[fix] fix font path lookup for wqy/dejavu by switching from OpenType to TrueType

[fix] update MiniRTC: refactor IceAgent to improve stability
[fix] fix Linux audio fallback when audio devices are unavaliable
2026-03-23 00:20:17 +08:00 · 2026-03-22 00:39:19 +08:00 · 2026-03-20 15:58:59 +08:00 · 2026-03-20 15:14:45 +08:00 · 2026-03-20 15:02:34 +08:00 · 2026-03-20 14:56:40 +08:00
86 changed files with 11021 additions and 3702 deletions
--- a/.github/ISSUE_TEMPLATE/问题反馈.md
+++ b/.github/ISSUE_TEMPLATE/问题反馈.md
@@ -0,0 +1,35 @@
+---
+name: 问题反馈
+about: 请在此提交问题报告，以便持续优化产品。
+title: ''
+labels: bug
+assignees: kunkundi
+
+---
+
+**描述问题**
+清晰简洁地描述遇到的错误。
+
+**复现步骤**
+复现该问题的步骤：
+1. 前往 '...'
+2. 点击 '....'
+3. 出现错误
+
+**预期行为**
+清晰简洁地描述你期望发生的行为。
+
+**截图**
+如果适用，请添加截图以帮助说明问题。
+
+**桌面端信息（请填写以下内容）：**
+ - 操作系统: [例如 Windows 11]
+ - 版本: [例如 v1.1.10]
+
+**移动端信息（请填写以下内容）：**
+ - 设备: [例如 iPhone 17]
+ - 操作系统: [例如 iOS 26.1]
+ - 浏览器: [例如 系统浏览器、Safari]
+
+**补充信息**
+在此添加与问题相关的其他上下文内容。
--- a/.github/ISSUE_TEMPLATE/需求建议.md
+++ b/.github/ISSUE_TEMPLATE/需求建议.md
@@ -0,0 +1,28 @@
+---
+name: 需求建议
+about: 请在此提交功能需求或改进建议，以便后续迭代参考。
+title: ''
+labels: enhancement
+assignees: kunkundi
+
+---
+
+**功能/改进建议描述**
+清晰简洁地描述希望新增的功能或改进的内容。
+
+**使用场景 / 背景**
+说明该功能或改进的使用场景，以及解决后带来的价值。
+
+**预期效果**
+描述你认为最理想的功能表现或改进效果。
+
+**参考示例（可选）**
+提供类似功能截图、参考链接或其他说明，帮助更好理解需求。
+
+**优先级（可选）**
+- [ ] 高
+- [ ] 中
+- [ ] 低
+
+**补充信息（可选）**
+其他相关信息或特殊要求。
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,82 +15,28 @@ env:
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

 jobs:
-  # Linux amd64
-  build-linux-amd64:
-    name: Build on Ubuntu 22.04 amd64
-    runs-on: ubuntu-22.04
-    container:
-      image: crossdesk/ubuntu20.04:latest
-      options: --user root
-    steps:
-      - name: Extract version number
-        id: version
-        run: |
-          VERSION="${GITHUB_REF##*/}"
-          VERSION_NUM="${VERSION#v}"
-          echo "VERSION_NUM=${VERSION_NUM}" >> $GITHUB_ENV
-
-      - name: Set legal Debian version
-        shell: bash
-        id: set_deb_version
-        run: |
-          SHORT_SHA=$(echo "${GITHUB_SHA}" | cut -c1-7)
-          BUILD_DATE=$(TZ=Asia/Shanghai date +%Y%m%d)
-          if [[ ! "${VERSION_NUM}" =~ ^[0-9] ]]; then
-            LEGAL_VERSION="v0.0.0-${VERSION_NUM}-${BUILD_DATE}-${SHORT_SHA}"
-          else
-            LEGAL_VERSION="v${VERSION_NUM}-${BUILD_DATE}-${SHORT_SHA}"
-          fi
-          echo "LEGAL_VERSION=${LEGAL_VERSION}" >> $GITHUB_ENV
-          echo "BUILD_DATE=${BUILD_DATE}" >> $GITHUB_ENV
-
-      - name: Checkout code
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
-
-      - name: Build CrossDesk
-        env:
-          CUDA_PATH: /usr/local/cuda
-          XMAKE_GLOBALDIR: /data
-        run: |
-          ls -la $XMAKE_GLOBALDIR
-          xmake f --CROSSDESK_VERSION=${LEGAL_VERSION} --USE_CUDA=true --root -y
-          xmake b -vy --root crossdesk
-
-      - name: Decode and save certificate
-        shell: bash
-        run: |
-          mkdir -p certs
-          echo "${{ secrets.CROSSDESK_CERT_BASE64 }}" | base64 --decode > certs/crossdesk.cn_root.crt
-
-      - name: Package
-        run: |
-          chmod +x ./scripts/linux/pkg_amd64.sh
-          ./scripts/linux/pkg_amd64.sh ${LEGAL_VERSION}
-
-      - name: Upload artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: crossdesk-linux-amd64-${{ env.LEGAL_VERSION }}
-          path: ${{ github.workspace }}/crossdesk-linux-amd64-${{ env.LEGAL_VERSION }}.deb
-
-  # Linux arm64
-  build-linux-arm64:
-    name: Build on Ubuntu 22.04 arm64
-    runs-on: ubuntu-22.04-arm
+  build-linux:
+    name: Build Linux (${{ matrix.arch }})
+    runs-on: ${{ matrix.runner }}
    strategy:
      matrix:
        include:
+          - arch: amd64
+            runner: ubuntu-22.04
+            image: crossdesk/ubuntu20.04:latest
+            package_script: ./scripts/linux/pkg_amd64.sh
+
          - arch: arm64
+            runner: ubuntu-22.04-arm
            image: crossdesk/ubuntu20.04-arm64v8:latest
            package_script: ./scripts/linux/pkg_arm64.sh
+
    container:
      image: ${{ matrix.image }}
      options: --user root
+
    steps:
      - name: Extract version number
-        id: version
        run: |
          VERSION="${GITHUB_REF##*/}"
          VERSION_NUM="${VERSION#v}"
@@ -98,20 +44,21 @@ jobs:

      - name: Set legal Debian version
        shell: bash
-        id: set_deb_version
        run: |
          SHORT_SHA=$(echo "${GITHUB_SHA}" | cut -c1-7)
          BUILD_DATE=$(TZ=Asia/Shanghai date +%Y%m%d)
+
          if [[ ! "${VERSION_NUM}" =~ ^[0-9] ]]; then
            LEGAL_VERSION="v0.0.0-${VERSION_NUM}-${BUILD_DATE}-${SHORT_SHA}"
          else
            LEGAL_VERSION="v${VERSION_NUM}-${BUILD_DATE}-${SHORT_SHA}"
          fi
+
          echo "LEGAL_VERSION=${LEGAL_VERSION}" >> $GITHUB_ENV
          echo "BUILD_DATE=${BUILD_DATE}" >> $GITHUB_ENV

      - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
        with:
          submodules: recursive

@@ -123,19 +70,13 @@ jobs:
          xmake f --CROSSDESK_VERSION=${LEGAL_VERSION} --USE_CUDA=true --root -y
          xmake b -vy --root crossdesk

-      - name: Decode and save certificate
-        shell: bash
-        run: |
-          mkdir -p certs
-          echo "${{ secrets.CROSSDESK_CERT_BASE64 }}" | base64 --decode > certs/crossdesk.cn_root.crt
-
      - name: Package
        run: |
          chmod +x ${{ matrix.package_script }}
          ${{ matrix.package_script }} ${LEGAL_VERSION}

      - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
        with:
          name: crossdesk-linux-${{ matrix.arch }}-${{ env.LEGAL_VERSION }}
          path: ${{ github.workspace }}/crossdesk-linux-${{ matrix.arch }}-${{ env.LEGAL_VERSION }}.deb
@@ -171,10 +112,10 @@ jobs:
          echo "BUILD_DATE=${BUILD_DATE}" >> $GITHUB_ENV

      - name: Cache xmake dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
        with:
          path: ~/.xmake/packages
-          key: ${{ runner.os }}-xmake-deps-${{ matrix.cache-key }}-${{ hashFiles('**/xmake.lua') }}
+          key: ${{ runner.os }}-xmake-deps-${{ matrix.cache-key }}-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-xmake-deps-${{ matrix.cache-key }}-

@@ -182,7 +123,7 @@ jobs:
        run: brew install xmake

      - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5

      - name: Initialize submodules
        run: git submodule update --init --recursive
@@ -192,19 +133,13 @@ jobs:
          xmake f --CROSSDESK_VERSION=${VERSION_NUM} --USE_CUDA=true -y
          xmake b -vy crossdesk

-      - name: Decode and save certificate
-        shell: bash
-        run: |
-          mkdir -p certs
-          echo "${{ secrets.CROSSDESK_CERT_BASE64 }}" | base64 --decode > certs/crossdesk.cn_root.crt
-
      - name: Package CrossDesk app
        run: |
          chmod +x ${{ matrix.package_script }}
          ${{ matrix.package_script }} ${VERSION_NUM}

      - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
        with:
          name: crossdesk-macos-${{ matrix.arch }}-${{ env.VERSION_NUM }}
          path: crossdesk-macos-${{ matrix.arch }}-${{ env.VERSION_NUM }}.pkg
@@ -234,10 +169,10 @@ jobs:
          echo "BUILD_DATE=$BUILD_DATE" >> $env:GITHUB_ENV

      - name: Cache xmake dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
        with:
          path: D:\xmake_global\.xmake\packages
-          key: ${{ runner.os }}-xmake-deps-intel-${{ hashFiles('**/xmake.lua') }}
+          key: ${{ runner.os }}-xmake-deps-intel-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-xmake-deps-intel-

@@ -286,7 +221,7 @@ jobs:
          Copy-Item $source $target -Force

      - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5

      - name: Initialize submodules
        run: git submodule update --init --recursive
@@ -301,37 +236,45 @@ jobs:
          xmake f --CROSSDESK_VERSION=${{ env.VERSION_NUM }} --USE_CUDA=true -y
          xmake b -vy crossdesk

-      - name: Decode and save certificate
-        shell: powershell
-        run: |
-          New-Item -ItemType Directory -Force -Path certs
-          [System.IO.File]::WriteAllBytes('certs\crossdesk.cn_root.crt', [Convert]::FromBase64String('${{ secrets.CROSSDESK_CERT_BASE64 }}'))
-
      - name: Package
        shell: pwsh
        run: |
          cd "${{ github.workspace }}\scripts\windows"
          makensis /DVERSION=$env:VERSION_NUM nsis_script.nsi

+      - name: Package Portable
+        shell: pwsh
+        run: |
+          $portableDir = "${{ github.workspace }}\portable"
+          New-Item -ItemType Directory -Force -Path $portableDir
+          Copy-Item "${{ github.workspace }}\build\windows\x64\release\crossdesk.exe" "$portableDir\CrossDesk.exe"
+          Compress-Archive -Path "$portableDir\*" -DestinationPath "${{ github.workspace }}\crossdesk-win-x64-portable-${{ env.VERSION_NUM }}.zip"
+
      - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
        with:
          name: crossdesk-win-x64-${{ env.VERSION_NUM }}
          path: ${{ github.workspace }}/scripts/windows/crossdesk-win-x64-${{ env.VERSION_NUM }}.exe

+      - name: Upload portable artifact
+        uses: actions/upload-artifact@v6
+        with:
+          name: crossdesk-win-x64-portable-${{ env.VERSION_NUM }}
+          path: ${{ github.workspace }}/crossdesk-win-x64-portable-${{ env.VERSION_NUM }}.zip
+
  release:
    name: Publish Release
    if: startsWith(github.ref, 'refs/tags/v')
    needs:
-      [build-linux-amd64, build-linux-arm64, build-macos, build-windows-x64]
+      [build-linux, build-macos, build-windows-x64]
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5

      - name: Download all artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
        with:
          path: artifacts

@@ -359,6 +302,7 @@ jobs:
          cp artifacts/crossdesk-linux-amd64-${{ steps.version.outputs.VERSION_WITH_V }}/* release/crossdesk-linux-amd64-${{ steps.version.outputs.VERSION_WITH_V }}.deb
          cp artifacts/crossdesk-linux-arm64-${{ steps.version.outputs.VERSION_WITH_V }}/* release/crossdesk-linux-arm64-${{ steps.version.outputs.VERSION_WITH_V }}.deb
          cp artifacts/crossdesk-win-x64-${{ steps.version.outputs.VERSION_WITH_V }}/* release/crossdesk-win-x64-${{ steps.version.outputs.VERSION_WITH_V }}.exe
+          cp artifacts/crossdesk-win-x64-portable-${{ steps.version.outputs.VERSION_WITH_V }}/* release/crossdesk-win-x64-portable-${{ steps.version.outputs.VERSION_WITH_V }}.zip

      - name: List release files
        run: ls -lh release/
@@ -408,11 +352,18 @@ jobs:
          {
            "version": "${{ steps.version.outputs.VERSION_ONLY }}",
            "releaseDate": "${{ steps.version.outputs.BUILD_DATE_ISO }}",
+            "releaseName": "",
+            "releaseNotes": "",
+            "tagName": "${{ steps.version.outputs.VERSION_WITH_V }}",
            "downloads": {
              "windows-x64": {
                "url": "https://downloads.crossdesk.cn/crossdesk-win-x64-${{ steps.version.outputs.VERSION_WITH_V }}.exe",
                "filename": "crossdesk-win-x64-${{ steps.version.outputs.VERSION_WITH_V }}.exe"
              },
+              "windows-x64-portable": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-win-x64-portable-${{ steps.version.outputs.VERSION_WITH_V }}.zip",
+                "filename": "crossdesk-win-x64-portable-${{ steps.version.outputs.VERSION_WITH_V }}.zip"
+              },
              "macos-x64": {
                "url": "https://downloads.crossdesk.cn/crossdesk-macos-x64-${{ steps.version.outputs.VERSION_WITH_V }}.pkg",
                "filename": "crossdesk-macos-x64-${{ steps.version.outputs.VERSION_WITH_V }}.pkg"
--- a/.github/workflows/update-version-json.yml
+++ b/.github/workflows/update-version-json.yml
@@ -0,0 +1,144 @@
+name: Update version.json from Release
+
+on:
+  release:
+    types: [published, edited]
+
+permissions:
+  contents: write
+
+jobs:
+  update-version-json:
+    name: Update version.json with release information
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract version from tag
+        id: version
+        run: |
+          TAG_NAME="${{ github.event.release.tag_name }}"
+          VERSION_ONLY="${TAG_NAME#v}"
+          echo "TAG_NAME=${TAG_NAME}" >> $GITHUB_OUTPUT
+          echo "VERSION_ONLY=${VERSION_ONLY}" >> $GITHUB_OUTPUT
+
+          # Extract date from tag if available (format: v1.2.3-20251113-abc)
+          if [[ "${TAG_NAME}" =~ -([0-9]{8})- ]]; then
+            DATE_STR="${BASH_REMATCH[1]}"
+            BUILD_DATE_ISO="${DATE_STR:0:4}-${DATE_STR:4:2}-${DATE_STR:6:2}"
+          else
+            # Use release published date
+            BUILD_DATE_ISO=$(echo "${{ github.event.release.published_at }}" | cut -d'T' -f1)
+          fi
+          echo "BUILD_DATE_ISO=${BUILD_DATE_ISO}" >> $GITHUB_OUTPUT
+
+      - name: Install jq
+        run: sudo apt-get update && sudo apt-get install -y jq
+
+      - name: Get release information
+        id: release_info
+        run: |
+          # Use jq to properly escape JSON
+          RELEASE_BODY="${{ github.event.release.body }}"
+          RELEASE_NAME="${{ github.event.release.name }}"
+
+          # Handle empty values
+          if [ -z "$RELEASE_BODY" ]; then
+            RELEASE_BODY=""
+          fi
+          if [ -z "$RELEASE_NAME" ]; then
+            RELEASE_NAME=""
+          fi
+
+          # Save to temporary files for proper handling
+          echo -n "$RELEASE_BODY" > /tmp/release_body.txt
+          echo -n "$RELEASE_NAME" > /tmp/release_name.txt
+
+          # Use jq to escape JSON strings
+          RELEASE_BODY_JSON=$(jq -Rs . < /tmp/release_body.txt)
+          RELEASE_NAME_JSON=$(jq -Rs . < /tmp/release_name.txt)
+
+          echo "RELEASE_BODY=${RELEASE_BODY_JSON}" >> $GITHUB_OUTPUT
+          echo "RELEASE_NAME=${RELEASE_NAME_JSON}" >> $GITHUB_OUTPUT
+
+      - name: Download current version.json from server
+        id: download_version
+        continue-on-error: true
+        run: |
+          # Try to download current version.json from server
+          curl -f -s "https://version.crossdesk.cn/version.json" -o version.json || echo "Failed to download, will create new one"
+
+      - name: Generate or update version.json
+        run: |
+          # If version.json exists, try to preserve downloads section
+          if [ -f version.json ] && jq -e '.downloads' version.json > /dev/null 2>&1; then
+            EXISTING_DOWNLOADS=$(jq -c '.downloads' version.json)
+            if [ "$EXISTING_DOWNLOADS" != "null" ] && [ "$EXISTING_DOWNLOADS" != "{}" ]; then
+              DOWNLOADS_JSON="$EXISTING_DOWNLOADS"
+            else
+              DOWNLOADS_JSON=""
+            fi
+          else
+            DOWNLOADS_JSON=""
+          fi
+
+          # If downloads is empty, use default structure
+          if [ -z "$DOWNLOADS_JSON" ]; then
+            DOWNLOADS_JSON=$(cat << DOWNLOADS_EOF
+            {
+              "windows-x64": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-win-x64-${{ steps.version.outputs.TAG_NAME }}.exe",
+                "filename": "crossdesk-win-x64-${{ steps.version.outputs.TAG_NAME }}.exe"
+              },
+              "windows-x64-portable": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-win-x64-portable-${{ steps.version.outputs.TAG_NAME }}.zip",
+                "filename": "crossdesk-win-x64-portable-${{ steps.version.outputs.TAG_NAME }}.zip"
+              },
+              "macos-x64": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-macos-x64-${{ steps.version.outputs.TAG_NAME }}.pkg",
+                "filename": "crossdesk-macos-x64-${{ steps.version.outputs.TAG_NAME }}.pkg"
+              },
+              "macos-arm64": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-macos-arm64-${{ steps.version.outputs.TAG_NAME }}.pkg",
+                "filename": "crossdesk-macos-arm64-${{ steps.version.outputs.TAG_NAME }}.pkg"
+              },
+              "linux-amd64": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-linux-amd64-${{ steps.version.outputs.TAG_NAME }}.deb",
+                "filename": "crossdesk-linux-amd64-${{ steps.version.outputs.TAG_NAME }}.deb"
+              },
+              "linux-arm64": {
+                "url": "https://downloads.crossdesk.cn/crossdesk-linux-arm64-${{ steps.version.outputs.TAG_NAME }}.deb",
+                "filename": "crossdesk-linux-arm64-${{ steps.version.outputs.TAG_NAME }}.deb"
+              }
+            }
+          DOWNLOADS_EOF
+                      )
+                    fi
+
+          # Generate version.json using cat and heredoc
+          cat > version.json << EOF
+          {
+            "version": "${{ steps.version.outputs.VERSION_ONLY }}",
+            "releaseDate": "${{ steps.version.outputs.BUILD_DATE_ISO }}",
+            "releaseName": ${{ steps.release_info.outputs.RELEASE_NAME }},
+            "releaseNotes": ${{ steps.release_info.outputs.RELEASE_BODY }},
+            "tagName": "${{ steps.version.outputs.TAG_NAME }}",
+            "downloads": ${DOWNLOADS_JSON}
+          }
+          EOF
+
+          cat version.json
+
+      - name: Upload version.json to server
+        uses: burnett01/rsync-deployments@5.2
+        with:
+          switches: -avzr --delete
+          path: version.json
+          remote_path: /var/www/html/version/
+          remote_host: ${{ secrets.SERVER_HOST }}
+          remote_user: ${{ secrets.SERVER_USER }}
+          remote_key: ${{ secrets.SERVER_KEY }}
--- a/.gitignore
+++ b/.gitignore
@@ -6,5 +6,4 @@ build/
 .DS_Store

 # VSCode cache
-.vscode
-continuous-desk.code-workspace
+.vscode
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # CrossDesk

+<a href="https://hellogithub.com/repository/kunkundi/crossdesk" target="_blank"><img src="https://api.hellogithub.com/v1/widgets/recommend.svg?rid=55d41367570345f1838e02fd12be7961&claim_uid=cb0OpZRrBuGVAfL&theme=small" alt="Featured｜HelloGitHub" /></a>
 [![Platform](https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-brightgreen.svg)]()
 [![License: LGPL v3](https://img.shields.io/badge/License-LGPL%20v3-blue.svg)](https://www.gnu.org/licenses/lgpl-3.0)
 [![GitHub last commit](https://img.shields.io/github/last-commit/kunkundi/crossdesk)](https://github.com/kunkundi/crossdesk/commits/web-client)
@@ -61,7 +62,7 @@ CrossDesk 是 [MiniRTC](https://github.com/kunkundi/minirtc.git) 实时音视频
 Linux环境下需安装以下包：

 ```
-sudo apt-get install -y software-properties-common git curl unzip build-essential libx11-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxcb-randr0-dev libxcb-xtest0-dev libxcb-xinerama0-dev libxcb-shape0-dev libxcb-xkb-dev libxcb-xfixes0-dev libxv-dev libxtst-dev libasound2-dev libsndio-dev libxcb-shm0-dev libasound2-dev libpulse-dev
+sudo apt-get install -y software-properties-common git curl unzip build-essential libx11-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxcb-randr0-dev libxcb-xtest0-dev libxcb-xinerama0-dev libxcb-shape0-dev libxcb-xkb-dev libxcb-xfixes0-dev libxfixes-dev libxv-dev libxtst-dev libasound2-dev libsndio-dev libxcb-shm0-dev libasound2-dev libpulse-dev
 ```

 编译
@@ -168,7 +169,7 @@ xmake r -d crossdesk

 ## 自托管服务器
 推荐使用Docker部署CrossDesk Server。
-```
+```bash
 sudo docker run -d \
  --name crossdesk_server \
  --network host \
@@ -178,158 +179,86 @@ sudo docker run -d \
  -e COTURN_PORT=xxxx \
  -e MIN_PORT=xxxxx \
  -e MAX_PORT=xxxxx \
-  -v /path/to/your/certs:/crossdesk-server/certs \
-  -v /path/to/your/db:/crossdesk-server/db \
-  -v /path/to/your/logs:/crossdesk-server/logs \
-  crossdesk/crossdesk-server:v1.1.1
+  -v /var/lib/crossdesk:/var/lib/crossdesk \
+  -v /var/log/crossdesk:/var/log/crossdesk \
+  crossdesk/crossdesk-server:v1.1.6
 ```

 上述命令中，用户需注意的参数如下：

+**参数**
 - EXTERNAL_IP：服务器公网 IP , 对应 CrossDesk 客户端**自托管服务器配置**中填写的**服务器地址**
-
 - INTERNAL_IP：服务器内网 IP
-
 - CROSSDESK_SERVER_PORT：自托管服务使用的端口，对应 CrossDesk 客户端**自托管服务器配置**中填写的**服务器端口**
-
 - COTURN_PORT: COTURN 服务使用的端口, 对应 CrossDesk 客户端**自托管服务器配置**中填写的**中继服务端口**
-
 - MIN_PORT/MAX_PORT：COTURN 服务使用的端口范围，例如：MIN_PORT=50000, MAX_PORT=60000，范围可根据客户端数量调整。
+- `-v /var/lib/crossdesk:/var/lib/crossdesk`：持久化数据库和证书文件到宿主机
+- `-v /var/log/crossdesk:/var/log/crossdesk`：持久化日志文件到宿主机

- /path/to/your/certs：证书文件目录
-
- /path/to/your/db：CrossDesk Server 设备管理数据库
-
- /path/to/your/logs：日志目录
+**示例**：
+```bash
+sudo docker run -d \
+  --name crossdesk_server \
+  --network host \
+  -e EXTERNAL_IP=114.114.114.114 \
+  -e INTERNAL_IP=10.0.0.1 \
+  -e CROSSDESK_SERVER_PORT=9099 \
+  -e COTURN_PORT=3478 \
+  -e MIN_PORT=50000 \
+  -e MAX_PORT=60000 \
+  -v /var/lib/crossdesk:/var/lib/crossdesk \
+  -v /var/log/crossdesk:/var/log/crossdesk \
+  crossdesk/crossdesk-server:v1.1.6
+```

 **注意**：
- **/path/to/your/ 是示例路径，请替换为你自己的实际路径。挂载的目录必须事先创建好，否则容器会报错。**
- **服务器需开放端口：3478/udp，3478/tcp，MIN_PORT-MAX_PORT/udp，CROSSDESK_SERVER_PORT/tcp。**
+- **服务器需开放端口：COTURN_PORT/udp，COTURN_PORT/tcp，MIN_PORT-MAX_PORT/udp，CROSSDESK_SERVER_PORT/tcp。**
+- 如果不挂载 volume，容器删除后数据会丢失
+- 证书文件会在首次启动时自动生成并持久化到宿主机的 `/var/lib/crossdesk/certs` 路径下。由于默认使用的是自签证书，无法保障安全性，建议在云服务商申请正式证书放到该目录下并重启服务。
+- 数据库文件会自动创建并持久化到宿主机的 `/var/lib/crossdesk/db/crossdesk-server.db` 路径下
+- 日志文件会自动创建并持久化到宿主机的 `/var/log/crossdesk/` 路径下

-## 证书文件
-客户端需加载根证书文件，服务端需加载服务器私钥和服务器证书文件。
-
-如果已有SSL证书的用户，可以忽略下面的证书生成步骤。
-
-对于无证书的用户，可使用下面的脚本自行生成证书文件：
-```
-# 创建证书生成脚本
-vim generate_certs.sh
-```
-拷贝到脚本中
-```
-#!/bin/bash
-set -e
-
-# 检查参数
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <SERVER_IP>"
-    exit 1
-fi
-
-SERVER_IP="$1"
-
-# 文件名
-ROOT_KEY="crossdesk.cn_root.key"
-ROOT_CERT="crossdesk.cn_root.crt"
-SERVER_KEY="crossdesk.cn.key"
-SERVER_CSR="crossdesk.cn.csr"
-SERVER_CERT="crossdesk.cn_bundle.crt"
-FULLCHAIN_CERT="crossdesk.cn_fullchain.crt"
-
-# 证书主题
-SUBJ="/C=CN/ST=Zhejiang/L=Hangzhou/O=CrossDesk/OU=CrossDesk/CN=$SERVER_IP"
-
-# 1. 生成根证书
-echo "Generating root private key..."
-openssl genrsa -out "$ROOT_KEY" 4096
-
-echo "Generating self-signed root certificate..."
-openssl req -x509 -new -nodes -key "$ROOT_KEY" -sha256 -days 3650 -out "$ROOT_CERT" -subj "$SUBJ"
-
-# 2. 生成服务器私钥
-echo "Generating server private key..."
-openssl genrsa -out "$SERVER_KEY" 2048
-
-# 3. 生成服务器 CSR
-echo "Generating server CSR..."
-openssl req -new -key "$SERVER_KEY" -out "$SERVER_CSR" -subj "$SUBJ"
-
-# 4. 生成临时 OpenSSL 配置文件，加入 SAN
-SAN_CONF="san.cnf"
-cat > $SAN_CONF <<EOL
-[ req ]
-default_bits = 2048
-distinguished_name = req_distinguished_name
-req_extensions = req_ext
-prompt = no
-
-[ req_distinguished_name ]
-C = CN
-ST = Zhejiang
-L = Hangzhou
-O = CrossDesk
-OU = CrossDesk
-CN = $SERVER_IP
-
-[ req_ext ]
-subjectAltName = IP:$SERVER_IP
-EOL
-
-# 5. 用根证书签发服务器证书（包含 SAN）
-echo "Signing server certificate with root certificate..."
-openssl x509 -req -in "$SERVER_CSR" -CA "$ROOT_CERT" -CAkey "$ROOT_KEY" -CAcreateserial \
-  -out "$SERVER_CERT" -days 3650 -sha256 -extfile "$SAN_CONF" -extensions req_ext
-
-# 6. 生成完整链证书
-cat "$SERVER_CERT" "$ROOT_CERT" > "$FULLCHAIN_CERT"
-
-# 7. 清理中间文件
-rm -f "$ROOT_CERT.srl" "$SAN_CONF" "$ROOT_KEY" "$SERVER_CSR" "FULLCHAIN_CERT"
-
-echo "Generation complete. Deployment files:"
-echo "  Client root certificate: $ROOT_CERT"
-echo "  Server private key: $SERVER_KEY"
-echo "  Server certificate: $SERVER_CERT"
-```
-执行
-```
-chmod +x generate_certs.sh
-./generate_certs.sh 服务器公网IP
-
-# 例如 ./generate_certs.sh 111.111.111.111
-```
-输出如下：
-```
-Generating root private key...
-Generating self-signed root certificate...
-Generating server private key...
-Generating server CSR...
-Signing server certificate with root certificate...
-Certificate request self-signature ok
-subject=C = CN, ST = Zhejiang, L = Hangzhou, O = CrossDesk, OU = CrossDesk, CN = xxx.xxx.xxx.xxx
-cleaning up intermediate files...
-Generation complete. Deployment files::
-  Client root certificate:: crossdesk.cn_root.crt
-  Server private key: crossdesk.cn.key
-  Server certificate: crossdesk.cn_bundle.crt
+**权限注意**：如果 Docker 自动创建的目录权限不足（属于 root），容器内用户无法写入，会导致：
+  - 证书生成失败，容器启动脚本会报错退出
+  - 数据库目录创建失败，程序会抛出异常并崩溃
+  - 日志目录创建失败，日志文件无法写入（但程序可能继续运行）
+  
+**解决方案**：在启动容器前手动设置权限：
+```bash
+sudo mkdir -p /var/lib/crossdesk /var/log/crossdesk
+sudo chown -R $(id -u):$(id -g) /var/lib/crossdesk /var/log/crossdesk
 ```

-#### 服务端
-将 **crossdesk.cn.key** 和 **crossdesk.cn_bundle.crt** 放置到 **/path/to/your/certs** 目录下。

-#### 客户端
-1. 点击右上角设置进入设置页面。<br>
-<img width="600" height="210" alt="image" src="https://github.com/user-attachments/assets/6431131d-b32a-4726-8783-6788f47baa3b" /><br><br>
+### 客户端
+1. 点击右上角设置进入设置页面。<br><br>
+<img width="600" height="210" alt="image" src="https://github.com/user-attachments/assets/6431131d-b32a-4726-8783-6788f47baa3b" /><br>

-3. 点击点击**自托管服务器配置**。<br><br>
-<img width="600" height="160" alt="image" src="https://github.com/user-attachments/assets/24c761a3-1985-4d7e-84be-787383c2afb8" /><br><br>
+2. 点击`自托管服务器配置`按钮。<br><br>
+<img width="600" height="160" alt="image" src="https://github.com/user-attachments/assets/24c761a3-1985-4d7e-84be-787383c2afb8" /><br>

-5. 在**证书文件路径**选择框中找到 **crossdesk.cn_root.crt** 的存放路径，选中 **crossdesk.cn_root.crt**，点击确认。<br><br>
-<img width="600" height="220" alt="image" src="https://github.com/user-attachments/assets/4af7cd3a-c72e-44fb-b032-30e050019c2a" /><br><br>
+3. 输入`服务器地址`(**EXTERNAL_IP**)、`信令服务端口`(**CROSSDESK_SERVER_PORT**)、`中继服务端口`(**COTURN_PORT**)，点击确认按钮。
+   
+4. 勾选`自托管服务器配置`选项，点击确认按钮保存设置。如果服务端使用的是正式证书，则到此步骤为止，客户端即可显示已连接服务器。

-7. 勾选使用**自托管服务器配置**，点击确认配置生效。<br><br>
-<img width="600" height="160" alt="image" src="https://github.com/user-attachments/assets/1e455dc3-4087-4f37-a544-1ff9f8789383" /><br><br>
+5. 如果使用默认证书（正式证书忽略此步骤），则需要将服务端`/var/lib/crossdesk/certs/`目录下的`api.crossdesk.cn_root.crt`自签根证书下载到运行客户端的机器，并执行下述命令安装证书：
+
+Windows 平台使用**管理员权限**打开 PowerShell 执行
+```
+certutil -addstore "Root" "C:\path\to\api.crossdesk.cn_root.crt"
+```
+Linux
+```
+sudo cp /path/to/api.crossdesk.cn_root.crt /usr/local/share/ca-certificates/api.crossdesk.cn_root.crt
+sudo update-ca-certificates
+```
+macOS
+```
+sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain path/to/api.crossdesk.cn_root.crt
+```
+
+### Web 客户端
+详情见项目 [CrossDesk Web Client](https://github.com/kunkundi/crossdesk-web-client)。

 # 常见问题
 见 [常见问题](https://github.com/kunkundi/crossdesk/blob/self-hosted-server/docs/FAQ.md) 。
--- a/README_EN.md
+++ b/README_EN.md
@@ -1,5 +1,6 @@
 # CrossDesk

+<a href="https://hellogithub.com/repository/kunkundi/crossdesk" target="_blank"><img src="https://api.hellogithub.com/v1/widgets/recommend.svg?rid=55d41367570345f1838e02fd12be7961&claim_uid=cb0OpZRrBuGVAfL&theme=small" alt="Featured｜HelloGitHub" /></a>
 [![Platform](https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-brightgreen.svg)]()
 [![License: LGPL v3](https://img.shields.io/badge/License-LGPL%20v3-blue.svg)](https://www.gnu.org/licenses/lgpl-3.0)
 [![GitHub last commit](https://img.shields.io/github/last-commit/kunkundi/crossdesk)](https://github.com/kunkundi/crossdesk/commits/web-client)
@@ -64,7 +65,7 @@ Requirements:
 Following packages need to be installed on Linux:

 ```
-sudo apt-get install -y software-properties-common git curl unzip build-essential libx11-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxcb-randr0-dev libxcb-xtest0-dev libxcb-xinerama0-dev libxcb-shape0-dev libxcb-xkb-dev libxcb-xfixes0-dev libxv-dev libxtst-dev libasound2-dev libsndio-dev libxcb-shm0-dev libasound2-dev libpulse-dev
+sudo apt-get install -y software-properties-common git curl unzip build-essential libx11-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxcb-randr0-dev libxcb-xtest0-dev libxcb-xinerama0-dev libxcb-shape0-dev libxcb-xkb-dev libxcb-xfixes0-dev libxfixes-dev libxv-dev libxtst-dev libasound2-dev libsndio-dev libxcb-shm0-dev libasound2-dev libpulse-dev
 ```

 Build:
@@ -186,158 +187,90 @@ sudo docker run -d \
  -e COTURN_PORT=xxxx \
  -e MIN_PORT=xxxxx \
  -e MAX_PORT=xxxxx \
-  -v /path/to/your/certs:/crossdesk-server/certs \
-  -v /path/to/your/db:/crossdesk-server/db \
-  -v /path/to/your/logs:/crossdesk-server/logs \
-  crossdesk/crossdesk-server:v1.1.1
+  -v /var/lib/crossdesk:/var/lib/crossdesk \
+  -v /var/log/crossdesk:/var/log/crossdesk \
+  crossdesk/crossdesk-server:v1.1.6
 ```

 The parameters you need to pay attention to are as follows:

- **EXTERNAL_IP**: The server's public IP, corresponding to the **Server Address** in the CrossDesk client **Self-Hosted Server Configuration**.
+**Parameters**
+- **EXTERNAL_IP**: The server’s public IP. This corresponds to **Server Address** in the CrossDesk client’s **Self-Hosted Server Configuration**.
+- **INTERNAL_IP**: The server’s internal IP.
+- **CROSSDESK_SERVER_PORT**: The port used by the self-hosted service. This corresponds to **Server Port** in the CrossDesk client’s **Self-Hosted Server Configuration**.
+- **COTURN_PORT**: The port used by the COTURN service. This corresponds to **Relay Service Port** in the CrossDesk client’s **Self-Hosted Server Configuration**.
+- **MIN_PORT / MAX_PORT**: The port range used by the COTURN service. Example: `MIN_PORT=50000`, `MAX_PORT=60000`. Adjust the range depending on the number of clients.
+- `-v /var/lib/crossdesk:/var/lib/crossdesk`: Persists database and certificate files on the host machine.
+- `-v /var/log/crossdesk:/var/log/crossdesk`: Persists log files on the host machine.

- **INTERNAL_IP**: The server's internal IP.
-
- **CROSSDESK_SERVER_PORT**: The port used by the self-hosted server, corresponding to the **Server Port** in the CrossDesk client **Self-Hosted Server Configuration**.
-
- **COTURN_PORT**: The port used by Coturn, corresponding to the **Relay Server Port** in the CrossDesk client **Self-Hosted Server Configuration**.
-
- **MIN_PORT** and **MAX_PORT**: The range of ports used by the self-hosted server, corresponding to the **Minimum Port** and **Maximum Port** in the CrossDesk client **Self-Hosted Server Configuration**. Example: 50000-60000. It depends on the number of devices connected to the server.
-
- **/path/to/your/certs**: Directory for certificate files.
-
- **/path/to/your/db**: CrossDesk Server device management database.
-
- **/path/to/your/logs**: Log directory.
-
-**Note**:  
- **/path/to/your/ is an example path; please replace it with your actual path. The mounted directories must be created in advance, otherwise the container will fail.**
- **The server must open the following ports: 3478/udp, 3478/tcp, 30000-60000/udp, CROSSDESK_SERVER_PORT/tcp.**
-
-## Certificate Files
-The client needs to load the root certificate, and the server needs to load the server private key and server certificate.
-
-If you already have an SSL certificate, you can skip the following certificate generation steps.
-
-For users without a certificate, you can use the script below to generate the certificate files:
-```
-# Create certificate generation script
-vim generate_certs.sh
-```
-Copy the following into the script:
-```
-#!/bin/bash
-set -e
-
-# Check arguments
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <SERVER_IP>"
-    exit 1
-fi
-
-SERVER_IP="$1"
-
-# Filenames
-ROOT_KEY="crossdesk.cn_root.key"
-ROOT_CERT="crossdesk.cn_root.crt"
-SERVER_KEY="crossdesk.cn.key"
-SERVER_CSR="crossdesk.cn.csr"
-SERVER_CERT="crossdesk.cn_bundle.crt"
-FULLCHAIN_CERT="crossdesk.cn_fullchain.crt"
-
-# Certificate subject
-SUBJ="/C=CN/ST=Zhejiang/L=Hangzhou/O=CrossDesk/OU=CrossDesk/CN=$SERVER_IP"
-
-# 1. Generate root certificate
-echo "Generating root private key..."
-openssl genrsa -out "$ROOT_KEY" 4096
-
-echo "Generating self-signed root certificate..."
-openssl req -x509 -new -nodes -key "$ROOT_KEY" -sha256 -days 3650 -out "$ROOT_CERT" -subj "$SUBJ"
-
-# 2. Generate server private key
-echo "Generating server private key..."
-openssl genrsa -out "$SERVER_KEY" 2048
-
-# 3. Generate server CSR
-echo "Generating server CSR..."
-openssl req -new -key "$SERVER_KEY" -out "$SERVER_CSR" -subj "$SUBJ"
-
-# 4. Create temporary OpenSSL config file with SAN
-SAN_CONF="san.cnf"
-cat > $SAN_CONF <<EOL
-[ req ]
-default_bits = 2048
-distinguished_name = req_distinguished_name
-req_extensions = req_ext
-prompt = no
-
-[ req_distinguished_name ]
-C = CN
-ST = Zhejiang
-L = Hangzhou
-O = CrossDesk
-OU = CrossDesk
-CN = $SERVER_IP
-
-[ req_ext ]
-subjectAltName = IP:$SERVER_IP
-EOL
-
-# 5. Sign server certificate with root certificate (including SAN)
-echo "Signing server certificate with root certificate..."
-openssl x509 -req -in "$SERVER_CSR" -CA "$ROOT_CERT" -CAkey "$ROOT_KEY" -CAcreateserial \
-  -out "$SERVER_CERT" -days 3650 -sha256 -extfile "$SAN_CONF" -extensions req_ext
-
-# 6. Generate full chain certificate
-cat "$SERVER_CERT" "$ROOT_CERT" > "$FULLCHAIN_CERT"
-
-# 7. Clean up intermediate files
-rm -f "$ROOT_CERT.srl" "$SAN_CONF" "$ROOT_KEY" "$SERVER_CSR" "FULLCHAIN_CERT"
-
-echo "Generation complete. Deployment files:"
-echo "  Client root certificate: $ROOT_CERT"
-echo "  Server private key: $SERVER_KEY"
-echo "  Server certificate: $SERVER_CERT"
-```
-Execute:
-```
-chmod +x generate_certs.sh
-./generate_certs.sh EXTERNAL_IP
-
-# example ./generate_certs.sh 111.111.111.111
-```
-Expected output:
-```
-Generating root private key...
-Generating self-signed root certificate...
-Generating server private key...
-Generating server CSR...
-Signing server certificate with root certificate...
-Certificate request self-signature ok
-subject=C = CN, ST = Zhejiang, L = Hangzhou, O = CrossDesk, OU = CrossDesk, CN = xxx.xxx.xxx.xxx
-cleaning up intermediate files...
-Generation complete. Deployment files::
-  Client root certificate:: crossdesk.cn_root.crt
-  Server private key: crossdesk.cn.key
-  Server certificate: crossdesk.cn_bundle.crt
+**Example**:
+```bash
+sudo docker run -d \
+  --name crossdesk_server \
+  --network host \
+  -e EXTERNAL_IP=114.114.114.114 \
+  -e INTERNAL_IP=10.0.0.1 \
+  -e CROSSDESK_SERVER_PORT=9099 \
+  -e COTURN_PORT=3478 \
+  -e MIN_PORT=50000 \
+  -e MAX_PORT=60000 \
+  -v /var/lib/crossdesk:/var/lib/crossdesk \
+  -v /var/log/crossdesk:/var/log/crossdesk \
+  crossdesk/crossdesk-server:v1.1.6
 ```

-#### Server Side
+**Notes**
+- **The server must open the following ports: COTURN_PORT/udp, COTURN_PORT/tcp, MIN_PORT–MAX_PORT/udp, and CROSSDESK_SERVER_PORT/tcp.**
+- If you don’t mount volumes, all data will be lost when the container is removed.
+- Certificate files will be automatically generated on first startup and persisted to the host at `/var/lib/crossdesk/certs`.As the default certificates are self-signed and cannot guarantee security, it is strongly recommended to apply for a trusted certificate from a cloud provider, deploy it to this directory, and restart the service.
+- The database file will be automatically created and stored at `/var/lib/crossdesk/db/crossdesk-server.db`.
+- Log files will be created and stored at `/var/log/crossdesk/`.
+
+**Permission Notice**
+If the directories automatically created by Docker belong to root and have insufficient write permissions, the container user may not be able to write to them. This can cause:
+  - Certificate generation failure, leading to startup script errors and container exit.
+  - Database directory creation failure, causing the program to throw exceptions and crash.
+  - Log directory creation failure, preventing logs from being written (though the program may continue running).
+
+**Solution:** Manually set permissions before starting the container:
+```bash
+sudo mkdir -p /var/lib/crossdesk /var/log/crossdesk
+sudo chown -R $(id -u):$(id -g) /var/lib/crossdesk /var/log/crossdesk
+```
+
+### Server Side
 Place **crossdesk.cn.key** and **crossdesk.cn_bundle.crt** into the **/path/to/your/certs** directory.

-#### Client Side
-1. Click the settings icon in the top-right corner to enter the settings page.<br>
-<img width="600" height="210" alt="image" src="https://github.com/user-attachments/assets/6431131d-b32a-4726-8783-6788f47baa3b" /><br><br>
+### Client Side
+1. Click the settings icon in the top-right corner to enter the settings page.<br><br>
+<img width="600" height="210" alt="image" src="https://github.com/user-attachments/assets/6431131d-b32a-4726-8783-6788f47baa3b" /><br>

-2. Click **Self-Hosted Server Configuration**.<br><br>
-<img width="600" height="160" alt="image" src="https://github.com/user-attachments/assets/24c761a3-1985-4d7e-84be-787383c2afb8" /><br><br>
+2. Click `Self-Hosted Server Configuration` button.<br><br>
+<img width="600" height="160" alt="image" src="https://github.com/user-attachments/assets/24c761a3-1985-4d7e-84be-787383c2afb8" /><br>

-3. In the **Certificate File Path** selection, locate and select the **crossdesk.cn_root.crt** file.<br><br>
-<img width="600" height="220" alt="image" src="https://github.com/user-attachments/assets/4af7cd3a-c72e-44fb-b032-30e050019c2a" /><br><br>
+3. Enter the `Server Address` (**EXTERNAL_IP**), `Signaling Service Port` (**CROSSDESK_SERVER_PORT**), and `Relay Service Port` (**COTURN_PORT**) and click OK button.

-4. Check the option to use **Self-Hosted Server Configuration**.<br><br>
-<img width="600" height="160" alt="image" src="https://github.com/user-attachments/assets/1e455dc3-4087-4f37-a544-1ff9f8789383" /><br><br>
+4. Check the `Self-hosted server configuration` option and click the OK button to save the settings. If the server is using a valid (official) certificate, the process ends here and the client will show that it is connected to the server.
+
+5. If the default certificate is used (skip this step if an official certificate is used), download the self-signed root certificate `api.crossdesk.cn_root.crt` from the server directory /var/lib/crossdesk/certs/ to the machine running the client, and install the certificate by executing the following command:
+
+On Windows, open PowerShell with **administrator privileges** and execute:
+```
+certutil -addstore "Root" "C:\path\to\api.crossdesk.cn_root.crt"
+```
+Linux
+```
+sudo cp /path/to/api.crossdesk.cn_root.crt /usr/local/share/ca-certificates/api.crossdesk.cn_root.crt
+sudo update-ca-certificates
+```
+macOS
+```
+sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain path/to/api.crossdesk.cn_root.crt
+```
+
+
+### Web Client
+See [CrossDesk Web Client](https://github.com/kunkundi/crossdesk-web-client)。

 # FAQ
 See [FAQ](https://github.com/kunkundi/crosssesk/blob/self-hosted-server/docs/FAQ.md) .
--- a/scripts/linux/pkg_amd64.sh
+++ b/scripts/linux/pkg_amd64.sh
@@ -15,21 +15,18 @@ DEB_VERSION="${APP_VERSION#v}"
 DEB_DIR="${PKG_NAME}-${DEB_VERSION}"
 DEBIAN_DIR="$DEB_DIR/DEBIAN"
 BIN_DIR="$DEB_DIR/usr/bin"
-CERT_SRC_DIR="$DEB_DIR/opt/$PKG_NAME/certs"
 ICON_BASE_DIR="$DEB_DIR/usr/share/icons/hicolor"
 DESKTOP_DIR="$DEB_DIR/usr/share/applications"

 rm -rf "$DEB_DIR"

-mkdir -p "$DEBIAN_DIR" "$BIN_DIR" "$CERT_SRC_DIR" "$DESKTOP_DIR"
+mkdir -p "$DEBIAN_DIR" "$BIN_DIR" "$DESKTOP_DIR"

 cp build/linux/x86_64/release/crossdesk "$BIN_DIR/$PKG_NAME"
 chmod +x "$BIN_DIR/$PKG_NAME"

 ln -s "$PKG_NAME" "$BIN_DIR/$APP_NAME"

-cp certs/crossdesk.cn_root.crt "$CERT_SRC_DIR/crossdesk.cn_root.crt"
-
 for size in 16 24 32 48 64 96 128 256; do
    mkdir -p "$ICON_BASE_DIR/${size}x${size}/apps"
    cp "icons/linux/crossdesk_${size}x${size}.png" \
@@ -71,7 +68,6 @@ if [ "\$1" = "remove" ] || [ "\$1" = "purge" ]; then
    rm -f /usr/bin/$PKG_NAME || true
    rm -f /usr/bin/$APP_NAME || true
    rm -f /usr/share/applications/$PKG_NAME.desktop || true
-    rm -rf /opt/$PKG_NAME/certs || true
    for size in 16 24 32 48 64 96 128 256; do
        rm -f /usr/share/icons/hicolor/\${size}x\${size}/apps/$PKG_NAME.png || true
    done
@@ -85,32 +81,9 @@ cat > "$DEBIAN_DIR/postinst" << 'EOF'
 #!/bin/bash
 set -e

-CERT_SRC="/opt/crossdesk/certs"
-CERT_FILE="crossdesk.cn_root.crt"
-
-for user_home in /home/*; do
-    [ -d "$user_home" ] || continue
-    username=$(basename "$user_home")
-    config_dir="$user_home/.config/CrossDesk/certs"
-    target="$config_dir/$CERT_FILE"
-
-    if [ ! -f "$target" ]; then
-        mkdir -p "$config_dir" || true
-        cp "$CERT_SRC/$CERT_FILE" "$target" || true
-        chown -R "$username:$username" "$user_home/.config/CrossDesk" || true
-        echo "✔ Installed cert for $username at $target"
-    fi
-done
-
-if [ -d "/root" ]; then
-    config_dir="/root/.config/CrossDesk/certs"
-    mkdir -p "$config_dir" || true
-    cp "$CERT_SRC/$CERT_FILE" "$config_dir/$CERT_FILE" || true
-    chown -R root:root /root/.config/CrossDesk || true
-fi
-
 exit 0
 EOF
+
 chmod +x "$DEBIAN_DIR/postinst"

 dpkg-deb --build "$DEB_DIR"
--- a/scripts/linux/pkg_arm64.sh
+++ b/scripts/linux/pkg_arm64.sh
@@ -15,21 +15,18 @@ DEB_VERSION="${APP_VERSION#v}"
 DEB_DIR="${PKG_NAME}-${DEB_VERSION}"
 DEBIAN_DIR="$DEB_DIR/DEBIAN"
 BIN_DIR="$DEB_DIR/usr/bin"
-CERT_SRC_DIR="$DEB_DIR/opt/$PKG_NAME/certs"
 ICON_BASE_DIR="$DEB_DIR/usr/share/icons/hicolor"
 DESKTOP_DIR="$DEB_DIR/usr/share/applications"

 rm -rf "$DEB_DIR"

-mkdir -p "$DEBIAN_DIR" "$BIN_DIR" "$CERT_SRC_DIR" "$DESKTOP_DIR"
+mkdir -p "$DEBIAN_DIR" "$BIN_DIR" "$DESKTOP_DIR"

 cp build/linux/arm64/release/crossdesk "$BIN_DIR"
 chmod +x "$BIN_DIR/$PKG_NAME"

 ln -s "$PKG_NAME" "$BIN_DIR/$APP_NAME"

-cp certs/crossdesk.cn_root.crt "$CERT_SRC_DIR/crossdesk.cn_root.crt"
-
 for size in 16 24 32 48 64 96 128 256; do
    mkdir -p "$ICON_BASE_DIR/${size}x${size}/apps"
    cp "icons/linux/crossdesk_${size}x${size}.png" \
@@ -70,7 +67,6 @@ if [ "\$1" = "remove" ] || [ "\$1" = "purge" ]; then
    rm -f /usr/bin/$PKG_NAME || true
    rm -f /usr/bin/$APP_NAME || true
    rm -f /usr/share/applications/$PKG_NAME.desktop || true
-    rm -rf /opt/$PKG_NAME/certs || true
    for size in 16 24 32 48 64 96 128 256; do
        rm -f /usr/share/icons/hicolor/\${size}x\${size}/apps/$PKG_NAME.png || true
    done
@@ -84,30 +80,6 @@ cat > "$DEBIAN_DIR/postinst" << 'EOF'
 #!/bin/bash
 set -e

-CERT_SRC="/opt/crossdesk/certs"
-CERT_FILE="crossdesk.cn_root.crt"
-
-for user_home in /home/*; do
-    [ -d "$user_home" ] || continue
-    username=$(basename "$user_home")
-    config_dir="$user_home/.config/CrossDesk/certs"
-    target="$config_dir/$CERT_FILE"
-
-    if [ ! -f "$target" ]; then
-        mkdir -p "$config_dir" || true
-        cp "$CERT_SRC/$CERT_FILE" "$target" || true
-        chown -R "$username:$username" "$user_home/.config/CrossDesk" || true
-        echo "✔ Installed cert for $username at $target"
-    fi
-done
-
-if [ -d "/root" ]; then
-    config_dir="/root/.config/CrossDesk/certs"
-    mkdir -p "$config_dir" || true
-    cp "$CERT_SRC/$CERT_FILE" "$config_dir/$CERT_FILE" || true
-    chown -R root:root /root/.config/CrossDesk || true
-fi
-
 exit 0
 EOF

--- a/scripts/macosx/pkg_arm64.sh
+++ b/scripts/macosx/pkg_arm64.sh
@@ -11,9 +11,6 @@ IDENTIFIER="cn.crossdesk.app"
 ICON_PATH="icons/macos/crossdesk.icns"
 MACOS_MIN_VERSION="10.12"

-CERTS_SOURCE="certs"
-CERT_NAME="crossdesk.cn_root.crt"
-
 APP_BUNDLE="${APP_NAME_UPPER}.app"
 CONTENTS_DIR="${APP_BUNDLE}/Contents"
 MACOS_DIR="${CONTENTS_DIR}/MacOS"
@@ -86,39 +83,95 @@ pkgbuild \
  --component "${APP_BUNDLE}" \
  build_pkg_temp/${APP_NAME}-component.pkg

-mkdir -p scripts
+mkdir -p build_pkg_scripts

-cat > scripts/postinstall <<'EOF'
+cat > build_pkg_scripts/postinstall <<'EOF'
 #!/bin/bash
+set -e
+
+IDENTIFIER="cn.crossdesk.app"
+
+# 获取当前登录用户
 USER_HOME=$( /usr/bin/stat -f "%Su" /dev/console )
 HOME_DIR=$( /usr/bin/dscl . -read /Users/$USER_HOME NFSHomeDirectory | awk '{print $2}' )

-DEST="$HOME_DIR/Library/Application Support/CrossDesk/certs"
+# 清除应用的权限授权，以便重新授权
+# 使用 tccutil 重置录屏权限和辅助功能权限
+if command -v tccutil >/dev/null 2>&1; then
+    # 重置录屏权限
+    tccutil reset ScreenCapture "$IDENTIFIER" 2>/dev/null || true
+    # 重置辅助功能权限
+    tccutil reset Accessibility "$IDENTIFIER" 2>/dev/null || true
+    # 重置摄像头权限（如果需要）
+    tccutil reset Camera "$IDENTIFIER" 2>/dev/null || true
+    # 重置麦克风权限（如果需要）
+    tccutil reset Microphone "$IDENTIFIER" 2>/dev/null || true
+fi

-mkdir -p "$DEST"
-cp -R "/Library/Application Support/CrossDesk/certs/"* "$DEST/"
+# 为所有用户清除权限（可选，如果需要）
+# 遍历所有用户目录并清除权限
+for USER_DIR in /Users/*; do
+    if [ -d "$USER_DIR" ] && [ "$USER_DIR" != "/Users/Shared" ]; then
+        USER_NAME=$(basename "$USER_DIR")
+        # 跳过系统用户
+        if [ "$USER_NAME" != "Shared" ] && [ -d "$USER_DIR/Library" ]; then
+            # 删除 TCC 数据库中的相关条目（需要管理员权限）
+            TCC_DB="$USER_DIR/Library/Application Support/com.apple.TCC/TCC.db"
+            if [ -f "$TCC_DB" ]; then
+                # 使用 sqlite3 删除相关权限记录（如果可用）
+                if command -v sqlite3 >/dev/null 2>&1; then
+                    sqlite3 "$TCC_DB" "DELETE FROM access WHERE client='$IDENTIFIER' AND service IN ('kTCCServiceScreenCapture', 'kTCCServiceAccessibility');" 2>/dev/null || true
+                fi
+            fi
+        fi
+    fi
+done

 exit 0
 EOF

-chmod +x scripts/postinstall
-
-pkgbuild \
-  --root "${CERTS_SOURCE}" \
-  --identifier "${IDENTIFIER}.certs" \
-  --version "${APP_VERSION}" \
-  --install-location "/Library/Application Support/CrossDesk/certs" \
-  --scripts scripts \
-  build_pkg_temp/${APP_NAME}-certs.pkg
+chmod +x build_pkg_scripts/postinstall

 productbuild \
  --package build_pkg_temp/${APP_NAME}-component.pkg \
-  --package build_pkg_temp/${APP_NAME}-certs.pkg \
  "${PKG_NAME}"

 echo "PKG package created: ${PKG_NAME}"

-rm -rf build_pkg_temp scripts ${APP_BUNDLE}
+# Set custom icon for PKG file
+if [ -f "${ICON_PATH}" ]; then
+    echo "Setting custom icon for PKG file..."
+    # Create a temporary iconset from icns
+    TEMP_ICON_DIR=$(mktemp -d)
+    cp "${ICON_PATH}" "${TEMP_ICON_DIR}/icon.icns"
+    
+    # Use sips to create a png from icns for the icon
+    sips -s format png "${TEMP_ICON_DIR}/icon.icns" --out "${TEMP_ICON_DIR}/icon.png" 2>/dev/null || true
+    
+    # Method: Use osascript to set file icon (works on macOS)
+    osascript <<APPLESCRIPT
+use framework "Foundation"
+use framework "AppKit"
+
+set iconPath to POSIX file "${TEMP_ICON_DIR}/icon.icns"
+set targetPath to POSIX file "$(pwd)/${PKG_NAME}"
+
+set iconImage to current application's NSImage's alloc()'s initWithContentsOfFile:(POSIX path of iconPath)
+set workspace to current application's NSWorkspace's sharedWorkspace()
+workspace's setIcon:iconImage forFile:(POSIX path of targetPath) options:0
+APPLESCRIPT
+
+    if [ $? -eq 0 ]; then
+        echo "Custom icon set successfully for ${PKG_NAME}"
+    else
+        echo "Warning: Failed to set custom icon (this is optional)"
+    fi
+    
+    rm -rf "${TEMP_ICON_DIR}"
+fi
+echo "Set icon finished"
+
+rm -rf build_pkg_temp build_pkg_scripts ${APP_BUNDLE}

 echo "PKG package created successfully."
 echo "package ${APP_BUNDLE}"
--- a/scripts/macosx/pkg_x64.sh
+++ b/scripts/macosx/pkg_x64.sh
@@ -11,9 +11,6 @@ IDENTIFIER="cn.crossdesk.app"
 ICON_PATH="icons/macos/crossdesk.icns"
 MACOS_MIN_VERSION="10.12"

-CERTS_SOURCE="certs"
-CERT_NAME="crossdesk.cn_root.crt"
-
 APP_BUNDLE="${APP_NAME_UPPER}.app"
 CONTENTS_DIR="${APP_BUNDLE}/Contents"
 MACOS_DIR="${CONTENTS_DIR}/MacOS"
@@ -86,39 +83,95 @@ pkgbuild \
  --component "${APP_BUNDLE}" \
  build_pkg_temp/${APP_NAME}-component.pkg

-mkdir -p scripts
+mkdir -p build_pkg_scripts

-cat > scripts/postinstall <<'EOF'
+cat > build_pkg_scripts/postinstall <<'EOF'
 #!/bin/bash
+set -e
+
+IDENTIFIER="cn.crossdesk.app"
+
+# 获取当前登录用户
 USER_HOME=$( /usr/bin/stat -f "%Su" /dev/console )
 HOME_DIR=$( /usr/bin/dscl . -read /Users/$USER_HOME NFSHomeDirectory | awk '{print $2}' )

-DEST="$HOME_DIR/Library/Application Support/CrossDesk/certs"
+# 清除应用的权限授权，以便重新授权
+# 使用 tccutil 重置录屏权限和辅助功能权限
+if command -v tccutil >/dev/null 2>&1; then
+    # 重置录屏权限
+    tccutil reset ScreenCapture "$IDENTIFIER" 2>/dev/null || true
+    # 重置辅助功能权限
+    tccutil reset Accessibility "$IDENTIFIER" 2>/dev/null || true
+    # 重置摄像头权限（如果需要）
+    tccutil reset Camera "$IDENTIFIER" 2>/dev/null || true
+    # 重置麦克风权限（如果需要）
+    tccutil reset Microphone "$IDENTIFIER" 2>/dev/null || true
+fi

-mkdir -p "$DEST"
-cp -R "/Library/Application Support/CrossDesk/certs/"* "$DEST/"
+# 为所有用户清除权限（可选，如果需要）
+# 遍历所有用户目录并清除权限
+for USER_DIR in /Users/*; do
+    if [ -d "$USER_DIR" ] && [ "$USER_DIR" != "/Users/Shared" ]; then
+        USER_NAME=$(basename "$USER_DIR")
+        # 跳过系统用户
+        if [ "$USER_NAME" != "Shared" ] && [ -d "$USER_DIR/Library" ]; then
+            # 删除 TCC 数据库中的相关条目（需要管理员权限）
+            TCC_DB="$USER_DIR/Library/Application Support/com.apple.TCC/TCC.db"
+            if [ -f "$TCC_DB" ]; then
+                # 使用 sqlite3 删除相关权限记录（如果可用）
+                if command -v sqlite3 >/dev/null 2>&1; then
+                    sqlite3 "$TCC_DB" "DELETE FROM access WHERE client='$IDENTIFIER' AND service IN ('kTCCServiceScreenCapture', 'kTCCServiceAccessibility');" 2>/dev/null || true
+                fi
+            fi
+        fi
+    fi
+done

 exit 0
 EOF

-chmod +x scripts/postinstall
-
-pkgbuild \
-  --root "${CERTS_SOURCE}" \
-  --identifier "${IDENTIFIER}.certs" \
-  --version "${APP_VERSION}" \
-  --install-location "/Library/Application Support/CrossDesk/certs" \
-  --scripts scripts \
-  build_pkg_temp/${APP_NAME}-certs.pkg
+chmod +x build_pkg_scripts/postinstall

 productbuild \
  --package build_pkg_temp/${APP_NAME}-component.pkg \
-  --package build_pkg_temp/${APP_NAME}-certs.pkg \
  "${PKG_NAME}"

 echo "PKG package created: ${PKG_NAME}"

-rm -rf build_pkg_temp scripts ${APP_BUNDLE}
+# Set custom icon for PKG file
+if [ -f "${ICON_PATH}" ]; then
+    echo "Setting custom icon for PKG file..."
+    # Create a temporary iconset from icns
+    TEMP_ICON_DIR=$(mktemp -d)
+    cp "${ICON_PATH}" "${TEMP_ICON_DIR}/icon.icns"
+    
+    # Use sips to create a png from icns for the icon
+    sips -s format png "${TEMP_ICON_DIR}/icon.icns" --out "${TEMP_ICON_DIR}/icon.png" 2>/dev/null || true
+    
+    # Method: Use osascript to set file icon (works on macOS)
+    osascript <<APPLESCRIPT
+use framework "Foundation"
+use framework "AppKit"
+
+set iconPath to POSIX file "${TEMP_ICON_DIR}/icon.icns"
+set targetPath to POSIX file "$(pwd)/${PKG_NAME}"
+
+set iconImage to current application's NSImage's alloc()'s initWithContentsOfFile:(POSIX path of iconPath)
+set workspace to current application's NSWorkspace's sharedWorkspace()
+workspace's setIcon:iconImage forFile:(POSIX path of targetPath) options:0
+APPLESCRIPT
+
+    if [ $? -eq 0 ]; then
+        echo "Custom icon set successfully for ${PKG_NAME}"
+    else
+        echo "Warning: Failed to set custom icon (this is optional)"
+    fi
+    
+    rm -rf "${TEMP_ICON_DIR}"
+fi
+echo "Set icon finished"
+
+rm -rf build_pkg_temp build_pkg_scripts ${APP_BUNDLE}

 echo "PKG package created successfully."
 echo "package ${APP_BUNDLE}"
--- a/scripts/windows/crossdesk.rc
+++ b/scripts/windows/crossdesk.rc
@@ -0,0 +1,2 @@
+// Application icon (IDI_ICON1 = 1, which is the default app icon resource ID)
+IDI_ICON1 ICON "..\\..\\icons\\windows\\crossdesk.ico"
--- a/scripts/windows/nsis_script.nsi
+++ b/scripts/windows/nsis_script.nsi
@@ -12,9 +12,6 @@
 ; Installer icon path
 !define MUI_ICON "${__FILEDIR__}\..\..\icons\windows\crossdesk.ico"

-; Certificate path
-!define CERT_FILE "${__FILEDIR__}\..\..\certs\crossdesk.cn_root.crt"
-
 ; Compression settings
 SetCompressor /FINAL lzma

@@ -49,7 +46,7 @@ ShowInstDetails show

 Section "MainSection"
    ; Check if CrossDesk is running
-    StrCpy $1 "crossdesk.exe"
+    StrCpy $1 "CrossDesk.exe"
    
    nsProcess::_FindProcess "$1"
    Pop $R0
@@ -75,10 +72,7 @@ installApp:
    SetOverwrite ifnewer

    ; Main application executable path
-    File /oname=crossdesk.exe "..\..\build\windows\x64\release\crossdesk.exe"
-    
-    ; Copy icon file to installation directory
-    File "${MUI_ICON}"
+    File /oname=CrossDesk.exe "..\..\build\windows\x64\release\crossdesk.exe"

    ; Write uninstall information
    WriteUninstaller "$INSTDIR\uninstall.exe"
@@ -88,33 +82,23 @@ installApp:
    WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "DisplayVersion" "${PRODUCT_VERSION}"
    WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "Publisher" "${PRODUCT_PUBLISHER}"
    WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "URLInfoAbout" "${PRODUCT_WEB_SITE}"
-    WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "DisplayIcon" "$INSTDIR\crossdesk.ico"
+    WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "DisplayIcon" "$INSTDIR\CrossDesk.exe"
    WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "NoModify" 1
    WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${UNINSTALL_REG_KEY}" "NoRepair" 1
    WriteRegStr HKCU "Software\${PRODUCT_NAME}" "InstallDir" "$INSTDIR"
 SectionEnd

-; After installation
-Section -Post
-    ExecWait '"C:\Program Files (x86)\Windows Kits\10\bin\10.0.26100.0\x86\mt.exe" -manifest "$INSTDIR\crossdesk.manifest" -outputresource:"$INSTDIR\crossdesk.exe";1'
-SectionEnd
-
-Section "Cert"
-    SetOutPath "$APPDATA\CrossDesk\certs"
-    File /r "${CERT_FILE}"
-SectionEnd
-
 Section -AdditionalIcons
    ; Desktop shortcut
-    CreateShortCut "$DESKTOP\${PRODUCT_NAME}.lnk" "$INSTDIR\crossdesk.exe" "" "$INSTDIR\crossdesk.ico"
+    CreateShortCut "$DESKTOP\${PRODUCT_NAME}.lnk" "$INSTDIR\CrossDesk.exe" "" "$INSTDIR\CrossDesk.exe"

    ; Start menu shortcut
-    CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}.lnk" "$INSTDIR\crossdesk.exe" "" "$INSTDIR\crossdesk.ico"
+    CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}.lnk" "$INSTDIR\CrossDesk.exe" "" "$INSTDIR\CrossDesk.exe"
 SectionEnd

 Section "Uninstall"
    ; Check if CrossDesk is running
-    StrCpy $1 "crossdesk.exe"
+    StrCpy $1 "CrossDesk.exe"
    
    nsProcess::_FindProcess "$1"
    Pop $R0
@@ -137,7 +121,7 @@ cancelUninstall:

 uninstallApp:
    ; Delete main executable and uninstaller
-    Delete "$INSTDIR\crossdesk.exe"
+    Delete "$INSTDIR\CrossDesk.exe"
    Delete "$INSTDIR\uninstall.exe"

    ; Recursively delete installation directory
@@ -160,5 +144,5 @@ SectionEnd

 ; ------ Functions ------
 Function LaunchApp
-    Exec "$INSTDIR\crossdesk.exe"
+    Exec "$INSTDIR\CrossDesk.exe"
 FunctionEnd
--- a/src/app/daemon.cpp
+++ b/src/app/daemon.cpp
@@ -34,9 +34,16 @@
 #endif

 #ifndef _WIN32
-Daemon* Daemon::instance_ = nullptr;
+volatile std::sig_atomic_t Daemon::stop_requested_ = 0;
 #endif

+namespace {
+constexpr int kRestartDelayMs = 1000;
+#ifndef _WIN32
+constexpr int kWaitPollIntervalMs = 200;
+#endif
+}  // namespace
+
 // get executable file path
 static std::string GetExecutablePath() {
 #ifdef _WIN32
@@ -66,33 +73,35 @@ static std::string GetExecutablePath() {
  return "";
 }

-Daemon::Daemon(const std::string& name)
-    : name_(name)
-#ifdef _WIN32
-      ,
-      running_(false)
-#else
-      ,
-      running_(true)
+Daemon::Daemon(const std::string& name) : name_(name), running_(false) {}
+
+void Daemon::stop() {
+  running_.store(false);
+#ifndef _WIN32
+  stop_requested_ = 1;
 #endif
-{
 }

-void Daemon::stop() { running_ = false; }
-
-bool Daemon::isRunning() const { return running_; }
+bool Daemon::isRunning() const {
+#ifndef _WIN32
+  return running_.load() && (stop_requested_ == 0);
+#else
+  return running_.load();
+#endif
+}

 bool Daemon::start(MainLoopFunc loop) {
 #ifdef _WIN32
-  running_ = true;
+  running_.store(true);
  return runWithRestart(loop);
 #elif __APPLE__
  // macOS: Use child process monitoring (like Windows) to preserve GUI
-  running_ = true;
+  stop_requested_ = 0;
+  running_.store(true);
  return runWithRestart(loop);
 #else
  // linux: Daemonize first, then run with restart monitoring
-  instance_ = this;
+  stop_requested_ = 0;

  // check if running from terminal before fork
  bool from_terminal =
@@ -134,29 +143,13 @@ bool Daemon::start(MainLoopFunc loop) {
  }

  // set up signal handlers
-  signal(SIGTERM, [](int) {
-    if (instance_) instance_->stop();
-  });
-  signal(SIGINT, [](int) {
-    if (instance_) instance_->stop();
-  });
+  signal(SIGTERM, [](int) { stop_requested_ = 1; });
+  signal(SIGINT, [](int) { stop_requested_ = 1; });

  // ignore SIGPIPE
  signal(SIGPIPE, SIG_IGN);

-  // set up SIGCHLD handler to reap zombie processes
-  struct sigaction sa_chld;
-  sa_chld.sa_handler = [](int) {
-    // reap zombie processes
-    while (waitpid(-1, nullptr, WNOHANG) > 0) {
-      // continue until no more zombie children
-    }
-  };
-  sigemptyset(&sa_chld.sa_mask);
-  sa_chld.sa_flags = SA_RESTART | SA_NOCLDSTOP;
-  sigaction(SIGCHLD, &sa_chld, nullptr);
-
-  running_ = true;
+  running_.store(true);
  return runWithRestart(loop);
 #endif
 }
@@ -204,8 +197,7 @@ bool Daemon::runWithRestart(MainLoopFunc loop) {
        restart_count++;
        std::cerr << "Exception caught, restarting... (attempt "
                  << restart_count << ")" << std::endl;
-        std::this_thread::sleep_for(
-            std::chrono::milliseconds(DAEMON_DEFAULT_RESTART_DELAY_MS));
+        std::this_thread::sleep_for(std::chrono::milliseconds(kRestartDelayMs));
      }
    }
    return true;
@@ -237,27 +229,41 @@ bool Daemon::runWithRestart(MainLoopFunc loop) {
    if (!success) {
      std::cerr << "Failed to create child process, error: " << GetLastError()
                << std::endl;
-      std::this_thread::sleep_for(
-          std::chrono::milliseconds(DAEMON_DEFAULT_RESTART_DELAY_MS));
+      std::this_thread::sleep_for(std::chrono::milliseconds(kRestartDelayMs));
      restart_count++;
      continue;
    }

+    while (isRunning()) {
+      DWORD wait_result = WaitForSingleObject(pi.hProcess, 200);
+      if (wait_result == WAIT_OBJECT_0) {
+        break;
+      }
+      if (wait_result == WAIT_FAILED) {
+        std::cerr << "Failed waiting child process, error: " << GetLastError()
+                  << std::endl;
+        break;
+      }
+    }
+
+    if (!isRunning()) {
+      TerminateProcess(pi.hProcess, 1);
+      WaitForSingleObject(pi.hProcess, 3000);
+    }
+
    DWORD exit_code = 0;
-    WaitForSingleObject(pi.hProcess, INFINITE);
    GetExitCodeProcess(pi.hProcess, &exit_code);
    CloseHandle(pi.hProcess);
    CloseHandle(pi.hThread);

-    if (exit_code == 0) {
+    if (!isRunning() || exit_code == 0) {
      break;  // normal exit
    }
    restart_count++;
    std::cerr << "Child process exited with code " << exit_code
              << ", restarting... (attempt " << restart_count << ")"
              << std::endl;
-    std::this_thread::sleep_for(
-        std::chrono::milliseconds(DAEMON_DEFAULT_RESTART_DELAY_MS));
+    std::this_thread::sleep_for(std::chrono::milliseconds(kRestartDelayMs));
 #else
    // linux: use fork + exec to create child process
    pid_t pid = fork();
@@ -266,21 +272,39 @@ bool Daemon::runWithRestart(MainLoopFunc loop) {
      _exit(1);  // exec failed
    } else if (pid > 0) {
      int status = 0;
-      pid_t waited_pid = waitpid(pid, &status, 0);
+      pid_t waited_pid = -1;
+      while (isRunning()) {
+        waited_pid = waitpid(pid, &status, WNOHANG);
+        if (waited_pid == pid) {
+          break;
+        }
+        if (waited_pid < 0 && errno != EINTR) {
+          break;
+        }
+        std::this_thread::sleep_for(
+            std::chrono::milliseconds(kWaitPollIntervalMs));
+      }
+
+      if (!isRunning() && waited_pid != pid) {
+        kill(pid, SIGTERM);
+        waited_pid = waitpid(pid, &status, 0);
+      }

      if (waited_pid < 0) {
+        if (!isRunning()) {
+          break;
+        }
        restart_count++;
        std::cerr << "waitpid failed, errno: " << errno
                  << ", restarting... (attempt " << restart_count << ")"
                  << std::endl;
-        std::this_thread::sleep_for(
-            std::chrono::milliseconds(DAEMON_DEFAULT_RESTART_DELAY_MS));
+        std::this_thread::sleep_for(std::chrono::milliseconds(kRestartDelayMs));
        continue;
      }

      if (WIFEXITED(status)) {
        int exit_code = WEXITSTATUS(status);
-        if (exit_code == 0) {
+        if (!isRunning() || exit_code == 0) {
          break;  // normal exit
        }
        restart_count++;
@@ -288,6 +312,9 @@ bool Daemon::runWithRestart(MainLoopFunc loop) {
                  << ", restarting... (attempt " << restart_count << ")"
                  << std::endl;
      } else if (WIFSIGNALED(status)) {
+        if (!isRunning()) {
+          break;
+        }
        restart_count++;
        std::cerr << "Child process crashed with signal " << WTERMSIG(status)
                  << ", restarting... (attempt " << restart_count << ")"
@@ -298,12 +325,10 @@ bool Daemon::runWithRestart(MainLoopFunc loop) {
                     "(attempt "
                  << restart_count << ")" << std::endl;
      }
-      std::this_thread::sleep_for(
-          std::chrono::milliseconds(DAEMON_DEFAULT_RESTART_DELAY_MS));
+      std::this_thread::sleep_for(std::chrono::milliseconds(kRestartDelayMs));
    } else {
      std::cerr << "Failed to fork child process" << std::endl;
-      std::this_thread::sleep_for(
-          std::chrono::milliseconds(DAEMON_DEFAULT_RESTART_DELAY_MS));
+      std::this_thread::sleep_for(std::chrono::milliseconds(kRestartDelayMs));
      restart_count++;
    }
 #endif
--- a/src/app/daemon.h
+++ b/src/app/daemon.h
@@ -7,11 +7,11 @@
 #ifndef _DAEMON_H_
 #define _DAEMON_H_

+#include <atomic>
+#include <csignal>
 #include <functional>
 #include <string>

-#define DAEMON_DEFAULT_RESTART_DELAY_MS 1000
-
 class Daemon {
 public:
  using MainLoopFunc = std::function<void()>;
@@ -28,12 +28,10 @@ class Daemon {
  std::string name_;
  bool runWithRestart(MainLoopFunc loop);

-#ifdef _WIN32
-  bool running_;
-#else
-  static Daemon* instance_;
-  volatile bool running_;
+#ifndef _WIN32
+  static volatile std::sig_atomic_t stop_requested_;
 #endif
+  std::atomic<bool> running_;
 };

-#endif
+#endif
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -35,11 +35,8 @@ int main(int argc, char* argv[]) {
  bool enable_daemon = false;
  auto path_manager = std::make_unique<crossdesk::PathManager>("CrossDesk");
  if (path_manager) {
-    std::string cert_path =
-        (path_manager->GetCertPath() / "crossdesk.cn_root.crt").string();
    std::string cache_path = path_manager->GetCachePath().string();
-    crossdesk::ConfigCenter config_center(cache_path + "/config.ini",
-                                          cert_path);
+    crossdesk::ConfigCenter config_center(cache_path + "/config.ini");
    enable_daemon = config_center.IsEnableDaemon();
  }

--- a/src/common/platform.cpp
+++ b/src/common/platform.cpp
@@ -108,7 +108,7 @@ std::string GetHostName() {
 #ifdef _WIN32
  WSADATA wsaData;
  if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
-    std::cerr << "WSAStartup failed." << std::endl;
+    LOG_ERROR("WSAStartup failed");
    return "";
  }
  if (gethostname(hostname, sizeof(hostname)) == SOCKET_ERROR) {
--- a/src/common/rounded_corner_button.cpp
+++ b/src/common/rounded_corner_button.cpp
@@ -0,0 +1,63 @@
+#include "rounded_corner_button.h"
+
+namespace crossdesk {
+bool RoundedCornerButton(const char* label, const ImVec2& size, float rounding,
+                         ImDrawFlags round_flags, bool enabled,
+                         ImU32 normal_col, ImU32 hover_col, ImU32 active_col,
+                         ImU32 border_col) {
+  ImGuiWindow* current_window = ImGui::GetCurrentWindow();
+  if (current_window->SkipItems) return false;
+
+  const ImGuiStyle& style = ImGui::GetStyle();
+
+  ImGuiID button_id = current_window->GetID(label);
+  ImVec2 cursor_pos = current_window->DC.CursorPos;
+  ImVec2 button_size = ImGui::CalcItemSize(size, 0.0f, 0.0f);
+  ImRect button_rect(cursor_pos, ImVec2(cursor_pos.x + button_size.x,
+                                        cursor_pos.y + button_size.y));
+  ImGui::ItemSize(button_rect);
+  if (!ImGui::ItemAdd(button_rect, button_id)) return false;
+
+  bool is_hovered = false, is_held = false;
+  bool is_pressed = false;
+  if (enabled) {
+    is_pressed =
+        ImGui::ButtonBehavior(button_rect, button_id, &is_hovered, &is_held);
+  }
+
+  if (normal_col == 0) normal_col = ImGui::GetColorU32(ImGuiCol_Button);
+  if (hover_col == 0) hover_col = ImGui::GetColorU32(ImGuiCol_ButtonHovered);
+  if (active_col == 0) active_col = ImGui::GetColorU32(ImGuiCol_ButtonActive);
+  if (border_col == 0) border_col = ImGui::GetColorU32(ImGuiCol_Border);
+
+  ImU32 fill_color = normal_col;
+  if (is_held && is_hovered)
+    fill_color = active_col;
+  else if (is_hovered)
+    fill_color = hover_col;
+
+  if (!enabled) fill_color = IM_COL32(120, 120, 120, 180);
+
+  ImDrawList* window_draw_list = ImGui::GetWindowDrawList();
+
+  window_draw_list->AddRectFilled(button_rect.Min, button_rect.Max, fill_color,
+                                  rounding, round_flags);
+
+  if (style.FrameBorderSize > 0.0f) {
+    window_draw_list->AddRect(button_rect.Min, button_rect.Max, border_col,
+                              rounding, round_flags, style.FrameBorderSize);
+  }
+
+  ImU32 text_color =
+      ImGui::GetColorU32(enabled ? ImGuiCol_Text : ImGuiCol_TextDisabled);
+
+  const char* label_end = ImGui::FindRenderedTextEnd(label);
+  ImGui::PushStyleColor(ImGuiCol_Text,
+                        ImGui::ColorConvertU32ToFloat4(text_color));
+  ImGui::RenderTextClipped(button_rect.Min, button_rect.Max, label, label_end,
+                           nullptr, ImVec2(0.5f, 0.5f), &button_rect);
+  ImGui::PopStyleColor();
+
+  return is_pressed;
+}
+}  // namespace crossdesk
--- a/src/common/rounded_corner_button.h
+++ b/src/common/rounded_corner_button.h
@@ -0,0 +1,20 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-02-26
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _ROUNDED_CORNER_BUTTON_H_
+#define _ROUNDED_CORNER_BUTTON_H_
+
+#include "imgui.h"
+#include "imgui_internal.h"
+
+namespace crossdesk {
+bool RoundedCornerButton(const char* label, const ImVec2& size, float rounding,
+                         ImDrawFlags round_flags, bool enabled = true,
+                         ImU32 normal_col = 0, ImU32 hover_col = 0,
+                         ImU32 active_col = 0, ImU32 border_col = 0);
+}  // namespace crossdesk
+
+#endif
--- a/src/common/window_util_mac.h
+++ b/src/common/window_util_mac.h
@@ -0,0 +1,25 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-01-20
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _WINDOW_UTIL_MAC_H_
+#define _WINDOW_UTIL_MAC_H_
+
+struct SDL_Window;
+
+namespace crossdesk {
+
+// Best-effort: keep an SDL window above normal windows on macOS.
+// No-op on non-macOS builds.
+void MacSetWindowAlwaysOnTop(::SDL_Window* window, bool always_on_top);
+
+// Best-effort: exclude an SDL window from the Window menu and window cycling.
+// Note: Cmd-Tab switches apps (not individual windows), so this primarily
+// affects the Window menu and Cmd-` window cycling.
+void MacSetWindowExcludedFromWindowMenu(::SDL_Window* window, bool excluded);
+
+}  // namespace crossdesk
+
+#endif
--- a/src/common/window_util_mac.mm
+++ b/src/common/window_util_mac.mm
@@ -0,0 +1,64 @@
+#include "window_util_mac.h"
+
+#if defined(__APPLE__)
+
+#include <SDL3/SDL.h>
+
+#import <Cocoa/Cocoa.h>
+
+namespace crossdesk {
+
+static NSWindow* GetNSWindowFromSDL(::SDL_Window* window) {
+  if (!window) {
+    return nil;
+  }
+
+#if !defined(SDL_PROP_WINDOW_COCOA_WINDOW_POINTER)
+  return nil;
+#else
+  SDL_PropertiesID props = SDL_GetWindowProperties(window);
+  void* cocoa_window_ptr =
+      SDL_GetPointerProperty(props, SDL_PROP_WINDOW_COCOA_WINDOW_POINTER, NULL);
+  if (!cocoa_window_ptr) {
+    return nil;
+  }
+  return (__bridge NSWindow*)cocoa_window_ptr;
+#endif
+}
+
+void MacSetWindowAlwaysOnTop(::SDL_Window* window, bool always_on_top) {
+  NSWindow* ns_window = GetNSWindowFromSDL(window);
+  if (!ns_window) {
+    (void)always_on_top;
+    return;
+  }
+
+  // Keep above normal windows.
+  const NSInteger level = always_on_top ? NSFloatingWindowLevel : NSNormalWindowLevel;
+  [ns_window setLevel:level];
+
+  // Optional: keep visible across Spaces/fullscreen. Safe as best-effort.
+  NSWindowCollectionBehavior behavior = [ns_window collectionBehavior];
+  behavior |= NSWindowCollectionBehaviorCanJoinAllSpaces;
+  behavior |= NSWindowCollectionBehaviorFullScreenAuxiliary;
+  [ns_window setCollectionBehavior:behavior];
+}
+
+void MacSetWindowExcludedFromWindowMenu(::SDL_Window* window, bool excluded) {
+  NSWindow* ns_window = GetNSWindowFromSDL(window);
+  if (!ns_window) {
+    (void)excluded;
+    return;
+  }
+
+  [ns_window setExcludedFromWindowsMenu:excluded];
+
+  NSWindowCollectionBehavior behavior = [ns_window collectionBehavior];
+  behavior |= NSWindowCollectionBehaviorIgnoresCycle;
+  behavior |= NSWindowCollectionBehaviorTransient;
+  [ns_window setCollectionBehavior:behavior];
+}
+
+}  // namespace crossdesk
+
+#endif  // __APPLE__
--- a/src/config_center/config_center.cpp
+++ b/src/config_center/config_center.cpp
@@ -5,11 +5,8 @@

 namespace crossdesk {

-ConfigCenter::ConfigCenter(const std::string& config_path,
-                           const std::string& cert_file_path)
-    : config_path_(config_path),
-      cert_file_path_(cert_file_path),
-      cert_file_path_default_(cert_file_path) {
+ConfigCenter::ConfigCenter(const std::string& config_path)
+    : config_path_(config_path) {
  ini_.SetUnicode(true);
  Load();
 }
@@ -23,8 +20,14 @@ int ConfigCenter::Load() {
    return -1;
  }

-  language_ = static_cast<LANGUAGE>(
-      ini_.GetLongValue(section_, "language", static_cast<long>(language_)));
+  const long language_value =
+      ini_.GetLongValue(section_, "language", static_cast<long>(language_));
+  if (language_value < static_cast<long>(LANGUAGE::CHINESE) ||
+      language_value > static_cast<long>(LANGUAGE::RUSSIAN)) {
+    language_ = LANGUAGE::ENGLISH;
+  } else {
+    language_ = static_cast<LANGUAGE>(language_value);
+  }

  video_quality_ = static_cast<VIDEO_QUALITY>(ini_.GetLongValue(
      section_, "video_quality", static_cast<long>(video_quality_)));
@@ -41,22 +44,51 @@ int ConfigCenter::Load() {

  enable_turn_ = ini_.GetBoolValue(section_, "enable_turn", enable_turn_);
  enable_srtp_ = ini_.GetBoolValue(section_, "enable_srtp", enable_srtp_);
-  signal_server_host_ = ini_.GetValue(section_, "signal_server_host",
-                                      signal_server_host_.c_str());
-  signal_server_port_ = static_cast<int>(
-      ini_.GetLongValue(section_, "signal_server_port", signal_server_port_));
-  coturn_server_port_ = static_cast<int>(
-      ini_.GetLongValue(section_, "coturn_server_port", coturn_server_port_));
-  cert_file_path_ =
-      ini_.GetValue(section_, "cert_file_path", cert_file_path_.c_str());
  enable_self_hosted_ =
      ini_.GetBoolValue(section_, "enable_self_hosted", enable_self_hosted_);
+
+  const char* signal_server_host_value =
+      ini_.GetValue(section_, "signal_server_host", nullptr);
+  if (signal_server_host_value != nullptr &&
+      strlen(signal_server_host_value) > 0) {
+    signal_server_host_ = signal_server_host_value;
+  } else {
+    signal_server_host_ = "";
+  }
+  const char* signal_server_port_value =
+      ini_.GetValue(section_, "signal_server_port", nullptr);
+  if (signal_server_port_value != nullptr &&
+      strlen(signal_server_port_value) > 0) {
+    signal_server_port_ =
+        static_cast<int>(ini_.GetLongValue(section_, "signal_server_port", 0));
+  } else {
+    signal_server_port_ = 0;
+  }
+  const char* coturn_server_port_value =
+      ini_.GetValue(section_, "coturn_server_port", nullptr);
+  if (coturn_server_port_value != nullptr &&
+      strlen(coturn_server_port_value) > 0) {
+    coturn_server_port_ =
+        static_cast<int>(ini_.GetLongValue(section_, "coturn_server_port", 0));
+  } else {
+    coturn_server_port_ = 0;
+  }
+
  enable_autostart_ =
      ini_.GetBoolValue(section_, "enable_autostart", enable_autostart_);
  enable_daemon_ = ini_.GetBoolValue(section_, "enable_daemon", enable_daemon_);
  enable_minimize_to_tray_ = ini_.GetBoolValue(
      section_, "enable_minimize_to_tray", enable_minimize_to_tray_);

+  const char* file_transfer_save_path_value =
+      ini_.GetValue(section_, "file_transfer_save_path", nullptr);
+  if (file_transfer_save_path_value != nullptr &&
+      strlen(file_transfer_save_path_value) > 0) {
+    file_transfer_save_path_ = file_transfer_save_path_value;
+  } else {
+    file_transfer_save_path_ = "";
+  }
+
  return 0;
 }

@@ -71,16 +103,25 @@ int ConfigCenter::Save() {
  ini_.SetBoolValue(section_, "hardware_video_codec", hardware_video_codec_);
  ini_.SetBoolValue(section_, "enable_turn", enable_turn_);
  ini_.SetBoolValue(section_, "enable_srtp", enable_srtp_);
-  ini_.SetValue(section_, "signal_server_host", signal_server_host_.c_str());
-  ini_.SetLongValue(section_, "signal_server_port",
-                    static_cast<long>(signal_server_port_));
-  ini_.SetValue(section_, "cert_file_path", cert_file_path_.c_str());
  ini_.SetBoolValue(section_, "enable_self_hosted", enable_self_hosted_);
+
+  // only save when self hosted
+  if (enable_self_hosted_) {
+    ini_.SetValue(section_, "signal_server_host", signal_server_host_.c_str());
+    ini_.SetLongValue(section_, "signal_server_port",
+                      static_cast<long>(signal_server_port_));
+    ini_.SetLongValue(section_, "coturn_server_port",
+                      static_cast<long>(coturn_server_port_));
+  }
+
  ini_.SetBoolValue(section_, "enable_autostart", enable_autostart_);
  ini_.SetBoolValue(section_, "enable_daemon", enable_daemon_);
  ini_.SetBoolValue(section_, "enable_minimize_to_tray",
                    enable_minimize_to_tray_);

+  ini_.SetValue(section_, "file_transfer_save_path",
+                file_transfer_save_path_.c_str());
+
  SI_Error rc = ini_.SaveFile(config_path_.c_str());
  if (rc < 0) {
    return -1;
@@ -197,19 +238,40 @@ int ConfigCenter::SetCoturnServerPort(int coturn_server_port) {
  return 0;
 }

-int ConfigCenter::SetCertFilePath(const std::string& cert_file_path) {
-  cert_file_path_ = cert_file_path;
-  ini_.SetValue(section_, "cert_file_path", cert_file_path_.c_str());
-  SI_Error rc = ini_.SaveFile(config_path_.c_str());
-  if (rc < 0) {
-    return -1;
-  }
-  return 0;
-}
-
 int ConfigCenter::SetSelfHosted(bool enable_self_hosted) {
  enable_self_hosted_ = enable_self_hosted;
  ini_.SetBoolValue(section_, "enable_self_hosted", enable_self_hosted_);
+
+  // load from config if self hosted is enabled
+  if (enable_self_hosted_) {
+    const char* signal_server_host_value =
+        ini_.GetValue(section_, "signal_server_host", nullptr);
+    if (signal_server_host_value != nullptr &&
+        strlen(signal_server_host_value) > 0) {
+      signal_server_host_ = signal_server_host_value;
+    }
+    const char* signal_server_port_value =
+        ini_.GetValue(section_, "signal_server_port", nullptr);
+    if (signal_server_port_value != nullptr &&
+        strlen(signal_server_port_value) > 0) {
+      signal_server_port_ = static_cast<int>(
+          ini_.GetLongValue(section_, "signal_server_port", 0));
+    }
+    const char* coturn_server_port_value =
+        ini_.GetValue(section_, "coturn_server_port", nullptr);
+    if (coturn_server_port_value != nullptr &&
+        strlen(coturn_server_port_value) > 0) {
+      coturn_server_port_ = static_cast<int>(
+          ini_.GetLongValue(section_, "coturn_server_port", 0));
+    }
+
+    ini_.SetValue(section_, "signal_server_host", signal_server_host_.c_str());
+    ini_.SetLongValue(section_, "signal_server_port",
+                      static_cast<long>(signal_server_port_));
+    ini_.SetLongValue(section_, "coturn_server_port",
+                      static_cast<long>(coturn_server_port_));
+  }
+
  SI_Error rc = ini_.SaveFile(config_path_.c_str());
  if (rc < 0) {
    return -1;
@@ -295,8 +357,6 @@ int ConfigCenter::GetSignalServerPort() const { return signal_server_port_; }

 int ConfigCenter::GetCoturnServerPort() const { return coturn_server_port_; }

-std::string ConfigCenter::GetCertFilePath() const { return cert_file_path_; }
-
 std::string ConfigCenter::GetDefaultServerHost() const {
  return signal_server_host_default_;
 }
@@ -309,10 +369,6 @@ int ConfigCenter::GetDefaultCoturnServerPort() const {
  return coturn_server_port_default_;
 }

-std::string ConfigCenter::GetDefaultCertFilePath() const {
-  return cert_file_path_default_;
-}
-
 bool ConfigCenter::IsSelfHosted() const { return enable_self_hosted_; }

 bool ConfigCenter::IsMinimizeToTray() const { return enable_minimize_to_tray_; }
@@ -320,4 +376,19 @@ bool ConfigCenter::IsMinimizeToTray() const { return enable_minimize_to_tray_; }
 bool ConfigCenter::IsEnableAutostart() const { return enable_autostart_; }

 bool ConfigCenter::IsEnableDaemon() const { return enable_daemon_; }
-}  // namespace crossdesk
+
+int ConfigCenter::SetFileTransferSavePath(const std::string& path) {
+  file_transfer_save_path_ = path;
+  ini_.SetValue(section_, "file_transfer_save_path",
+                file_transfer_save_path_.c_str());
+  SI_Error rc = ini_.SaveFile(config_path_.c_str());
+  if (rc < 0) {
+    return -1;
+  }
+  return 0;
+}
+
+std::string ConfigCenter::GetFileTransferSavePath() const {
+  return file_transfer_save_path_;
+}
+}  // namespace crossdesk
--- a/src/config_center/config_center.h
+++ b/src/config_center/config_center.h
@@ -15,15 +15,13 @@ namespace crossdesk {

 class ConfigCenter {
 public:
-  enum class LANGUAGE { CHINESE = 0, ENGLISH = 1 };
+  enum class LANGUAGE { CHINESE = 0, ENGLISH = 1, RUSSIAN = 2 };
  enum class VIDEO_QUALITY { LOW = 0, MEDIUM = 1, HIGH = 2 };
  enum class VIDEO_FRAME_RATE { FPS_30 = 0, FPS_60 = 1 };
  enum class VIDEO_ENCODE_FORMAT { H264 = 0, AV1 = 1 };

 public:
-  explicit ConfigCenter(
-      const std::string& config_path = "config.ini",
-      const std::string& cert_file_path = "crossdesk.cn_root.crt");
+  explicit ConfigCenter(const std::string& config_path = "config.ini");
  ~ConfigCenter();

  // write config
@@ -37,11 +35,11 @@ class ConfigCenter {
  int SetServerHost(const std::string& signal_server_host);
  int SetServerPort(int signal_server_port);
  int SetCoturnServerPort(int coturn_server_port);
-  int SetCertFilePath(const std::string& cert_file_path);
  int SetSelfHosted(bool enable_self_hosted);
  int SetMinimizeToTray(bool enable_minimize_to_tray);
  int SetAutostart(bool enable_autostart);
  int SetDaemon(bool enable_daemon);
+  int SetFileTransferSavePath(const std::string& path);

  // read config

@@ -55,43 +53,41 @@ class ConfigCenter {
  std::string GetSignalServerHost() const;
  int GetSignalServerPort() const;
  int GetCoturnServerPort() const;
-  std::string GetCertFilePath() const;
  std::string GetDefaultServerHost() const;
  int GetDefaultSignalServerPort() const;
  int GetDefaultCoturnServerPort() const;
-  std::string GetDefaultCertFilePath() const;
  bool IsSelfHosted() const;
  bool IsMinimizeToTray() const;
  bool IsEnableAutostart() const;
  bool IsEnableDaemon() const;
+  std::string GetFileTransferSavePath() const;

  int Load();
  int Save();

 private:
  std::string config_path_;
-  std::string cert_file_path_;
  CSimpleIniA ini_;
  const char* section_ = "Settings";

  LANGUAGE language_ = LANGUAGE::CHINESE;
-  VIDEO_QUALITY video_quality_ = VIDEO_QUALITY::MEDIUM;
+  VIDEO_QUALITY video_quality_ = VIDEO_QUALITY::HIGH;
  VIDEO_FRAME_RATE video_frame_rate_ = VIDEO_FRAME_RATE::FPS_60;
  VIDEO_ENCODE_FORMAT video_encode_format_ = VIDEO_ENCODE_FORMAT::H264;
  bool hardware_video_codec_ = false;
-  bool enable_turn_ = false;
+  bool enable_turn_ = true;
  bool enable_srtp_ = false;
-  std::string signal_server_host_ = "api.crossdesk.cn";
+  std::string signal_server_host_ = "";
  std::string signal_server_host_default_ = "api.crossdesk.cn";
-  int signal_server_port_ = 9099;
+  int signal_server_port_ = 0;
  int server_port_default_ = 9099;
-  int coturn_server_port_ = 3478;
+  int coturn_server_port_ = 0;
  int coturn_server_port_default_ = 3478;
-  std::string cert_file_path_default_ = "";
  bool enable_self_hosted_ = false;
  bool enable_minimize_to_tray_ = false;
  bool enable_autostart_ = false;
  bool enable_daemon_ = false;
+  std::string file_transfer_save_path_ = "";
 };
 }  // namespace crossdesk
-#endif
+#endif
--- a/src/device_controller/keyboard/linux/keyboard_capturer.cpp
+++ b/src/device_controller/keyboard/linux/keyboard_capturer.cpp
@@ -1,5 +1,8 @@
 #include "keyboard_capturer.h"

+#include <errno.h>
+#include <poll.h>
+
 #include "keyboard_converter.h"
 #include "rd_log.h"

@@ -10,7 +13,7 @@ static void* g_user_ptr = nullptr;

 static int KeyboardEventHandler(Display* display, XEvent* event) {
  if (event->xkey.type == KeyPress || event->xkey.type == KeyRelease) {
-    KeySym keySym = XKeycodeToKeysym(display, event->xkey.keycode, 0);
+    KeySym keySym = XLookupKeysym(&event->xkey, 0);
    int key_code = XKeysymToKeycode(display, keySym);
    bool is_key_down = (event->xkey.type == KeyPress);

@@ -21,7 +24,9 @@ static int KeyboardEventHandler(Display* display, XEvent* event) {
  return 0;
 }

-KeyboardCapturer::KeyboardCapturer() : display_(nullptr), running_(true) {
+KeyboardCapturer::KeyboardCapturer()
+    : display_(nullptr), root_(0), running_(false) {
+  XInitThreads();
  display_ = XOpenDisplay(nullptr);
  if (!display_) {
    LOG_ERROR("Failed to open X display.");
@@ -29,35 +34,87 @@ KeyboardCapturer::KeyboardCapturer() : display_(nullptr), running_(true) {
 }

 KeyboardCapturer::~KeyboardCapturer() {
+  Unhook();
+
  if (display_) {
    XCloseDisplay(display_);
+    display_ = nullptr;
  }
 }

 int KeyboardCapturer::Hook(OnKeyAction on_key_action, void* user_ptr) {
+  if (!display_) {
+    LOG_ERROR("Display not initialized.");
+    return -1;
+  }
+
  g_on_key_action = on_key_action;
  g_user_ptr = user_ptr;

-  XSelectInput(display_, DefaultRootWindow(display_),
-               KeyPressMask | KeyReleaseMask);
-
-  while (running_) {
-    XEvent event;
-    XNextEvent(display_, &event);
-    KeyboardEventHandler(display_, &event);
+  if (running_) {
+    return 0;
  }

+  root_ = DefaultRootWindow(display_);
+  XSelectInput(display_, root_, KeyPressMask | KeyReleaseMask);
+  XFlush(display_);
+
+  running_ = true;
+  const int x11_fd = ConnectionNumber(display_);
+  event_thread_ = std::thread([this, x11_fd]() {
+    while (running_) {
+      while (running_ && XPending(display_) > 0) {
+        XEvent event;
+        XNextEvent(display_, &event);
+        KeyboardEventHandler(display_, &event);
+      }
+
+      if (!running_) {
+        break;
+      }
+
+      struct pollfd pfd = {x11_fd, POLLIN, 0};
+      int poll_ret = poll(&pfd, 1, 50);
+      if (poll_ret < 0) {
+        if (errno == EINTR) {
+          continue;
+        }
+        LOG_ERROR("poll for X11 events failed.");
+        running_ = false;
+        break;
+      }
+
+      if (poll_ret == 0) {
+        continue;
+      }
+
+      if ((pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) != 0) {
+        LOG_ERROR("poll got invalid X11 event fd state.");
+        running_ = false;
+        break;
+      }
+
+      if ((pfd.revents & POLLIN) == 0) {
+        continue;
+      }
+    }
+  });
+
  return 0;
 }

 int KeyboardCapturer::Unhook() {
+  running_ = false;
+
+  if (event_thread_.joinable()) {
+    event_thread_.join();
+  }
+
  g_on_key_action = nullptr;
  g_user_ptr = nullptr;

-  running_ = false;
-
-  if (display_) {
-    XSelectInput(display_, DefaultRootWindow(display_), 0);
+  if (display_ && root_ != 0) {
+    XSelectInput(display_, root_, 0);
    XFlush(display_);
  }

--- a/src/device_controller/keyboard/linux/keyboard_capturer.h
+++ b/src/device_controller/keyboard/linux/keyboard_capturer.h
@@ -11,6 +11,9 @@
 #include <X11/extensions/XTest.h>
 #include <X11/keysym.h>

+#include <atomic>
+#include <thread>
+
 #include "device_controller.h"

 namespace crossdesk {
@@ -28,7 +31,8 @@ class KeyboardCapturer : public DeviceController {
 private:
  Display* display_;
  Window root_;
-  bool running_;
+  std::atomic<bool> running_;
+  std::thread event_thread_;
 };
 }  // namespace crossdesk
 #endif
--- a/src/gui/assets/fonts/OPPOSans_Regular.h
+++ b/src/gui/assets/fonts/OPPOSans_Regular.h
--- a/src/gui/assets/layouts/layout.h
+++ b/src/gui/assets/layouts/layout.h
@@ -7,71 +7,81 @@
 #ifndef _LAYOUT_STYLE_H_
 #define _LAYOUT_STYLE_H_

-#define MENU_WINDOW_WIDTH_CN 300
-#define MENU_WINDOW_HEIGHT_CN 280
-#define LOCAL_WINDOW_WIDTH_CN 300
-#define LOCAL_WINDOW_HEIGHT_CN 280
-#define REMOTE_WINDOW_WIDTH_CN 300
-#define REMOTE_WINDOW_HEIGHT_CN 280
-#define MENU_WINDOW_WIDTH_EN 190
-#define MENU_WINDOW_HEIGHT_EN 245
-#define IPUT_WINDOW_WIDTH 160
-#define INPUT_WINDOW_PADDING_CN 66
-#define INPUT_WINDOW_PADDING_EN 96
-#define SETTINGS_WINDOW_WIDTH_CN 202
-#define SETTINGS_WINDOW_WIDTH_EN 248
+#include "render.h"
+
+#define MENU_WINDOW_WIDTH_CN 300 * dpi_scale_
+#define MENU_WINDOW_HEIGHT_CN 280 * dpi_scale_
+#define LOCAL_WINDOW_WIDTH_CN 300 * dpi_scale_
+#define LOCAL_WINDOW_HEIGHT_CN 280 * dpi_scale_
+#define REMOTE_WINDOW_WIDTH_CN 300 * dpi_scale_
+#define REMOTE_WINDOW_HEIGHT_CN 280 * dpi_scale_
+#define MENU_WINDOW_WIDTH_EN 190 * dpi_scale_
+#define MENU_WINDOW_HEIGHT_EN 245 * dpi_scale_
+#define IPUT_WINDOW_WIDTH 160 * dpi_scale_
+#define INPUT_WINDOW_PADDING_CN 66 * dpi_scale_
+#define INPUT_WINDOW_PADDING_EN 96 * dpi_scale_
+#define SETTINGS_WINDOW_WIDTH_CN 202 * dpi_scale_
+#define SETTINGS_WINDOW_WIDTH_EN 248 * dpi_scale_
 #if USE_CUDA
 #if _WIN32
-#define SETTINGS_WINDOW_HEIGHT_CN 405
-#define SETTINGS_WINDOW_HEIGHT_EN 405
+#define SETTINGS_WINDOW_HEIGHT_CN 405 * dpi_scale_
+#define SETTINGS_WINDOW_HEIGHT_EN 405 * dpi_scale_
 #else
-#define SETTINGS_WINDOW_HEIGHT_CN 375
-#define SETTINGS_WINDOW_HEIGHT_EN 375
+#define SETTINGS_WINDOW_HEIGHT_CN 375 * dpi_scale_
+#define SETTINGS_WINDOW_HEIGHT_EN 375 * dpi_scale_
 #endif
 #else
 #if _WIN32
-#define SETTINGS_WINDOW_HEIGHT_CN 375
-#define SETTINGS_WINDOW_HEIGHT_EN 375
+#define SETTINGS_WINDOW_HEIGHT_CN 375 * dpi_scale_
+#define SETTINGS_WINDOW_HEIGHT_EN 375 * dpi_scale_
 #else
-#define SETTINGS_WINDOW_HEIGHT_CN 345
-#define SETTINGS_WINDOW_HEIGHT_EN 345
+#define SETTINGS_WINDOW_HEIGHT_CN 345 * dpi_scale_
+#define SETTINGS_WINDOW_HEIGHT_EN 345 * dpi_scale_
 #endif
 #endif
-#define SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_CN 228
-#define SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_EN 275
-#define SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_CN 195
-#define SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_EN 195
-#define LANGUAGE_SELECT_WINDOW_PADDING_CN 120
-#define LANGUAGE_SELECT_WINDOW_PADDING_EN 167
-#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 120
-#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 167
-#define VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_CN 120
-#define VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_EN 167
-#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 120
-#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 167
-#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN 171
-#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN 218
-#define ENABLE_TURN_CHECKBOX_PADDING_CN 171
-#define ENABLE_TURN_CHECKBOX_PADDING_EN 218
-#define ENABLE_SRTP_CHECKBOX_PADDING_CN 171
-#define ENABLE_SRTP_CHECKBOX_PADDING_EN 218
-#define ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_CN 171
-#define ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_EN 218
-#define ENABLE_AUTOSTART_PADDING_CN 171
-#define ENABLE_AUTOSTART_PADDING_EN 218
-#define ENABLE_DAEMON_PADDING_CN 171
-#define ENABLE_DAEMON_PADDING_EN 218
-#define ENABLE_MINIZE_TO_TRAY_PADDING_CN 171
-#define ENABLE_MINIZE_TO_TRAY_PADDING_EN 218
-#define SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_CN 90
-#define SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_EN 137
-#define SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_CN 90
-#define SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_EN 137
-#define SETTINGS_SELECT_WINDOW_WIDTH 73
-#define SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH 130
-#define SETTINGS_OK_BUTTON_PADDING_CN 65
-#define SETTINGS_OK_BUTTON_PADDING_EN 83
-#define SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_CN 78
-#define SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_EN 91
-
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_CN 228 * dpi_scale_
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_EN 275 * dpi_scale_
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_CN 195 * dpi_scale_
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_EN 195 * dpi_scale_
+#define LANGUAGE_SELECT_WINDOW_PADDING_CN 120 * dpi_scale_
+#define LANGUAGE_SELECT_WINDOW_PADDING_EN 167 * dpi_scale_
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 120 * dpi_scale_
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 167 * dpi_scale_
+#define VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_CN 120 * dpi_scale_
+#define VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_EN 167 * dpi_scale_
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 120 * dpi_scale_
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 167 * dpi_scale_
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN 171 * dpi_scale_
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN 218 * dpi_scale_
+#define ENABLE_TURN_CHECKBOX_PADDING_CN 171 * dpi_scale_
+#define ENABLE_TURN_CHECKBOX_PADDING_EN 218 * dpi_scale_
+#define ENABLE_SRTP_CHECKBOX_PADDING_CN 171 * dpi_scale_
+#define ENABLE_SRTP_CHECKBOX_PADDING_EN 218 * dpi_scale_
+#define ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_CN 171 * dpi_scale_
+#define ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_EN 218 * dpi_scale_
+#define ENABLE_AUTOSTART_PADDING_CN 171 * dpi_scale_
+#define ENABLE_AUTOSTART_PADDING_EN 218 * dpi_scale_
+#define ENABLE_DAEMON_PADDING_CN 171 * dpi_scale_
+#define ENABLE_DAEMON_PADDING_EN 218 * dpi_scale_
+#define ENABLE_MINIZE_TO_TRAY_PADDING_CN 171 * dpi_scale_
+#define ENABLE_MINIZE_TO_TRAY_PADDING_EN 218 * dpi_scale_
+#define SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_CN 90 * dpi_scale_
+#define SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_EN 137 * dpi_scale_
+#define SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_CN 90 * dpi_scale_
+#define SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_EN 137 * dpi_scale_
+#define SETTINGS_SELECT_WINDOW_WIDTH 73 * dpi_scale_
+#define SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH 130 * dpi_scale_
+#define SETTINGS_OK_BUTTON_PADDING_CN 65 * dpi_scale_
+#define SETTINGS_OK_BUTTON_PADDING_EN 83 * dpi_scale_
+#define SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_CN 78 * dpi_scale_
+#define SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_EN 91 * dpi_scale_
+#define UPDATE_NOTIFICATION_OK_BUTTON_PADDING_CN 162 * dpi_scale_
+#define UPDATE_NOTIFICATION_OK_BUTTON_PADDING_EN 146 * dpi_scale_
+#define UPDATE_NOTIFICATION_RESERVED_HEIGHT 120 * dpi_scale_
+#define REQUEST_PERMISSION_WINDOW_WIDTH_CN 130 * dpi_scale_
+#define REQUEST_PERMISSION_WINDOW_HEIGHT_CN 125 * dpi_scale_
+#define REQUEST_PERMISSION_WINDOW_WIDTH_EN 260 * dpi_scale_
+#define REQUEST_PERMISSION_WINDOW_HEIGHT_EN 125 * dpi_scale_
+#define REQUEST_PERMISSION_WINDOW_CHECKBOX_PADDING_CN 90 * dpi_scale_
+#define REQUEST_PERMISSION_WINDOW_CHECKBOX_PADDING_EN 210 * dpi_scale_
 #endif
--- a/src/gui/assets/layouts/layout_relative.h
+++ b/src/gui/assets/layouts/layout_relative.h
@@ -0,0 +1,91 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-06-14
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _LAYOUT_STYLE_H_
+#define _LAYOUT_STYLE_H_
+
+#include "render.h"
+
+#define TITLE_BAR_HEIGHT 0.0625f
+#define TITLE_BAR_BUTTON_WIDTH 0.0625f
+#define TITLE_BAR_BUTTON_HEIGHT 0.0625f
+#define STATUS_BAR_HEIGHT 0.05f
+#define MENU_WINDOW_WIDTH_CN 300
+#define MENU_WINDOW_HEIGHT_CN 280
+#define LOCAL_WINDOW_WIDTH_CN 300
+#define LOCAL_WINDOW_HEIGHT_CN 280
+#define REMOTE_WINDOW_WIDTH_CN 300
+#define REMOTE_WINDOW_HEIGHT_CN 280
+#define MENU_WINDOW_WIDTH_EN 190
+#define MENU_WINDOW_HEIGHT_EN 245
+#define IPUT_WINDOW_WIDTH 160
+#define INPUT_WINDOW_PADDING_CN 66
+#define INPUT_WINDOW_PADDING_EN 96
+#define SETTINGS_WINDOW_WIDTH_CN 202
+#define SETTINGS_WINDOW_WIDTH_EN 248
+#if USE_CUDA
+#if _WIN32
+#define SETTINGS_WINDOW_HEIGHT_CN 405
+#define SETTINGS_WINDOW_HEIGHT_EN 405
+#else
+#define SETTINGS_WINDOW_HEIGHT_CN 375
+#define SETTINGS_WINDOW_HEIGHT_EN 375
+#endif
+#else
+#if _WIN32
+#define SETTINGS_WINDOW_HEIGHT_CN 375
+#define SETTINGS_WINDOW_HEIGHT_EN 375
+#else
+#define SETTINGS_WINDOW_HEIGHT_CN 345
+#define SETTINGS_WINDOW_HEIGHT_EN 345
+#endif
+#endif
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_CN 228
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_EN 275
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_CN 195
+#define SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_EN 195
+#define LANGUAGE_SELECT_WINDOW_PADDING_CN 120
+#define LANGUAGE_SELECT_WINDOW_PADDING_EN 167
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 120
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 167
+#define VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_CN 120
+#define VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_EN 167
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 120
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 167
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN 171
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN 218
+#define ENABLE_TURN_CHECKBOX_PADDING_CN 171
+#define ENABLE_TURN_CHECKBOX_PADDING_EN 218
+#define ENABLE_SRTP_CHECKBOX_PADDING_CN 171
+#define ENABLE_SRTP_CHECKBOX_PADDING_EN 218
+#define ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_CN 171
+#define ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_EN 218
+#define ENABLE_AUTOSTART_PADDING_CN 171
+#define ENABLE_AUTOSTART_PADDING_EN 218
+#define ENABLE_DAEMON_PADDING_CN 171
+#define ENABLE_DAEMON_PADDING_EN 218
+#define ENABLE_MINIZE_TO_TRAY_PADDING_CN 171
+#define ENABLE_MINIZE_TO_TRAY_PADDING_EN 218
+#define SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_CN 90
+#define SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_EN 137
+#define SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_CN 90
+#define SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_EN 137
+#define SETTINGS_SELECT_WINDOW_WIDTH 73
+#define SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH 130
+#define SETTINGS_OK_BUTTON_PADDING_CN 65
+#define SETTINGS_OK_BUTTON_PADDING_EN 83
+#define SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_CN 78
+#define SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_EN 91
+#define UPDATE_NOTIFICATION_OK_BUTTON_PADDING_CN 162
+#define UPDATE_NOTIFICATION_OK_BUTTON_PADDING_EN 146
+#define UPDATE_NOTIFICATION_RESERVED_HEIGHT 120
+#define REQUEST_PERMISSION_WINDOW_WIDTH_CN 130
+#define REQUEST_PERMISSION_WINDOW_HEIGHT_CN 125
+#define REQUEST_PERMISSION_WINDOW_WIDTH_EN 260
+#define REQUEST_PERMISSION_WINDOW_HEIGHT_EN 125
+#define REQUEST_PERMISSION_WINDOW_CHECKBOX_PADDING_CN 90
+#define REQUEST_PERMISSION_WINDOW_CHECKBOX_PADDING_EN 210
+#endif
--- a/src/gui/assets/localization/localization.h
+++ b/src/gui/assets/localization/localization.h
@@ -1,187 +1,156 @@
-/*
- * @Author: DI JUNKUN
- * @Date: 2024-05-29
- * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
- */
-#ifndef _LOCALIZATION_H_
-#define _LOCALIZATION_H_
-
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-05-29
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+#ifndef _LOCALIZATION_H_
+#define _LOCALIZATION_H_
+
 #include <string>
+#include <unordered_map>
 #include <vector>

+#include "localization_data.h"
+
 #if _WIN32
 #include <Windows.h>
 #endif
+
+namespace crossdesk {
+namespace localization {
+
+struct LanguageOption {
+  std::string code;
+  std::string display_name;
+};

-namespace crossdesk {
+class LocalizedString {
+ public:
+  constexpr explicit LocalizedString(const char* key) : key_(key) {}
+  const std::string& operator[](int language_index) const;
+
+ private:
+  const char* key_;
+};
+
+inline const std::vector<LanguageOption>& GetSupportedLanguages() {
+  static const std::vector<LanguageOption> kSupportedLanguages = {
+      {"zh-CN", reinterpret_cast<const char*>(u8"中文")},
+      {"en-US", "English"},
+      {"ru-RU", reinterpret_cast<const char*>(u8"Русский")}};
+  return kSupportedLanguages;
+}
+
+namespace detail {

-namespace localization {
+inline int ClampLanguageIndex(int language_index) {
+  if (language_index >= 0 &&
+      language_index < static_cast<int>(GetSupportedLanguages().size())) {
+    return language_index;
+  }
+  return 0;
+}

-static std::vector<std::string> local_desktop = {
-    reinterpret_cast<const char*>(u8"本桌面"), "Local Desktop"};
-static std::vector<std::string> local_id = {
-    reinterpret_cast<const char*>(u8"本机ID"), "Local ID"};
-static std::vector<std::string> local_id_copied_to_clipboard = {
-    reinterpret_cast<const char*>(u8"已复制到剪贴板"), "Copied to clipboard"};
-static std::vector<std::string> password = {
-    reinterpret_cast<const char*>(u8"密码"), "Password"};
-static std::vector<std::string> max_password_len = {
-    reinterpret_cast<const char*>(u8"最大6个字符"), "Max 6 chars"};
+using TranslationTable =
+    std::unordered_map<std::string,
+                       std::unordered_map<std::string, std::string>>;

-static std::vector<std::string> remote_desktop = {
-    reinterpret_cast<const char*>(u8"控制远程桌面"), "Control Remote Desktop"};
-static std::vector<std::string> remote_id = {
-    reinterpret_cast<const char*>(u8"对端ID"), "Remote ID"};
-static std::vector<std::string> connect = {
-    reinterpret_cast<const char*>(u8"连接"), "Connect"};
-static std::vector<std::string> recent_connections = {
-    reinterpret_cast<const char*>(u8"近期连接"), "Recent Connections"};
-static std::vector<std::string> disconnect = {
-    reinterpret_cast<const char*>(u8"断开连接"), "Disconnect"};
-static std::vector<std::string> fullscreen = {
-    reinterpret_cast<const char*>(u8"全屏"), " Fullscreen"};
-static std::vector<std::string> show_net_traffic_stats = {
-    reinterpret_cast<const char*>(u8"显示流量统计"), "Show Net Traffic Stats"};
-static std::vector<std::string> hide_net_traffic_stats = {
-    reinterpret_cast<const char*>(u8"隐藏流量统计"), "Hide Net Traffic Stats"};
-static std::vector<std::string> video = {
-    reinterpret_cast<const char*>(u8"视频"), "Video"};
-static std::vector<std::string> audio = {
-    reinterpret_cast<const char*>(u8"音频"), "Audio"};
-static std::vector<std::string> data = {reinterpret_cast<const char*>(u8"数据"),
-                                        "Data"};
-static std::vector<std::string> total = {
-    reinterpret_cast<const char*>(u8"总计"), "Total"};
-static std::vector<std::string> in = {reinterpret_cast<const char*>(u8"输入"),
-                                      "In"};
-static std::vector<std::string> out = {reinterpret_cast<const char*>(u8"输出"),
-                                       "Out"};
-static std::vector<std::string> loss_rate = {
-    reinterpret_cast<const char*>(u8"丢包率"), "Loss Rate"};
-static std::vector<std::string> exit_fullscreen = {
-    reinterpret_cast<const char*>(u8"退出全屏"), "Exit fullscreen"};
-static std::vector<std::string> control_mouse = {
-    reinterpret_cast<const char*>(u8"控制"), "Control"};
-static std::vector<std::string> release_mouse = {
-    reinterpret_cast<const char*>(u8"释放"), "Release"};
-static std::vector<std::string> audio_capture = {
-    reinterpret_cast<const char*>(u8"声音"), "Audio"};
-static std::vector<std::string> mute = {
-    reinterpret_cast<const char*>(u8" 静音"), " Mute"};
-static std::vector<std::string> settings = {
-    reinterpret_cast<const char*>(u8"设置"), "Settings"};
-static std::vector<std::string> language = {
-    reinterpret_cast<const char*>(u8"语言:"), "Language:"};
-static std::vector<std::string> language_zh = {
-    reinterpret_cast<const char*>(u8"中文"), "Chinese"};
-static std::vector<std::string> language_en = {
-    reinterpret_cast<const char*>(u8"英文"), "English"};
-static std::vector<std::string> video_quality = {
-    reinterpret_cast<const char*>(u8"视频质量:"), "Video Quality:"};
-static std::vector<std::string> video_frame_rate = {
-    reinterpret_cast<const char*>(u8"画面采集帧率:"),
-    "Video Capture Frame Rate:"};
-static std::vector<std::string> video_quality_high = {
-    reinterpret_cast<const char*>(u8"高"), "High"};
-static std::vector<std::string> video_quality_medium = {
-    reinterpret_cast<const char*>(u8"中"), "Medium"};
-static std::vector<std::string> video_quality_low = {
-    reinterpret_cast<const char*>(u8"低"), "Low"};
-static std::vector<std::string> video_encode_format = {
-    reinterpret_cast<const char*>(u8"视频编码格式:"), "Video Encode Format:"};
-static std::vector<std::string> av1 = {reinterpret_cast<const char*>(u8"AV1"),
-                                       "AV1"};
-static std::vector<std::string> h264 = {
-    reinterpret_cast<const char*>(u8"H.264"), "H.264"};
-static std::vector<std::string> enable_hardware_video_codec = {
-    reinterpret_cast<const char*>(u8"启用硬件编解码器:"),
-    "Enable Hardware Video Codec:"};
-static std::vector<std::string> enable_turn = {
-    reinterpret_cast<const char*>(u8"启用中继服务:"), "Enable TURN Service:"};
-static std::vector<std::string> enable_srtp = {
-    reinterpret_cast<const char*>(u8"启用SRTP:"), "Enable SRTP:"};
-static std::vector<std::string> self_hosted_server_config = {
-    reinterpret_cast<const char*>(u8"自托管服务器配置"),
-    "Self-Hosted Server Config"};
-static std::vector<std::string> self_hosted_server_settings = {
-    reinterpret_cast<const char*>(u8"自托管服务器设置"),
-    "Self-Hosted Server Settings"};
-static std::vector<std::string> self_hosted_server_address = {
-    reinterpret_cast<const char*>(u8"服务器地址:"), "Server Address:"};
-static std::vector<std::string> self_hosted_server_port = {
-    reinterpret_cast<const char*>(u8"信令服务端口:"), "Signal Service Port:"};
-static std::vector<std::string> self_hosted_server_coturn_server_port = {
-    reinterpret_cast<const char*>(u8"中继服务端口:"), "Relay Service Port:"};
-static std::vector<std::string> self_hosted_server_certificate_path = {
-    reinterpret_cast<const char*>(u8"证书文件路径:"), "Certificate File Path:"};
-static std::vector<std::string> select_a_file = {
-    reinterpret_cast<const char*>(u8"请选择文件"), "Please select a file"};
-static std::vector<std::string> ok = {reinterpret_cast<const char*>(u8"确认"),
-                                      "OK"};
-static std::vector<std::string> cancel = {
-    reinterpret_cast<const char*>(u8"取消"), "Cancel"};
+inline std::unordered_map<std::string, std::string> MakeLocalizedValues(
+    const TranslationRow& row) {
+  return {{"zh-CN", reinterpret_cast<const char*>(row.zh)},
+          {"en-US", row.en},
+          {"ru-RU", reinterpret_cast<const char*>(row.ru)}};
+}

-static std::vector<std::string> new_password = {
-    reinterpret_cast<const char*>(u8"请输入六位密码:"),
-    "Please input a six-char password:"};
+inline TranslationTable BuildTranslationTable() {
+  TranslationTable table;
+  for (const auto& row : kTranslationRows) {
+    table[row.key] = MakeLocalizedValues(row);
+  }

-static std::vector<std::string> input_password = {
-    reinterpret_cast<const char*>(u8"请输入密码:"), "Please input password:"};
-static std::vector<std::string> validate_password = {
-    reinterpret_cast<const char*>(u8"验证密码中..."), "Validate password ..."};
-static std::vector<std::string> reinput_password = {
-    reinterpret_cast<const char*>(u8"请重新输入密码"),
-    "Please input password again"};
-
-static std::vector<std::string> remember_password = {
-    reinterpret_cast<const char*>(u8"记住密码"), "Remember password"};
-
-static std::vector<std::string> signal_connected = {
-    reinterpret_cast<const char*>(u8"已连接服务器"), "Connected"};
-static std::vector<std::string> signal_disconnected = {
-    reinterpret_cast<const char*>(u8"未连接服务器"), "Disconnected"};
-
-static std::vector<std::string> p2p_connected = {
-    reinterpret_cast<const char*>(u8"对等连接已建立"), "P2P Connected"};
-static std::vector<std::string> p2p_disconnected = {
-    reinterpret_cast<const char*>(u8"对等连接已断开"), "P2P Disconnected"};
-static std::vector<std::string> p2p_connecting = {
-    reinterpret_cast<const char*>(u8"正在建立对等连接..."),
-    "P2P Connecting ..."};
-static std::vector<std::string> p2p_failed = {
-    reinterpret_cast<const char*>(u8"对等连接失败"), "P2P Failed"};
-static std::vector<std::string> p2p_closed = {
-    reinterpret_cast<const char*>(u8"对等连接已关闭"), "P2P closed"};
-
-static std::vector<std::string> no_such_id = {
-    reinterpret_cast<const char*>(u8"无此ID"), "No such ID"};
-
-static std::vector<std::string> about = {
-    reinterpret_cast<const char*>(u8"关于"), "About"};
-static std::vector<std::string> new_version_available = {
-    reinterpret_cast<const char*>(u8"新版本可用"), "New Version Available"};
-static std::vector<std::string> version = {
-    reinterpret_cast<const char*>(u8"版本"), "Version"};
-static std::vector<std::string> access_website = {
-    reinterpret_cast<const char*>(u8"访问官网: "), "Access Website: "};
-
-static std::vector<std::string> confirm_delete_connection = {
-    reinterpret_cast<const char*>(u8"确认删除此连接"),
-    "Confirm to delete this connection"};
-
-static std::vector<std::string> enable_autostart = {
-    reinterpret_cast<const char*>(u8"开机自启:"), "Auto Start:"};
-static std::vector<std::string> enable_daemon = {
-    reinterpret_cast<const char*>(u8"启用守护进程:"), "Enable Daemon:"};
-static std::vector<std::string> takes_effect_after_restart = {
-    reinterpret_cast<const char*>(u8"重启后生效"),
-    "Takes effect after restart"};
-#if _WIN32
-static std::vector<std::string> minimize_to_tray = {
-    reinterpret_cast<const char*>(u8"退出时最小化到系统托盘:"),
-    "Minimize to system tray when exit:"};
-static std::vector<LPCWSTR> exit_program = {L"退出", L"Exit"};
-#endif
-}  // namespace localization
-}  // namespace crossdesk
-#endif
+  return table;
+}
+
+inline const TranslationTable& GetTranslationTable() {
+  static const TranslationTable table = BuildTranslationTable();
+  return table;
+}
+
+inline const std::string& GetTranslatedText(const std::string& key,
+                                            int language_index) {
+  static const std::string kEmptyText = "";
+
+  const auto& table = GetTranslationTable();
+  const auto key_it = table.find(key);
+  if (key_it == table.end()) {
+    return kEmptyText;
+  }
+
+  const auto& localized_values = key_it->second;
+  const std::string& language_code =
+      GetSupportedLanguages()[ClampLanguageIndex(language_index)].code;
+
+  const auto exact_it = localized_values.find(language_code);
+  if (exact_it != localized_values.end()) {
+    return exact_it->second;
+  }
+
+  const auto english_it = localized_values.find("en-US");
+  if (english_it != localized_values.end()) {
+    return english_it->second;
+  }
+
+  const auto chinese_it = localized_values.find("zh-CN");
+  if (chinese_it != localized_values.end()) {
+    return chinese_it->second;
+  }
+
+  return kEmptyText;
+}
+
+}  // namespace detail
+
+inline const std::string& LocalizedString::operator[](
+    int language_index) const {
+  return detail::GetTranslatedText(key_, language_index);
+}
+
+#define CROSSDESK_DECLARE_LOCALIZED_STRING(name, zh, en, ru) \
+  inline const LocalizedString name(#name);
+CROSSDESK_LOCALIZATION_ALL(CROSSDESK_DECLARE_LOCALIZED_STRING)
+#undef CROSSDESK_DECLARE_LOCALIZED_STRING
+
+#if _WIN32
+inline const wchar_t* GetExitProgramLabel(int language_index) {
+  static std::vector<std::wstring> cache(GetSupportedLanguages().size());
+  const int normalized_index = detail::ClampLanguageIndex(language_index);
+  std::wstring& cached_text = cache[normalized_index];
+  if (!cached_text.empty()) {
+    return cached_text.c_str();
+  }
+
+  const std::string& utf8_text =
+      detail::GetTranslatedText("exit_program", normalized_index);
+  if (utf8_text.empty()) {
+    cached_text = L"Exit";
+    return cached_text.c_str();
+  }
+
+  int wide_length =
+      MultiByteToWideChar(CP_UTF8, 0, utf8_text.c_str(), -1, nullptr, 0);
+  if (wide_length <= 0) {
+    cached_text = L"Exit";
+    return cached_text.c_str();
+  }
+
+  cached_text.resize(static_cast<size_t>(wide_length - 1));
+  MultiByteToWideChar(CP_UTF8, 0, utf8_text.c_str(), -1, cached_text.data(),
+                      wide_length);
+  return cached_text.c_str();
+}
+#endif
+
+}  // namespace localization
+}  // namespace crossdesk
+
+#endif
--- a/src/gui/assets/localization/localization_data.h
+++ b/src/gui/assets/localization/localization_data.h
@@ -0,0 +1,166 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-05-29
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+#ifndef _LOCALIZATION_DATA_H_
+#define _LOCALIZATION_DATA_H_
+
+namespace crossdesk {
+namespace localization {
+
+namespace detail {
+
+struct TranslationRow {
+  const char* key;
+  const char* zh;
+  const char* en;
+  const char* ru;
+};
+
+// Single source of truth for all UI strings.
+#define CROSSDESK_LOCALIZATION_ALL(X)                                          \
+  X(local_desktop, u8"本桌面", "Local Desktop", u8"Локальный рабочий стол")    \
+  X(local_id, u8"本机ID", "Local ID", u8"Локальный ID")                        \
+  X(local_id_copied_to_clipboard, u8"已复制到剪贴板", "Copied to clipboard",   \
+    u8"Скопировано в буфер обмена")                                            \
+  X(password, u8"密码", "Password", u8"Пароль")                                \
+  X(max_password_len, u8"最大6个字符", "Max 6 chars", u8"Макс. 6 символов")    \
+  X(remote_desktop, u8"远程桌面", "Remote Desktop",                            \
+    u8"Удаленный рабочий стол")                                                \
+  X(remote_id, u8"对端ID", "Remote ID", u8"Удаленный ID")                      \
+  X(connect, u8"连接", "Connect", u8"Подключиться")                            \
+  X(recent_connections, u8"近期连接", "Recent Connections",                    \
+    u8"Недавние подключения")                                                  \
+  X(disconnect, u8"断开连接", "Disconnect", u8"Отключить")                     \
+  X(fullscreen, u8"全屏", " Fullscreen", u8"Полный экран")                     \
+  X(show_net_traffic_stats, u8"显示流量统计", "Show Net Traffic Stats",        \
+    u8"Показать статистику трафика")                                           \
+  X(hide_net_traffic_stats, u8"隐藏流量统计", "Hide Net Traffic Stats",        \
+    u8"Скрыть статистику трафика")                                             \
+  X(video, u8"视频", "Video", u8"Видео")                                       \
+  X(audio, u8"音频", "Audio", u8"Аудио")                                       \
+  X(data, u8"数据", "Data", u8"Данные")                                        \
+  X(total, u8"总计", "Total", u8"Итого")                                       \
+  X(in, u8"输入", "In", u8"Вход")                                              \
+  X(out, u8"输出", "Out", u8"Выход")                                           \
+  X(loss_rate, u8"丢包率", "Loss Rate", u8"Потери пакетов")                    \
+  X(exit_fullscreen, u8"退出全屏", "Exit fullscreen",                          \
+    u8"Выйти из полноэкранного режима")                                        \
+  X(control_mouse, u8"控制", "Control", u8"Управление")                        \
+  X(release_mouse, u8"释放", "Release", u8"Освободить")                        \
+  X(audio_capture, u8"声音", "Audio", u8"Звук")                                \
+  X(mute, u8" 静音", " Mute", u8"Без звука")                                   \
+  X(settings, u8"设置", "Settings", u8"Настройки")                             \
+  X(language, u8"语言:", "Language:", u8"Язык:")                               \
+  X(video_quality, u8"视频质量:", "Video Quality:", u8"Качество видео:")       \
+  X(video_frame_rate, u8"画面采集帧率:",                                       \
+    "Video Capture Frame Rate:", u8"Частота захвата видео:")                   \
+  X(video_quality_high, u8"高", "High", u8"Высокое")                           \
+  X(video_quality_medium, u8"中", "Medium", u8"Среднее")                       \
+  X(video_quality_low, u8"低", "Low", u8"Низкое")                              \
+  X(video_encode_format, u8"视频编码格式:",                                    \
+    "Video Encode Format:", u8"Формат кодека видео:")                          \
+  X(av1, u8"AV1", "AV1", "AV1")                                                \
+  X(h264, u8"H.264", "H.264", "H.264")                                         \
+  X(enable_hardware_video_codec, u8"启用硬件编解码器:",                        \
+    "Enable Hardware Video Codec:", u8"Использовать аппаратный кодек:")        \
+  X(enable_turn, u8"启用中继服务:",                                            \
+    "Enable TURN Service:", u8"Включить TURN-сервис:")                         \
+  X(enable_srtp, u8"启用SRTP:", "Enable SRTP:", u8"Включить SRTP:")            \
+  X(self_hosted_server_config, u8"自托管配置", "Self-Hosted Config",           \
+    u8"Конфигурация self-hosted")                                              \
+  X(self_hosted_server_settings, u8"自托管设置", "Self-Hosted Settings",       \
+    u8"Настройки self-hosted")                                                 \
+  X(self_hosted_server_address, u8"服务器地址:",                               \
+    "Server Address:", u8"Адрес сервера:")                                     \
+  X(self_hosted_server_port, u8"信令服务端口:",                                \
+    "Signal Service Port:", u8"Порт сигнального сервиса:")                     \
+  X(self_hosted_server_coturn_server_port, u8"中继服务端口:",                  \
+    "Relay Service Port:", u8"Порт реле-сервиса:")                             \
+  X(ok, u8"确认", "OK", u8"ОК")                                                \
+  X(cancel, u8"取消", "Cancel", u8"Отмена")                                    \
+  X(new_password, u8"请输入六位密码:",                                         \
+    "Please input a six-char password:", u8"Введите шестизначный пароль:")     \
+  X(input_password, u8"请输入密码:",                                           \
+    "Please input password:", u8"Введите пароль:")                             \
+  X(validate_password, u8"验证密码中...", "Validate password ...",             \
+    u8"Проверка пароля...")                                                    \
+  X(reinput_password, u8"请重新输入密码", "Please input password again",       \
+    u8"Повторно введите пароль")                                               \
+  X(remember_password, u8"记住密码", "Remember password",                      \
+    u8"Запомнить пароль")                                                      \
+  X(signal_connected, u8"已连接服务器", "Connected", u8"Подключено к серверу") \
+  X(signal_disconnected, u8"未连接服务器", "Disconnected",                     \
+    u8"Нет подключения к серверу")                                             \
+  X(p2p_connected, u8"对等连接已建立", "P2P Connected", u8"P2P подключено")    \
+  X(p2p_disconnected, u8"对等连接已断开", "P2P Disconnected",                  \
+    u8"P2P отключено")                                                         \
+  X(p2p_connecting, u8"正在建立对等连接...", "P2P Connecting ...",             \
+    u8"Подключение P2P...")                                                    \
+  X(receiving_screen, u8"画面接收中...", "Receiving screen...",                \
+    u8"Получение изображения...")                                              \
+  X(p2p_failed, u8"对等连接失败", "P2P Failed", u8"Сбой P2P")                  \
+  X(p2p_closed, u8"对等连接已关闭", "P2P closed", u8"P2P закрыто")             \
+  X(no_such_id, u8"无此ID", "No such ID", u8"ID не найден")                    \
+  X(about, u8"关于", "About", u8"О программе")                                 \
+  X(notification, u8"通知", "Notification", u8"Уведомление")                   \
+  X(new_version_available, u8"新版本可用", "New Version Available",            \
+    u8"Доступна новая версия")                                                 \
+  X(version, u8"版本", "Version", u8"Версия")                                  \
+  X(release_date, u8"发布日期: ", "Release Date: ", u8"Дата релиза: ")         \
+  X(access_website, u8"访问官网: ",                                            \
+    "Access Website: ", u8"Официальный сайт: ")                                \
+  X(update, u8"更新", "Update", u8"Обновить")                                  \
+  X(confirm_delete_connection, u8"确认删除此连接",                             \
+    "Confirm to delete this connection", u8"Удалить это подключение?")         \
+  X(enable_autostart, u8"开机自启:", "Auto Start:", u8"Автозапуск:")           \
+  X(enable_daemon, u8"启用守护进程:", "Enable Daemon:", u8"Включить демон:")   \
+  X(takes_effect_after_restart, u8"重启后生效", "Takes effect after restart",  \
+    u8"Вступит в силу после перезапуска")                                      \
+  X(select_file, u8"选择文件", "Select File", u8"Выбрать файл")                \
+  X(file_transfer_progress, u8"文件传输进度", "File Transfer Progress",        \
+    u8"Прогресс передачи файлов")                                              \
+  X(queued, u8"队列中", "Queued", u8"В очереди")                               \
+  X(sending, u8"正在传输", "Sending", u8"Передача")                            \
+  X(completed, u8"已完成", "Completed", u8"Завершено")                         \
+  X(failed, u8"失败", "Failed", u8"Ошибка")                                    \
+  X(controller, u8"控制端:", "Controller:", u8"Контроллер:")                   \
+  X(file_transfer, u8"文件传输:", "File Transfer:", u8"Передача файлов:")      \
+  X(connection_status, u8"连接状态:",                                          \
+    "Connection Status:", u8"Состояние соединения:")                           \
+  X(file_transfer_save_path, u8"文件接收保存路径:",                            \
+    "File Transfer Save Path:", u8"Путь сохранения файлов:")                   \
+  X(default_desktop, u8"桌面", "Desktop", u8"Рабочий стол")                    \
+  X(minimize_to_tray, u8"退出时最小化到系统托盘:",                             \
+    "Minimize on Exit:", u8"Сворачивать в трей при выходе:")                   \
+  X(resolution, u8"分辨率", "Res", u8"Разрешение")                             \
+  X(connection_mode, u8"连接模式", "Mode", u8"Режим")                          \
+  X(connection_mode_direct, u8"直连", "Direct", u8"Прямой")                    \
+  X(connection_mode_relay, u8"中继", "Relay", u8"Релейный")                    \
+  X(online, u8"在线", "Online", u8"Онлайн")                                    \
+  X(offline, u8"离线", "Offline", u8"Офлайн")                                  \
+  X(device_offline, u8"设备离线", "Device Offline", u8"Устройство офлайн")     \
+  X(request_permissions, u8"权限请求", "Request Permissions",                  \
+    u8"Запрос разрешений")                                                     \
+  X(screen_recording_permission, u8"屏幕录制权限",                             \
+    "Screen Recording Permission", u8"Разрешение на запись экрана")            \
+  X(accessibility_permission, u8"辅助功能权限", "Accessibility Permission",    \
+    u8"Разрешение специальных возможностей")                                   \
+  X(permission_required_message, u8"该应用需要授权以下权限:",                  \
+    "The application requires the following permissions:",                     \
+    u8"Для работы приложения требуются следующие разрешения:")                 \
+  X(exit_program, u8"退出", "Exit", u8"Выход")
+
+inline constexpr TranslationRow kTranslationRows[] = {
+#define CROSSDESK_DECLARE_TRANSLATION_ROW(name, zh, en, ru) {#name, zh, en, ru},
+    CROSSDESK_LOCALIZATION_ALL(CROSSDESK_DECLARE_TRANSLATION_ROW)
+#undef CROSSDESK_DECLARE_TRANSLATION_ROW
+};
+
+}  // namespace detail
+
+}  // namespace localization
+}  // namespace crossdesk
+
+#endif
--- a/src/gui/device_presence.h
+++ b/src/gui/device_presence.h
@@ -0,0 +1,36 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-02-28
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _DEVICE_PRESENCE_H_
+#define _DEVICE_PRESENCE_H_
+
+#include <mutex>
+#include <string>
+#include <unordered_map>
+
+class DevicePresence {
+ public:
+  void SetOnline(const std::string& device_id, bool online) {
+    std::lock_guard<std::mutex> lock(mutex_);
+    cache_[device_id] = online;
+  }
+
+  bool IsOnline(const std::string& device_id) const {
+    std::lock_guard<std::mutex> lock(mutex_);
+    return cache_.count(device_id) > 0 && cache_.at(device_id);
+  }
+
+  void Clear() {
+    std::lock_guard<std::mutex> lock(mutex_);
+    cache_.clear();
+  }
+
+ private:
+  std::unordered_map<std::string, bool> cache_;
+  mutable std::mutex mutex_;
+};
+
+#endif
--- a/src/gui/panels/local_peer_panel.cpp
+++ b/src/gui/panels/local_peer_panel.cpp
@@ -1,6 +1,6 @@
 #include <random>

-#include "layout.h"
+#include "layout_relative.h"
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
@@ -8,21 +8,29 @@
 namespace crossdesk {

 int Render::LocalWindow() {
-  ImGui::SetNextWindowPos(ImVec2(-1.0f, title_bar_height_), ImGuiCond_Always);
-  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+  ImGuiIO& io = ImGui::GetIO();
+  float local_window_width = io.DisplaySize.x * 0.5f;
+  float local_window_height =
+      io.DisplaySize.y * (1 - TITLE_BAR_HEIGHT - STATUS_BAR_HEIGHT);
+  float local_window_button_width = io.DisplaySize.x * 0.046f;
+  float local_window_button_height = io.DisplaySize.y * 0.075f;

-  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::SetNextWindowPos(ImVec2(0.0f, io.DisplaySize.y * TITLE_BAR_HEIGHT),
+                          ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(0, 0, 0, 0));
  ImGui::BeginChild("LocalDesktopWindow",
-                    ImVec2(local_window_width_, local_window_height_),
+                    ImVec2(local_window_width, local_window_height),
                    ImGuiChildFlags_None,
-                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                    ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
                        ImGuiWindowFlags_NoBringToFrontOnFocus);
  ImGui::PopStyleColor();

-  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + main_window_text_y_padding_);
-  ImGui::Indent(main_child_window_x_padding_);
+  ImGui::SetCursorPos(
+      ImVec2(io.DisplaySize.x * 0.045f, io.DisplaySize.y * 0.02f));

+  ImGui::SetWindowFontScale(0.9f);
  ImGui::TextColored(
      ImVec4(0.0f, 0.0f, 0.0f, 0.5f), "%s",
      localization::local_desktop[localization_language_index_].c_str());
@@ -30,18 +38,16 @@ int Render::LocalWindow() {
  ImGui::Spacing();
  {
    ImGui::SetNextWindowPos(
-        ImVec2(main_child_window_x_padding_,
-               title_bar_height_ + main_child_window_y_padding_),
+        ImVec2(io.DisplaySize.x * 0.045f, io.DisplaySize.y * 0.15f),
        ImGuiCond_Always);
    ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(239.0f / 255, 240.0f / 255,
                                                   242.0f / 255, 1.0f));
-    ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, window_rounding_ * 1.5f);
    ImGui::BeginChild(
-        "LocalDesktopWindow_1",
-        ImVec2(local_child_window_width_, local_child_window_height_),
-        ImGuiChildFlags_Border,
-        ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-            ImGuiWindowFlags_NoTitleBar |
+        "LocalDesktopPanel",
+        ImVec2(local_window_width * 0.8f, local_window_height * 0.43f),
+        ImGuiChildFlags_Borders,
+        ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
            ImGuiWindowFlags_NoBringToFrontOnFocus);
    ImGui::PopStyleVar();
    ImGui::PopStyleColor();
@@ -52,7 +58,7 @@ int Render::LocalWindow() {

      ImGui::Spacing();

-      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+      ImGui::SetNextItemWidth(io.DisplaySize.x * 0.25f);
      ImGui::SetWindowFontScale(1.0f);
      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);

@@ -76,7 +82,8 @@ int Render::LocalWindow() {
      ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0));
      ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0, 0, 0, 0));
      ImGui::SetWindowFontScale(0.5f);
-      if (ImGui::Button(ICON_FA_COPY, ImVec2(22, 38))) {
+      if (ImGui::Button(ICON_FA_COPY, ImVec2(local_window_button_width,
+                                             local_window_button_height))) {
        local_id_copied_ = true;
        ImGui::SetClipboardText(client_id_);
        copy_start_time_ = ImGui::GetTime();
@@ -86,22 +93,15 @@ int Render::LocalWindow() {

      double time_duration = ImGui::GetTime() - copy_start_time_;
      if (local_id_copied_ && time_duration < 1.0f) {
-        const ImGuiViewport* viewport = ImGui::GetMainViewport();
        ImGui::SetNextWindowPos(
-            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                    notification_window_width_) /
-                       2,
-                   (viewport->WorkSize.y - viewport->WorkPos.y -
-                    notification_window_height_) /
-                       2));
-
+            ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
        ImGui::SetNextWindowSize(
-            ImVec2(notification_window_width_, notification_window_height_));
+            ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
        ImGui::PushStyleColor(
            ImGuiCol_WindowBg,
            ImVec4(1.0f, 1.0f, 1.0f, 1.0f - (float)time_duration));
        ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
-        ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
        ImGui::Begin("ConnectionStatusWindow", nullptr,
                     ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
                         ImGuiWindowFlags_NoSavedSettings);
@@ -115,7 +115,7 @@ int Render::LocalWindow() {
            [localization_language_index_];
        auto text_width = ImGui::CalcTextSize(text.c_str()).x;
        ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
-        ImGui::SetCursorPosY(window_height * 0.5f);
+        ImGui::SetCursorPosY(window_height * 0.4f);
        ImGui::PushStyleColor(ImGuiCol_Text,
                              ImVec4(0, 0, 0, 1.0f - (float)time_duration));
        ImGui::Text("%s", text.c_str());
@@ -134,7 +134,7 @@ int Render::LocalWindow() {
                  localization::password[localization_language_index_].c_str());
      ImGui::SetWindowFontScale(1.0f);

-      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+      ImGui::SetNextItemWidth(io.DisplaySize.x * 0.25f);
      ImGui::Spacing();

      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
@@ -156,51 +156,35 @@ int Render::LocalWindow() {
      ImGui::SetWindowFontScale(0.5f);
      auto l_x = ImGui::GetCursorScreenPos().x;
      auto l_y = ImGui::GetCursorScreenPos().y;
-      if (ImGui::Button(ICON_FA_EYE, ImVec2(22, 38))) {
+      if (ImGui::Button(
+              show_password_ ? ICON_FA_EYE : ICON_FA_EYE_SLASH,
+              ImVec2(local_window_button_width, local_window_button_height))) {
        show_password_ = !show_password_;
      }

-      if (!show_password_) {
-        ImDrawList* draw_list = ImGui::GetWindowDrawList();
-        draw_list->AddLine(ImVec2(l_x + 3.0f, l_y + 12.5f),
-                           ImVec2(l_x + 20.3f, l_y + 26.5f),
-                           IM_COL32(239, 240, 242, 255), 2.0f);
-        draw_list->AddLine(ImVec2(l_x + 3.0f, l_y + 11.0f),
-                           ImVec2(l_x + 20.3f, l_y + 25.0f),
-                           IM_COL32(0, 0, 0, 255), 1.5f);
-      }
-
      ImGui::SameLine();

-      if (ImGui::Button(ICON_FA_PEN, ImVec2(22, 38))) {
+      if (ImGui::Button(ICON_FA_PEN, ImVec2(local_window_button_width,
+                                            local_window_button_height))) {
        show_reset_password_window_ = true;
      }
      ImGui::SetWindowFontScale(1.0f);
      ImGui::PopStyleColor(3);

      if (show_reset_password_window_) {
-        const ImGuiViewport* viewport = ImGui::GetMainViewport();
-
        ImGui::SetNextWindowPos(
-            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                    connection_status_window_width_) /
-                       2,
-                   (viewport->WorkSize.y - viewport->WorkPos.y -
-                    connection_status_window_height_) /
-                       2));
-
-        ImGui::SetNextWindowSize(ImVec2(connection_status_window_width_,
-                                        connection_status_window_height_));
-
-        ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+            ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
+        ImGui::SetNextWindowSize(
+            ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));

+        ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding,
+                            window_rounding_ * 0.5f);
        ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0, 1.0, 1.0, 1.0));
        ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
-        ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+        ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);

        ImGui::Begin("ResetPasswordWindow", nullptr,
-                     ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                         ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                     ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
                         ImGuiWindowFlags_NoSavedSettings);
        ImGui::PopStyleVar(2);
        ImGui::PopStyleColor();
@@ -215,9 +199,9 @@ int Render::LocalWindow() {
        ImGui::SetCursorPosY(window_height * 0.2f);
        ImGui::Text("%s", text.c_str());

-        ImGui::SetCursorPosX((window_width - IPUT_WINDOW_WIDTH / 2) * 0.5f);
+        ImGui::SetCursorPosX(window_width * 0.33f);
        ImGui::SetCursorPosY(window_height * 0.4f);
-        ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH / 2);
+        ImGui::SetNextItemWidth(window_width * 0.33f);

        ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);

@@ -251,15 +235,41 @@ int Render::LocalWindow() {
                    sizeof(password_saved_) - 1);
            password_saved_[sizeof(password_saved_) - 1] = '\0';

-            std::string client_id_with_password =
-                std::string(client_id_) + "@" + password_saved_;
-            strncpy(client_id_with_password_, client_id_with_password.c_str(),
-                    sizeof(client_id_with_password_) - 1);
-            client_id_with_password_[sizeof(client_id_with_password_) - 1] =
-                '\0';
+            // if self hosted
+            if (config_center_->IsSelfHosted()) {
+              std::string self_hosted_id_str;
+              if (strlen(self_hosted_id_) > 0) {
+                const char* at_pos = strchr(self_hosted_id_, '@');
+                if (at_pos != nullptr) {
+                  self_hosted_id_str =
+                      std::string(self_hosted_id_, at_pos - self_hosted_id_);
+                } else {
+                  self_hosted_id_str = self_hosted_id_;
+                }
+              } else {
+                self_hosted_id_str = client_id_;
+              }
+
+              std::string new_self_hosted_id =
+                  self_hosted_id_str + "@" + password_saved_;
+              memset(&self_hosted_id_, 0, sizeof(self_hosted_id_));
+              strncpy(self_hosted_id_, new_self_hosted_id.c_str(),
+                      sizeof(self_hosted_id_) - 1);
+              self_hosted_id_[sizeof(self_hosted_id_) - 1] = '\0';
+
+            } else {
+              std::string client_id_with_password =
+                  std::string(client_id_) + "@" + password_saved_;
+              strncpy(client_id_with_password_, client_id_with_password.c_str(),
+                      sizeof(client_id_with_password_) - 1);
+              client_id_with_password_[sizeof(client_id_with_password_) - 1] =
+                  '\0';
+            }

            SaveSettingsIntoCacheFile();

+            memset(new_password_, 0, sizeof(new_password_));
+
            LeaveConnection(peer_, client_id_);
            DestroyPeer(&peer_);
            focus_on_input_widget_ = true;
@@ -290,4 +300,4 @@ int Render::LocalWindow() {

  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/panels/recent_connections_panel.cpp
+++ b/src/gui/panels/recent_connections_panel.cpp
@@ -1,3 +1,4 @@
+#include "layout_relative.h"
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
@@ -5,26 +6,27 @@
 namespace crossdesk {

 int Render::RecentConnectionsWindow() {
-  ImGui::SetNextWindowPos(
-      ImVec2(0, title_bar_height_ + local_window_height_ - 1.0f),
-      ImGuiCond_Always);
+  ImGuiIO& io = ImGui::GetIO();
+  float recent_connection_window_width = io.DisplaySize.x;
+  float recent_connection_window_height =
+      io.DisplaySize.y * (0.455f - STATUS_BAR_HEIGHT);
+  ImGui::SetNextWindowPos(ImVec2(0, io.DisplaySize.y * 0.55f),
+                          ImGuiCond_Always);
  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
  ImGui::BeginChild(
      "RecentConnectionsWindow",
-      ImVec2(main_window_width_default_,
-             main_window_height_default_ - title_bar_height_ -
-                 local_window_height_ - status_bar_height_ + 1.0f),
-      ImGuiChildFlags_Border,
-      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-          ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+      ImVec2(recent_connection_window_width, recent_connection_window_height),
+      ImGuiChildFlags_Borders,
+      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
          ImGuiWindowFlags_NoBringToFrontOnFocus);
  ImGui::PopStyleVar();
  ImGui::PopStyleColor();

-  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + main_window_text_y_padding_);
-  ImGui::Indent(main_child_window_x_padding_);
+  ImGui::SetCursorPos(
+      ImVec2(io.DisplaySize.x * 0.045f, io.DisplaySize.y * 0.02f));

+  ImGui::SetWindowFontScale(0.9f);
  ImGui::TextColored(
      ImVec4(0.0f, 0.0f, 0.0f, 0.5f), "%s",
      localization::recent_connections[localization_language_index_].c_str());
@@ -37,31 +39,40 @@ int Render::RecentConnectionsWindow() {
 }

 int Render::ShowRecentConnections() {
-  ImGui::SetCursorPosX(25.0f);
-  ImVec2 sub_window_pos = ImGui::GetCursorPos();
-  std::map<std::string, ImVec2> sub_containers_pos;
+  ImGuiIO& io = ImGui::GetIO();
+  float recent_connection_panel_width = io.DisplaySize.x * 0.912f;
+  float recent_connection_panel_height = io.DisplaySize.y * 0.29f;
+  float recent_connection_image_height = recent_connection_panel_height * 0.6f;
+  float recent_connection_image_width = recent_connection_image_height * 16 / 9;
  float recent_connection_sub_container_width =
-      recent_connection_image_width_ + 16.0f;
+      recent_connection_image_width * 1.2f;
  float recent_connection_sub_container_height =
-      recent_connection_image_height_ + 36.0f;
+      recent_connection_image_height * 1.4f;
+  float recent_connection_button_width = recent_connection_image_width * 0.15f;
+  float recent_connection_button_height =
+      recent_connection_image_height * 0.25f;
+  float recent_connection_dummy_button_width =
+      recent_connection_image_width - 2 * recent_connection_button_width;
+
+  ImGui::SetCursorPos(
+      ImVec2(io.DisplaySize.x * 0.045f, io.DisplaySize.y * 0.1f));
+
+  std::map<std::string, ImVec2> sub_containers_pos;
  ImGui::PushStyleColor(ImGuiCol_ChildBg,
                        ImVec4(239.0f / 255, 240.0f / 255, 242.0f / 255, 1.0f));
  ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
-  ImGui::BeginChild("RecentConnectionsContainer",
-                    ImVec2(main_window_width_default_ - 50.0f, 145.0f),
-                    ImGuiChildFlags_Border,
-                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
-                        ImGuiWindowFlags_NoBringToFrontOnFocus |
-                        ImGuiWindowFlags_AlwaysHorizontalScrollbar |
-                        ImGuiWindowFlags_NoScrollbar |
-                        ImGuiWindowFlags_NoScrollWithMouse);
+  ImGui::BeginChild(
+      "RecentConnectionsContainer",
+      ImVec2(recent_connection_panel_width, recent_connection_panel_height),
+      ImGuiChildFlags_Borders,
+      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+          ImGuiWindowFlags_NoBringToFrontOnFocus |
+          ImGuiWindowFlags_AlwaysHorizontalScrollbar |
+          ImGuiWindowFlags_NoScrollWithMouse);
  ImGui::PopStyleVar();
  ImGui::PopStyleColor();
  size_t recent_connections_count = recent_connections_.size();
  int count = 0;
-  float button_width = 22;
-  float button_height = 22;
  for (auto& it : recent_connections_) {
    sub_containers_pos[it.first] = ImGui::GetCursorPos();
    std::string recent_connection_sub_window_name =
@@ -71,11 +82,8 @@ int Render::ShowRecentConnections() {
                      ImVec2(recent_connection_sub_container_width,
                             recent_connection_sub_container_height),
                      ImGuiChildFlags_None,
-                      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                          ImGuiWindowFlags_NoMove |
-                          ImGuiWindowFlags_NoTitleBar |
-                          ImGuiWindowFlags_NoBringToFrontOnFocus |
-                          ImGuiWindowFlags_NoScrollbar);
+                      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+                          ImGuiWindowFlags_NoBringToFrontOnFocus);
    std::string connection_info = it.first;

    // remote id length is 9
@@ -114,14 +122,41 @@ int Render::ShowRecentConnections() {
      it.second.remote_host_name = "unknown";
    }

-    ImVec2 image_screen_pos = ImVec2(ImGui::GetCursorScreenPos().x + 5.0f,
-                                     ImGui::GetCursorScreenPos().y + 5.0f);
+    bool online = device_presence_.IsOnline(it.second.remote_id);
+
+    ImVec2 image_screen_pos = ImVec2(
+        ImGui::GetCursorScreenPos().x + recent_connection_image_width * 0.04f,
+        ImGui::GetCursorScreenPos().y + recent_connection_image_height * 0.08f);
    ImVec2 image_pos =
-        ImVec2(ImGui::GetCursorPosX() + 5.0f, ImGui::GetCursorPosY() + 5.0f);
+        ImVec2(ImGui::GetCursorPosX() + recent_connection_image_width * 0.05f,
+               ImGui::GetCursorPosY() + recent_connection_image_height * 0.08f);
    ImGui::SetCursorPos(image_pos);
-    ImGui::Image((ImTextureID)(intptr_t)it.second.texture,
-                 ImVec2((float)recent_connection_image_width_,
-                        (float)recent_connection_image_height_));
+    ImGui::Image(
+        (ImTextureID)(intptr_t)it.second.texture,
+        ImVec2(recent_connection_image_width, recent_connection_image_height));
+    if (ImGui::IsItemHovered()) {
+      ImGui::BeginTooltip();
+      ImGui::SetWindowFontScale(0.5f);
+      std::string display_host_name_with_presence =
+          it.second.remote_host_name + " " +
+          (online ? localization::online[localization_language_index_]
+                  : localization::offline[localization_language_index_]);
+      ImGui::Text("%s", display_host_name_with_presence.c_str());
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::EndTooltip();
+    }
+
+    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+    ImVec2 circle_pos =
+        ImVec2(image_screen_pos.x + recent_connection_image_width * 0.07f,
+               image_screen_pos.y + recent_connection_image_height * 0.12f);
+    ImU32 fill_color =
+        online ? IM_COL32(0, 255, 0, 255) : IM_COL32(140, 140, 140, 255);
+    ImU32 border_color = IM_COL32(255, 255, 255, 255);
+    float dot_radius = recent_connection_image_height * 0.06f;
+    draw_list->AddCircleFilled(circle_pos, dot_radius * 1.25f, border_color,
+                               100);
+    draw_list->AddCircleFilled(circle_pos, dot_radius, fill_color, 100);

    // remote id display button
    {
@@ -130,28 +165,21 @@ int Render::ShowRecentConnections() {
      ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0, 0, 0, 0.2f));

      ImVec2 dummy_button_pos =
-          ImVec2(image_pos.x, image_pos.y + recent_connection_image_height_);
+          ImVec2(image_pos.x, image_pos.y + recent_connection_image_height);
      std::string dummy_button_name = "##DummyButton" + it.second.remote_id;
      ImGui::SetCursorPos(dummy_button_pos);
      ImGui::SetWindowFontScale(0.6f);
      ImGui::Button(dummy_button_name.c_str(),
-                    ImVec2(recent_connection_image_width_ - 2 * button_width,
-                           button_height));
+                    ImVec2(recent_connection_dummy_button_width,
+                           recent_connection_button_height));
      ImGui::SetWindowFontScale(1.0f);
-      ImGui::SetCursorPos(
-          ImVec2(dummy_button_pos.x + 2.0f, dummy_button_pos.y + 1.0f));
+      ImGui::SetCursorPos(ImVec2(
+          dummy_button_pos.x + recent_connection_dummy_button_width * 0.05f,
+          dummy_button_pos.y + recent_connection_button_height * 0.05f));
      ImGui::SetWindowFontScale(0.65f);
      ImGui::Text("%s", it.second.remote_id.c_str());
      ImGui::SetWindowFontScale(1.0f);
      ImGui::PopStyleColor(3);
-
-      if (ImGui::IsItemHovered()) {
-        ImGui::BeginTooltip();
-        ImGui::SetWindowFontScale(0.5f);
-        ImGui::Text("%s", it.second.remote_host_name.c_str());
-        ImGui::SetWindowFontScale(1.0f);
-        ImGui::EndTooltip();
-      }
    }

    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0.2f));
@@ -162,16 +190,18 @@ int Render::ShowRecentConnections() {
    ImGui::SetWindowFontScale(0.5f);
    // trash button
    {
-      ImVec2 trash_can_button_pos = ImVec2(
-          image_pos.x + recent_connection_image_width_ - 2 * button_width,
-          image_pos.y + recent_connection_image_height_);
+      ImVec2 trash_can_button_pos =
+          ImVec2(image_pos.x + recent_connection_image_width -
+                     2 * recent_connection_button_width,
+                 image_pos.y + recent_connection_image_height);
      ImGui::SetCursorPos(trash_can_button_pos);
      std::string trash_can = ICON_FA_TRASH_CAN;
      std::string recent_connection_delete_button_name =
          trash_can + "##RecentConnectionDelete" +
          std::to_string(trash_can_button_pos.x);
      if (ImGui::Button(recent_connection_delete_button_name.c_str(),
-                        ImVec2(button_width, button_height))) {
+                        ImVec2(recent_connection_button_width,
+                               recent_connection_button_height))) {
        show_confirm_delete_connection_ = true;
        delete_connection_name_ = it.first;
      }
@@ -187,14 +217,16 @@ int Render::ShowRecentConnections() {
    // connect button
    {
      ImVec2 connect_button_pos =
-          ImVec2(image_pos.x + recent_connection_image_width_ - button_width,
-                 image_pos.y + recent_connection_image_height_);
+          ImVec2(image_pos.x + recent_connection_image_width -
+                     recent_connection_button_width,
+                 image_pos.y + recent_connection_image_height);
      ImGui::SetCursorPos(connect_button_pos);
      std::string connect = ICON_FA_ARROW_RIGHT_LONG;
      std::string connect_to_this_connection_button_name =
          connect + "##ConnectionTo" + it.first;
      if (ImGui::Button(connect_to_this_connection_button_name.c_str(),
-                        ImVec2(button_width, button_height))) {
+                        ImVec2(recent_connection_button_width,
+                               recent_connection_button_height))) {
        ConnectTo(it.second.remote_id, it.second.password.c_str(),
                  it.second.remember_password);
      }
@@ -206,17 +238,20 @@ int Render::ShowRecentConnections() {

    if (count != recent_connections_count - 1) {
      ImVec2 line_start =
-          ImVec2(image_screen_pos.x + recent_connection_image_width_ + 20.0f,
+          ImVec2(image_screen_pos.x + recent_connection_image_width * 1.19f,
                 image_screen_pos.y);
-      ImVec2 line_end = ImVec2(
-          image_screen_pos.x + recent_connection_image_width_ + 20.0f,
-          image_screen_pos.y + recent_connection_image_height_ + button_height);
+      ImVec2 line_end =
+          ImVec2(image_screen_pos.x + recent_connection_image_width * 1.19f,
+                 image_screen_pos.y + recent_connection_image_height +
+                     recent_connection_button_height);
      ImGui::GetWindowDrawList()->AddLine(line_start, line_end,
                                          IM_COL32(0, 0, 0, 122), 1.0f);
    }

    count++;
-    ImGui::SameLine(0, count != recent_connections_count ? 26.0f : 0.0f);
+    ImGui::SameLine(0, count != recent_connections_count
+                           ? (recent_connection_image_width * 0.165f)
+                           : 0.0f);
  }

  ImGui::EndChild();
@@ -224,37 +259,38 @@ int Render::ShowRecentConnections() {
  if (show_confirm_delete_connection_) {
    ConfirmDeleteConnection();
  }
+  if (show_offline_warning_window_) {
+    OfflineWarningWindow();
+  }

  return 0;
 }

 int Render::ConfirmDeleteConnection() {
-  const ImGuiViewport* viewport = ImGui::GetMainViewport();
-  ImGui::SetNextWindowPos(ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                                  connection_status_window_width_) /
-                                     2,
-                                 (viewport->WorkSize.y - viewport->WorkPos.y -
-                                  connection_status_window_height_) /
-                                     2));
+  ImGuiIO& io = ImGui::GetIO();
+  ImGui::SetNextWindowPos(
+      ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
+  ImGui::SetNextWindowSize(
+      ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));

-  ImGui::SetNextWindowSize(ImVec2(connection_status_window_width_,
-                                  connection_status_window_height_));
-  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
-  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0, 1.0, 1.0, 1.0));
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
-  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);

  ImGui::Begin("ConfirmDeleteConnectionWindow", nullptr,
-               ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                   ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+               ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
                   ImGuiWindowFlags_NoSavedSettings);
  ImGui::PopStyleVar(2);
  ImGui::PopStyleColor();

+  auto connection_status_window_width = ImGui::GetWindowSize().x;
+  auto connection_status_window_height = ImGui::GetWindowSize().y;
+
  std::string text =
      localization::confirm_delete_connection[localization_language_index_];
-  ImGui::SetCursorPosX(connection_status_window_width_ * 6 / 19);
-  ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+  ImGui::SetCursorPosX(connection_status_window_width * 0.33f);
+  ImGui::SetCursorPosY(connection_status_window_height * 0.67f);

  // ok
  ImGui::SetWindowFontScale(0.5f);
@@ -273,12 +309,9 @@ int Render::ConfirmDeleteConnection() {
    show_confirm_delete_connection_ = false;
  }

-  auto window_width = ImGui::GetWindowSize().x;
-  auto window_height = ImGui::GetWindowSize().y;
-
  auto text_width = ImGui::CalcTextSize(text.c_str()).x;
-  ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
-  ImGui::SetCursorPosY(window_height * 0.2f);
+  ImGui::SetCursorPosX((connection_status_window_width - text_width) * 0.5f);
+  ImGui::SetCursorPosY(connection_status_window_height * 0.2f);
  ImGui::Text("%s", text.c_str());
  ImGui::SetWindowFontScale(1.0f);

@@ -286,4 +319,45 @@ int Render::ConfirmDeleteConnection() {
  ImGui::PopStyleVar();
  return 0;
 }
-}  // namespace crossdesk
+
+int Render::OfflineWarningWindow() {
+  ImGuiIO& io = ImGui::GetIO();
+  ImGui::SetNextWindowPos(
+      ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
+  ImGui::SetNextWindowSize(
+      ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
+
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+
+  ImGui::Begin("OfflineWarningWindow", nullptr,
+               ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+                   ImGuiWindowFlags_NoSavedSettings);
+  ImGui::PopStyleVar(2);
+  ImGui::PopStyleColor();
+
+  auto window_width = ImGui::GetWindowSize().x;
+  auto window_height = ImGui::GetWindowSize().y;
+
+  ImGui::SetCursorPosX(window_width * 0.43f);
+  ImGui::SetCursorPosY(window_height * 0.67f);
+  ImGui::SetWindowFontScale(0.5f);
+  if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
+      ImGui::IsKeyPressed(ImGuiKey_Enter) ||
+      ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+    show_offline_warning_window_ = false;
+  }
+
+  auto text_width = ImGui::CalcTextSize(offline_warning_text_.c_str()).x;
+  ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
+  ImGui::SetCursorPosY(window_height * 0.2f);
+  ImGui::Text("%s", offline_warning_text_.c_str());
+  ImGui::SetWindowFontScale(1.0f);
+
+  ImGui::End();
+  ImGui::PopStyleVar();
+  return 0;
+}
+}  // namespace crossdesk
--- a/src/gui/panels/remote_peer_panel.cpp
+++ b/src/gui/panels/remote_peer_panel.cpp
@@ -1,4 +1,4 @@
-#include "layout.h"
+#include "layout_relative.h"
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
@@ -8,22 +8,30 @@ namespace crossdesk {
 static int InputTextCallback(ImGuiInputTextCallbackData* data);

 int Render::RemoteWindow() {
-  ImGui::SetNextWindowPos(ImVec2(local_window_width_ + 1.0f, title_bar_height_),
-                          ImGuiCond_Always);
-  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+  ImGuiIO& io = ImGui::GetIO();
+  float remote_window_width = io.DisplaySize.x * 0.5f;
+  float remote_window_height =
+      io.DisplaySize.y * (1 - TITLE_BAR_HEIGHT - STATUS_BAR_HEIGHT);
+  float remote_window_arrow_button_width = io.DisplaySize.x * 0.1f;
+  float remote_window_arrow_button_height = io.DisplaySize.y * 0.078f;

-  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::SetNextWindowPos(
+      ImVec2(io.DisplaySize.x * 0.5f, io.DisplaySize.y * TITLE_BAR_HEIGHT),
+      ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(0, 0, 0, 0));
  ImGui::BeginChild("RemoteDesktopWindow",
-                    ImVec2(remote_window_width_, remote_window_height_),
+                    ImVec2(remote_window_width, remote_window_height),
                    ImGuiChildFlags_None,
-                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+                    ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
                        ImGuiWindowFlags_NoBringToFrontOnFocus);
  ImGui::PopStyleColor();

-  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + main_window_text_y_padding_);
-  ImGui::Indent(main_child_window_x_padding_ - 1.0f);
+  ImGui::SetCursorPos(
+      ImVec2(io.DisplaySize.x * 0.057f, io.DisplaySize.y * 0.02f));

+  ImGui::SetWindowFontScale(0.9f);
  ImGui::TextColored(
      ImVec4(0.0f, 0.0f, 0.0f, 0.5f), "%s",
      localization::remote_desktop[localization_language_index_].c_str());
@@ -31,8 +39,7 @@ int Render::RemoteWindow() {
  ImGui::Spacing();
  {
    ImGui::SetNextWindowPos(
-        ImVec2(local_window_width_ + main_child_window_x_padding_ - 1.0f,
-               title_bar_height_ + main_child_window_y_padding_),
+        ImVec2(io.DisplaySize.x * 0.557f, io.DisplaySize.y * 0.15f),
        ImGuiCond_Always);
    ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(239.0f / 255, 240.0f / 255,
                                                   242.0f / 255, 1.0f));
@@ -40,10 +47,9 @@ int Render::RemoteWindow() {

    ImGui::BeginChild(
        "RemoteDesktopWindow_1",
-        ImVec2(remote_child_window_width_, remote_child_window_height_),
-        ImGuiChildFlags_Border,
-        ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-            ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+        ImVec2(remote_window_width * 0.8f, remote_window_height * 0.43f),
+        ImGuiChildFlags_Borders,
+        ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
            ImGuiWindowFlags_NoBringToFrontOnFocus);
    ImGui::PopStyleVar();
    ImGui::PopStyleColor();
@@ -53,7 +59,7 @@ int Render::RemoteWindow() {
          "%s", localization::remote_id[localization_language_index_].c_str());

      ImGui::Spacing();
-      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+      ImGui::SetNextItemWidth(io.DisplaySize.x * 0.25f);
      ImGui::SetWindowFontScale(1.0f);
      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
      if (re_enter_remote_id_) {
@@ -75,38 +81,65 @@ int Render::RemoteWindow() {
      remote_id.erase(remove_if(remote_id.begin(), remote_id.end(),
                                static_cast<int (*)(int)>(&isspace)),
                      remote_id.end());
-      if (ImGui::Button(ICON_FA_ARROW_RIGHT_LONG, ImVec2(55, 38)) ||
+      if (ImGui::Button(ICON_FA_ARROW_RIGHT_LONG,
+                        ImVec2(remote_window_arrow_button_width,
+                               remote_window_arrow_button_height)) ||
          enter_pressed) {
        connect_button_pressed_ = true;
        bool found = false;
+        std::string target_remote_id;
+        std::string target_password;
+        bool should_connect = false;
+        bool already_connected = false;
+
        for (auto& [id, props] : recent_connections_) {
          if (id.find(remote_id) != std::string::npos) {
            found = true;
-            if (client_properties_.find(remote_id) !=
-                client_properties_.end()) {
-              if (!client_properties_[remote_id]->connection_established_) {
-                ConnectTo(props.remote_id, props.password.c_str(), false);
+            target_remote_id = props.remote_id;
+            target_password = props.password;
+            {
+              // std::shared_lock lock(client_properties_mutex_);
+              if (client_properties_.find(remote_id) !=
+                  client_properties_.end()) {
+                if (!client_properties_[remote_id]->connection_established_) {
+                  should_connect = true;
+                } else {
+                  already_connected = true;
+                }
              } else {
-                // todo: show warning message
-                LOG_INFO("Already connected to [{}]", remote_id);
+                should_connect = true;
              }
-            } else {
-              ConnectTo(props.remote_id, props.password.c_str(), false);
            }
+
+            if (should_connect) {
+              ConnectTo(target_remote_id, target_password.c_str(), false);
+            } else if (already_connected) {
+              LOG_INFO("Already connected to [{}]", remote_id);
+            }
+            break;
          }
        }
-
        if (!found) {
          ConnectTo(remote_id, "", false);
        }
      }

+      // check every 1 second for rejoin
      if (need_to_rejoin_) {
-        need_to_rejoin_ = false;
-        for (const auto& [_, props] : client_properties_) {
-          if (props->rejoin_) {
-            ConnectTo(props->remote_id_, props->remote_password_,
-                      props->remember_password_);
+        auto now = std::chrono::steady_clock::now();
+        auto elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(
+                           now - last_rejoin_check_time_)
+                           .count();
+
+        if (elapsed >= 1000) {
+          last_rejoin_check_time_ = now;
+          need_to_rejoin_ = false;
+          // std::shared_lock lock(client_properties_mutex_);
+          for (const auto& [_, props] : client_properties_) {
+            if (props->rejoin_) {
+              ConnectTo(props->remote_id_, props->remote_password_,
+                        props->remember_password_);
+            }
          }
        }
      }
@@ -132,37 +165,86 @@ static int InputTextCallback(ImGuiInputTextCallbackData* data) {
 }

 int Render::ConnectTo(const std::string& remote_id, const char* password,
-                      bool remember_password) {
+                      bool remember_password, bool bypass_presence_check) {
+  if (!bypass_presence_check && !device_presence_.IsOnline(remote_id)) {
+    int ret =
+        RequestSingleDevicePresence(remote_id, password, remember_password);
+    if (ret != 0) {
+      offline_warning_text_ =
+          localization::device_offline[localization_language_index_];
+      show_offline_warning_window_ = true;
+      LOG_WARN("Presence probe failed for [{}], ret={}", remote_id, ret);
+    } else {
+      LOG_INFO("Presence probe requested for [{}] before connect", remote_id);
+    }
+    return -1;
+  }
+
  LOG_INFO("Connect to [{}]", remote_id);
  focused_remote_id_ = remote_id;

-  if (client_properties_.find(remote_id) == client_properties_.end()) {
-    client_properties_[remote_id] =
-        std::make_shared<SubStreamWindowProperties>();
-    auto props = client_properties_[remote_id];
-    props->local_id_ = "C-" + std::string(client_id_);
-    props->remote_id_ = remote_id;
-    memcpy(&props->params_, &params_, sizeof(Params));
-    props->params_.user_id = props->local_id_.c_str();
-    props->peer_ = CreatePeer(&props->params_);
+  // std::shared_lock shared_lock(client_properties_mutex_);
+  bool exists =
+      (client_properties_.find(remote_id) != client_properties_.end());
+  // shared_lock.unlock();

-    for (auto& display_info : display_info_list_) {
-      AddVideoStream(peer_, display_info.name.c_str());
-    }
-    AddAudioStream(props->peer_, props->audio_label_.c_str());
-    AddDataStream(props->peer_, props->data_label_.c_str());
+  if (!exists) {
+    PeerPtr* peer_to_init = nullptr;
+    std::string local_id;

-    if (props->peer_) {
-      LOG_INFO("[{}] Create peer instance successful", props->local_id_);
-      Init(props->peer_);
-      LOG_INFO("[{}] Peer init finish", props->local_id_);
-    } else {
-      LOG_INFO("Create peer [{}] instance failed", props->local_id_);
+    {
+      // std::unique_lock unique_lock(client_properties_mutex_);
+      if (client_properties_.find(remote_id) == client_properties_.end()) {
+        client_properties_[remote_id] =
+            std::make_shared<SubStreamWindowProperties>();
+        auto props = client_properties_[remote_id];
+        props->local_id_ = "C-" + std::string(client_id_);
+        props->remote_id_ = remote_id;
+        memcpy(&props->params_, &params_, sizeof(Params));
+        props->params_.user_id = props->local_id_.c_str();
+        props->peer_ = CreatePeer(&props->params_);
+
+        props->control_window_width_ = title_bar_height_ * 9.0f;
+        props->control_window_height_ = title_bar_height_ * 1.3f;
+        props->control_window_min_width_ = title_bar_height_ * 0.65f;
+        props->control_window_min_height_ = title_bar_height_ * 1.3f;
+        props->control_window_max_width_ = title_bar_height_ * 9.0f;
+        props->control_window_max_height_ = title_bar_height_ * 7.0f;
+
+        props->connection_status_ = ConnectionStatus::Connecting;
+        show_connection_status_window_ = true;
+
+        if (!props->peer_) {
+          LOG_INFO("Create peer [{}] instance failed", props->local_id_);
+          return -1;
+        }
+
+        for (auto& display_info : display_info_list_) {
+          AddVideoStream(props->peer_, display_info.name.c_str());
+        }
+        AddAudioStream(props->peer_, props->audio_label_.c_str());
+        AddDataStream(props->peer_, props->data_label_.c_str(), false);
+        AddDataStream(props->peer_, props->control_data_label_.c_str(), true);
+        AddDataStream(props->peer_, props->file_label_.c_str(), true);
+        AddDataStream(props->peer_, props->file_feedback_label_.c_str(), true);
+        AddDataStream(props->peer_, props->clipboard_label_.c_str(), true);
+
+        props->connection_status_ = ConnectionStatus::Connecting;
+
+        peer_to_init = props->peer_;
+        local_id = props->local_id_;
+      }
    }

-    props->connection_status_ = ConnectionStatus::Connecting;
+    if (peer_to_init) {
+      LOG_INFO("[{}] Create peer instance successful", local_id);
+      Init(peer_to_init);
+      LOG_INFO("[{}] Peer init finish", local_id);
+    }
  }
+
  int ret = -1;
+  // std::shared_lock read_lock(client_properties_mutex_);
  auto props = client_properties_[remote_id];
  if (!props->connection_established_) {
    props->remember_password_ = remember_password;
@@ -174,15 +256,18 @@ int Render::ConnectTo(const std::string& remote_id, const char* password,
    }

    std::string remote_id_with_pwd = remote_id + "@" + password;
-    ret = JoinConnection(props->peer_, remote_id_with_pwd.c_str());
-    if (0 == ret) {
-      props->rejoin_ = false;
-    } else {
-      props->rejoin_ = true;
-      need_to_rejoin_ = true;
+    if (props->peer_) {
+      ret = JoinConnection(props->peer_, remote_id_with_pwd.c_str());
+      if (0 == ret) {
+        props->rejoin_ = false;
+      } else {
+        props->rejoin_ = true;
+        need_to_rejoin_ = true;
+      }
    }
  }
+  // read_lock.unlock();

  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/render.cpp
+++ b/src/gui/render.cpp
--- a/src/gui/render.h
+++ b/src/gui/render.h
@@ -11,15 +11,21 @@

 #include <atomic>
 #include <chrono>
+#include <filesystem>
 #include <fstream>
 #include <mutex>
+#include <nlohmann/json.hpp>
 #include <optional>
+#include <queue>
+#include <shared_mutex>
 #include <string>
 #include <unordered_map>
+#include <vector>

 #include "IconsFontAwesome6.h"
 #include "config_center.h"
 #include "device_controller_factory.h"
+#include "device_presence.h"
 #include "imgui.h"
 #include "imgui_impl_sdl3.h"
 #include "imgui_impl_sdlrenderer3.h"
@@ -29,6 +35,7 @@
 #include "screen_capturer_factory.h"
 #include "speaker_capturer_factory.h"
 #include "thumbnail.h"
+
 #if _WIN32
 #include "win_tray.h"
 #endif
@@ -36,11 +43,50 @@
 namespace crossdesk {
 class Render {
 public:
+  struct FileTransferState {
+    std::atomic<bool> file_sending_ = false;
+    std::atomic<uint64_t> file_sent_bytes_ = 0;
+    std::atomic<uint64_t> file_total_bytes_ = 0;
+    std::atomic<uint32_t> file_send_rate_bps_ = 0;
+    std::mutex file_transfer_mutex_;
+    std::chrono::steady_clock::time_point file_send_start_time_;
+    std::chrono::steady_clock::time_point file_send_last_update_time_;
+    uint64_t file_send_last_bytes_ = 0;
+    bool file_transfer_window_visible_ = false;
+    std::atomic<uint32_t> current_file_id_{0};
+
+    struct QueuedFile {
+      std::filesystem::path file_path;
+      std::string file_label;
+      std::string remote_id;
+    };
+    std::queue<QueuedFile> file_send_queue_;
+    std::mutex file_queue_mutex_;
+
+    enum class FileTransferStatus { Queued, Sending, Completed, Failed };
+
+    struct FileTransferInfo {
+      std::string file_name;
+      std::filesystem::path file_path;
+      uint64_t file_size = 0;
+      FileTransferStatus status = FileTransferStatus::Queued;
+      uint64_t sent_bytes = 0;
+      uint32_t file_id = 0;
+      uint32_t rate_bps = 0;
+    };
+    std::vector<FileTransferInfo> file_transfer_list_;
+    std::mutex file_transfer_list_mutex_;
+  };
+
  struct SubStreamWindowProperties {
    Params params_;
    PeerPtr* peer_ = nullptr;
    std::string audio_label_ = "control_audio";
-    std::string data_label_ = "control_data";
+    std::string data_label_ = "data";
+    std::string file_label_ = "file";
+    std::string control_data_label_ = "control_data";
+    std::string file_feedback_label_ = "file_feedback";
+    std::string clipboard_label_ = "clipboard";
    std::string local_id_ = "";
    std::string remote_id_ = "";
    bool exit_ = false;
@@ -49,7 +95,7 @@ class Render {
    bool connection_established_ = false;
    bool rejoin_ = false;
    bool net_traffic_stats_button_pressed_ = false;
-    bool mouse_control_button_pressed_ = true;
+    bool enable_mouse_control_ = true;
    bool mouse_controller_is_started_ = false;
    bool audio_capture_button_pressed_ = true;
    bool control_mouse_ = true;
@@ -68,18 +114,23 @@ class Render {
    float sub_stream_window_height_ = 720;
    float control_window_min_width_ = 20;
    float control_window_max_width_ = 230;
-    float control_window_min_height_ = 40;
-    float control_window_max_height_ = 170;
+    float control_window_min_height_ = 38;
+    float control_window_max_height_ = 180;
    float control_window_width_ = 230;
-    float control_window_height_ = 40;
+    float control_window_height_ = 38;
    float control_bar_pos_x_ = 0;
    float control_bar_pos_y_ = 30;
    float mouse_diff_control_bar_pos_x_ = 0;
    float mouse_diff_control_bar_pos_y_ = 0;
    double control_bar_button_pressed_time_ = 0;
    double net_traffic_stats_button_pressed_time_ = 0;
-    unsigned char* dst_buffer_ = nullptr;
-    size_t dst_buffer_capacity_ = 0;
+    // Double-buffered NV12 frame storage. Written by decode callback thread,
+    // consumed by SDL main thread.
+    std::mutex video_frame_mutex_;
+    std::shared_ptr<std::vector<unsigned char>> front_frame_;
+    std::shared_ptr<std::vector<unsigned char>> back_frame_;
+    bool render_rect_dirty_ = false;
+    bool stream_cleanup_pending_ = false;
    float mouse_pos_x_ = 0;
    float mouse_pos_y_ = 0;
    float mouse_pos_x_last_ = 0;
@@ -118,6 +169,11 @@ class Render {
    int frame_count_ = 0;
    std::chrono::steady_clock::time_point last_time_;
    XNetTrafficStats net_traffic_stats_;
+
+    using QueuedFile = FileTransferState::QueuedFile;
+    using FileTransferStatus = FileTransferState::FileTransferStatus;
+    using FileTransferInfo = FileTransferState::FileTransferInfo;
+    FileTransferState file_transfer_;
  };

 public:
@@ -137,7 +193,10 @@ class Render {
  void UpdateLabels();
  void UpdateInteractions();
  void HandleRecentConnections();
+  void HandleConnectionStatusChange();
+  void HandlePendingPresenceProbe();
  void HandleStreamWindow();
+  void HandleServerWindow();
  void Cleanup();
  void CleanupFactories();
  void CleanupPeer(std::shared_ptr<SubStreamWindowProperties> props);
@@ -147,17 +206,29 @@ class Render {
  void UpdateRenderRect();
  void ProcessSdlEvent(const SDL_Event& event);

+  void ProcessFileDropEvent(const SDL_Event& event);
+
+  void ProcessSelectedFile(
+      const std::string& path,
+      const std::shared_ptr<SubStreamWindowProperties>& props,
+      const std::string& file_label, const std::string& remote_id = "");
+
+  std::shared_ptr<SubStreamWindowProperties>
+  GetSubStreamWindowPropertiesByRemoteId(const std::string& remote_id);
+
 private:
  int CreateStreamRenderWindow();
  int TitleBar(bool main_window);
  int MainWindow();
+  int UpdateNotificationWindow();
  int StreamWindow();
+  int ServerWindow();
+  int RemoteClientInfoWindow();
  int LocalWindow();
  int RemoteWindow();
  int RecentConnectionsWindow();
  int SettingWindow();
  int SelfHostedServerWindow();
-  int ShowSimpleFileBrowser();
  int ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props);
  int ControlBar(std::shared_ptr<SubStreamWindowProperties>& props);
  int AboutWindow();
@@ -165,50 +236,76 @@ class Render {
  bool ConnectionStatusWindow(
      std::shared_ptr<SubStreamWindowProperties>& props);
  int ShowRecentConnections();
+  bool OpenUrl(const std::string& url);
+  void Hyperlink(const std::string& label, const std::string& url,
+                 const float window_width);
+  int FileTransferWindow(std::shared_ptr<SubStreamWindowProperties>& props);
+  std::string OpenFileDialog(std::string title);

 private:
  int ConnectTo(const std::string& remote_id, const char* password,
-                bool remember_password);
+                bool remember_password, bool bypass_presence_check = false);
+  int RequestSingleDevicePresence(const std::string& remote_id,
+                                  const char* password, bool remember_password);
  int CreateMainWindow();
  int DestroyMainWindow();
  int CreateStreamWindow();
  int DestroyStreamWindow();
-  int SetupFontAndStyle();
-  int SetupMainWindow();
+  int CreateServerWindow();
+  int DestroyServerWindow();
+  int SetupFontAndStyle(ImFont** system_chinese_font_out);
  int DestroyMainWindowContext();
-  int SetupStreamWindow();
  int DestroyStreamWindowContext();
+  int DestroyServerWindowContext();
  int DrawMainWindow();
  int DrawStreamWindow();
+  int DrawServerWindow();
  int ConfirmDeleteConnection();
+  int OfflineWarningWindow();
  int NetTrafficStats(std::shared_ptr<SubStreamWindowProperties>& props);
  void DrawConnectionStatusText(
      std::shared_ptr<SubStreamWindowProperties>& props);
+  void DrawReceivingScreenText(
+      std::shared_ptr<SubStreamWindowProperties>& props);
+#ifdef __APPLE__
+  int RequestPermissionWindow();
+  bool CheckScreenRecordingPermission();
+  bool CheckAccessibilityPermission();
+  void OpenScreenRecordingPreferences();
+  void OpenAccessibilityPreferences();
+  bool DrawToggleSwitch(const char* id, bool active, bool enabled);
+#endif

 public:
  static void OnReceiveVideoBufferCb(const XVideoFrame* video_frame,
                                     const char* user_id, size_t user_id_size,
+                                     const char* src_id, size_t src_id_size,
                                     void* user_data);

  static void OnReceiveAudioBufferCb(const char* data, size_t size,
                                     const char* user_id, size_t user_id_size,
+                                     const char* src_id, size_t src_id_size,
                                     void* user_data);

  static void OnReceiveDataBufferCb(const char* data, size_t size,
                                    const char* user_id, size_t user_id_size,
+                                    const char* src_id, size_t src_id_size,
                                    void* user_data);

  static void OnSignalStatusCb(SignalStatus status, const char* user_id,
                               size_t user_id_size, void* user_data);

+  static void OnSignalMessageCb(const char* message, size_t size,
+                                void* user_data);
+
  static void OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
                                   size_t user_id_size, void* user_data);

-  static void NetStatusReport(const char* client_id, size_t client_id_size,
-                              TraversalMode mode,
-                              const XNetTrafficStats* net_traffic_stats,
-                              const char* user_id, const size_t user_id_size,
-                              void* user_data);
+  static void OnNetStatusReport(const char* client_id, size_t client_id_size,
+                                TraversalMode mode,
+                                const XNetTrafficStats* net_traffic_stats,
+                                const char* user_id, const size_t user_id_size,
+                                void* user_data);

  static SDL_HitTestResult HitTestCallback(SDL_Window* window,
                                           const SDL_Point* area, void* data);
@@ -246,6 +343,13 @@ class Render {

  int CreateConnectionPeer();

+  // File transfer helper functions
+  void StartFileTransfer(std::shared_ptr<SubStreamWindowProperties> props,
+                         const std::filesystem::path& file_path,
+                         const std::string& file_label,
+                         const std::string& remote_id = "");
+  void ProcessFileQueue(std::shared_ptr<SubStreamWindowProperties> props);
+
  int AudioDeviceInit();
  int AudioDeviceDestroy();

@@ -264,14 +368,30 @@ class Render {
    unsigned char iv[16];
  };

+  struct CDCacheV2 {
+    char client_id_with_password[17];
+    int language;
+    int video_quality;
+    int video_frame_rate;
+    int video_encode_format;
+    bool enable_hardware_video_codec;
+    bool enable_turn;
+    bool enable_srtp;
+
+    unsigned char key[16];
+    unsigned char iv[16];
+
+    char self_hosted_id[17];
+  };
+
 private:
  CDCache cd_cache_;
+  CDCacheV2 cd_cache_v2_;
  std::mutex cd_cache_mutex_;
  std::unique_ptr<ConfigCenter> config_center_;
  ConfigCenter::LANGUAGE localization_language_ =
      ConfigCenter::LANGUAGE::CHINESE;
  std::unique_ptr<PathManager> path_manager_;
-  std::string cert_path_;
  std::string exec_log_path_;
  std::string dll_log_path_;
  std::string cache_path_;
@@ -281,25 +401,33 @@ class Render {
  /* ------ all windows property start ------ */
  float title_bar_width_ = 640;
  float title_bar_height_ = 30;
+  float title_bar_button_width_ = 30;
+  float title_bar_button_height_ = 30;
  /* ------ all windows property end ------ */

  /* ------ main window property start ------ */
  // thumbnail
  unsigned char aes128_key_[16];
  unsigned char aes128_iv_[16];
-  std::unique_ptr<Thumbnail> thumbnail_;
+  std::shared_ptr<Thumbnail> thumbnail_;

  // recent connections
  std::vector<std::pair<std::string, Thumbnail::RecentConnection>>
      recent_connections_;
+  std::vector<std::string> recent_connection_ids_;
  int recent_connection_image_width_ = 160;
  int recent_connection_image_height_ = 90;
  uint32_t recent_connection_image_save_time_ = 0;
+  DevicePresence device_presence_;
+  bool need_to_send_recent_connections_ = true;

  // main window render
  SDL_Window* main_window_ = nullptr;
  SDL_Renderer* main_renderer_ = nullptr;
  ImGuiContext* main_ctx_ = nullptr;
+  ImFont* main_windows_system_chinese_font_ = nullptr;
+  ImFont* stream_windows_system_chinese_font_ = nullptr;
+  ImFont* server_windows_system_chinese_font_ = nullptr;
  bool exit_ = false;
  const int sdl_refresh_ms_ = 16;  // ~60 FPS
 #if _WIN32
@@ -307,24 +435,30 @@ class Render {
 #endif

  // main window properties
-  std::string latest_version_ = "";
+  nlohmann::json latest_version_info_ = nlohmann::json{};
  bool update_available_ = false;
+  std::string latest_version_ = "";
+  std::string release_notes_ = "";
  bool start_mouse_controller_ = false;
  bool mouse_controller_is_started_ = false;
  bool start_screen_capturer_ = false;
  bool screen_capturer_is_started_ = false;
  bool start_speaker_capturer_ = false;
  bool speaker_capturer_is_started_ = false;
-  bool start_keyboard_capturer_ = true;
+  bool start_keyboard_capturer_ = false;
  bool show_cursor_ = false;
  bool keyboard_capturer_is_started_ = false;
  bool foucs_on_main_window_ = false;
-  bool foucs_on_stream_window_ = false;
+  bool focus_on_stream_window_ = false;
+  bool main_window_minimized_ = false;
+  uint32_t last_main_minimize_request_tick_ = 0;
+  uint32_t last_stream_minimize_request_tick_ = 0;
  bool audio_capture_ = false;
  int main_window_width_real_ = 720;
  int main_window_height_real_ = 540;
  float main_window_dpi_scaling_w_ = 1.0f;
  float main_window_dpi_scaling_h_ = 1.0f;
+  float dpi_scale_ = 1.0f;
  float main_window_width_default_ = 640;
  float main_window_height_default_ = 480;
  float main_window_width_ = 640;
@@ -349,6 +483,8 @@ class Render {
  float notification_window_height_ = 80;
  float about_window_width_ = 300;
  float about_window_height_ = 170;
+  float update_notification_window_width_ = 400;
+  float update_notification_window_height_ = 320;
  int screen_width_ = 1280;
  int screen_height_ = 720;
  int selected_display_ = 0;
@@ -362,10 +498,11 @@ class Render {
  int audio_len_ = 0;
  bool audio_buffer_fresh_ = false;
  bool need_to_rejoin_ = false;
+  std::chrono::steady_clock::time_point last_rejoin_check_time_;
  bool just_created_ = false;
  std::string controlled_remote_id_ = "";
  std::string focused_remote_id_ = "";
-  bool need_to_send_host_info_ = false;
+  std::string remote_client_id_ = "";
  SDL_Event last_mouse_event;
  SDL_AudioStream* output_stream_;
  uint32_t STREAM_REFRESH_EVENT = 0;
@@ -392,6 +529,44 @@ class Render {
  float stream_window_dpi_scaling_w_ = 1.0f;
  float stream_window_dpi_scaling_h_ = 1.0f;

+  // server window render
+  SDL_Window* server_window_ = nullptr;
+  SDL_Renderer* server_renderer_ = nullptr;
+  ImGuiContext* server_ctx_ = nullptr;
+
+  // server window properties
+  bool need_to_create_server_window_ = false;
+  bool need_to_destroy_server_window_ = false;
+  bool server_window_created_ = false;
+  bool server_window_inited_ = false;
+  int server_window_width_default_ = 250;
+  int server_window_height_default_ = 150;
+  float server_window_width_ = 250;
+  float server_window_height_ = 150;
+  float server_window_title_bar_height_ = 30.0f;
+  SDL_PixelFormat server_pixformat_ = SDL_PIXELFORMAT_NV12;
+  int server_window_normal_width_ = 250;
+  int server_window_normal_height_ = 150;
+  float server_window_dpi_scaling_w_ = 1.0f;
+  float server_window_dpi_scaling_h_ = 1.0f;
+  float window_rounding_ = 6.0f;
+  float window_rounding_default_ = 6.0f;
+
+  // server window collapsed mode
+  bool server_window_collapsed_ = false;
+  bool server_window_collapsed_dragging_ = false;
+  float server_window_collapsed_drag_start_mouse_x_ = 0.0f;
+  float server_window_collapsed_drag_start_mouse_y_ = 0.0f;
+  int server_window_collapsed_drag_start_win_x_ = 0;
+  int server_window_collapsed_drag_start_win_y_ = 0;
+
+  // server window drag normal mode
+  bool server_window_dragging_ = false;
+  float server_window_drag_start_mouse_x_ = 0.0f;
+  float server_window_drag_start_mouse_y_ = 0.0f;
+  int server_window_drag_start_win_x_ = 0;
+  int server_window_drag_start_win_y_ = 0;
+
  bool label_inited_ = false;
  bool connect_button_pressed_ = false;
  bool password_validating_ = false;
@@ -404,14 +579,18 @@ class Render {
  bool show_about_window_ = false;
  bool show_connection_status_window_ = false;
  bool show_reset_password_window_ = false;
+  bool show_update_notification_window_ = false;
  bool fullscreen_button_pressed_ = false;
  bool focus_on_input_widget_ = true;
  bool is_client_mode_ = false;
+  bool is_server_mode_ = false;
  bool reload_recent_connections_ = true;
  bool show_confirm_delete_connection_ = false;
+  bool show_offline_warning_window_ = false;
  bool delete_connection_ = false;
  bool is_tab_bar_hovered_ = false;
  std::string delete_connection_name_ = "";
+  std::string offline_warning_text_ = "";
  bool re_enter_remote_id_ = false;
  double copy_start_time_ = 0;
  SignalStatus signal_status_ = SignalStatus::SignalClosed;
@@ -423,7 +602,20 @@ class Render {
  std::string video_secondary_label_ = "secondary_display";
  std::string audio_label_ = "audio";
  std::string data_label_ = "data";
+  std::string info_label_ = "info";
+  std::string control_data_label_ = "control_data";
+  std::string file_label_ = "file";
+  std::string file_feedback_label_ = "file_feedback";
+  std::string clipboard_label_ = "clipboard";
  Params params_;
+  // Map file_id to props for tracking file transfer progress via ACK
+  std::unordered_map<uint32_t, std::weak_ptr<SubStreamWindowProperties>>
+      file_id_to_props_;
+  std::shared_mutex file_id_to_props_mutex_;
+
+  // Map file_id to FileTransferState for global file transfer (props == null)
+  std::unordered_map<uint32_t, FileTransferState*> file_id_to_transfer_state_;
+  std::shared_mutex file_id_to_transfer_state_mutex_;
  SDL_AudioDeviceID input_dev_;
  SDL_AudioDeviceID output_dev_;
  ScreenCapturerFactory* screen_capturer_factory_ = nullptr;
@@ -437,30 +629,34 @@ class Render {
  uint64_t last_frame_time_;
  bool show_new_version_icon_ = false;
  bool show_new_version_icon_in_menu_ = true;
-  uint64_t new_version_icon_last_trigger_time_ = 0;
-  uint64_t new_version_icon_render_start_time_ = 0;
+  double new_version_icon_last_trigger_time_ = 0.0;
+  double new_version_icon_render_start_time_ = 0.0;
+#ifdef __APPLE__
+  bool show_request_permission_window_ = true;
+#endif
  char client_id_[10] = "";
  char client_id_display_[12] = "";
  char client_id_with_password_[17] = "";
  char password_saved_[7] = "";
+  char self_hosted_id_[17] = "";
+  char self_hosted_user_id_[17] = "";
  int language_button_value_ = 0;
-  int video_quality_button_value_ = 0;
+  int video_quality_button_value_ = 2;
  int video_frame_rate_button_value_ = 1;
  int video_encode_format_button_value_ = 0;
-  bool enable_hardware_video_codec_ = false;
-  bool enable_turn_ = false;
+  bool enable_hardware_video_codec_ = true;
+  bool enable_turn_ = true;
  bool enable_srtp_ = false;
  char signal_server_ip_[256] = "api.crossdesk.cn";
  char signal_server_port_[6] = "9099";
  char coturn_server_port_[6] = "3478";
-  char cert_file_path_[256] = "";
  bool enable_self_hosted_ = false;
  int language_button_value_last_ = 0;
  int video_quality_button_value_last_ = 0;
  int video_frame_rate_button_value_last_ = 0;
  int video_encode_format_button_value_last_ = 0;
  bool enable_hardware_video_codec_last_ = false;
-  bool enable_turn_last_ = false;
+  bool enable_turn_last_ = true;
  bool enable_srtp_last_ = false;
  bool enable_self_hosted_last_ = false;
  bool enable_autostart_ = false;
@@ -469,10 +665,11 @@ class Render {
  bool enable_daemon_last_ = false;
  bool enable_minimize_to_tray_ = false;
  bool enable_minimize_to_tray_last_ = false;
+  char file_transfer_save_path_buf_[512] = "";
+  std::string file_transfer_save_path_last_ = "";
  char signal_server_ip_self_[256] = "";
  char signal_server_port_self_[6] = "";
  char coturn_server_port_self_[6] = "";
-  std::string tls_cert_path_self_ = "";
  bool settings_window_pos_reset_ = true;
  bool self_hosted_server_config_window_pos_reset_ = true;
  std::string selected_current_file_path_ = "";
@@ -482,11 +679,28 @@ class Render {
  /* ------ sub stream window property start ------ */
  std::unordered_map<std::string, std::shared_ptr<SubStreamWindowProperties>>
      client_properties_;
+  std::shared_mutex client_properties_mutex_;
  void CloseTab(decltype(client_properties_)::iterator& it);
  /* ------ stream window property end ------ */

+  /* ------ async thumbnail save tasks ------ */
+  std::vector<std::thread> thumbnail_save_threads_;
+  std::mutex thumbnail_save_threads_mutex_;
+  void WaitForThumbnailSaveTasks();
+
  /* ------ server mode ------ */
  std::unordered_map<std::string, ConnectionStatus> connection_status_;
+  std::unordered_map<std::string, std::string> connection_host_names_;
+  std::string selected_server_remote_id_ = "";
+  std::string selected_server_remote_hostname_ = "";
+  std::mutex pending_presence_probe_mutex_;
+  bool pending_presence_probe_ = false;
+  bool pending_presence_result_ready_ = false;
+  bool pending_presence_online_ = false;
+  std::string pending_presence_remote_id_ = "";
+  std::string pending_presence_password_ = "";
+  bool pending_presence_remember_password_ = false;
+  FileTransferState file_transfer_;
 };
 }  // namespace crossdesk
-#endif
+#endif
--- a/src/gui/render_callback.cpp
+++ b/src/gui/render_callback.cpp
@@ -1,7 +1,18 @@
+#include <chrono>
 #include <cmath>
+#include <cstdlib>
+#include <cstring>
+#include <filesystem>
+#include <fstream>
+#include <limits>
+#include <unordered_map>
+#include <unordered_set>

+#include "clipboard.h"
 #include "device_controller.h"
+#include "file_transfer.h"
 #include "localization.h"
+#include "minirtc.h"
 #include "platform.h"
 #include "rd_log.h"
 #include "render.h"
@@ -10,6 +21,65 @@

 namespace crossdesk {

+void Render::OnSignalMessageCb(const char* message, size_t size,
+                               void* user_data) {
+  Render* render = (Render*)user_data;
+  if (!render || !message || size == 0) {
+    return;
+  }
+  std::string s(message, size);
+  auto j = nlohmann::json::parse(s, nullptr, false);
+  if (j.is_discarded() || !j.contains("type") || !j["type"].is_string()) {
+    return;
+  }
+  std::string type = j["type"].get<std::string>();
+  if (type == "presence") {
+    if (j.contains("devices") && j["devices"].is_array()) {
+      for (auto& dev : j["devices"]) {
+        if (!dev.is_object()) {
+          continue;
+        }
+        if (!dev.contains("id") || !dev["id"].is_string()) {
+          continue;
+        }
+        if (!dev.contains("online") || !dev["online"].is_boolean()) {
+          continue;
+        }
+        std::string id = dev["id"].get<std::string>();
+        bool online = dev["online"].get<bool>();
+        render->device_presence_.SetOnline(id, online);
+        {
+          std::lock_guard<std::mutex> lock(
+              render->pending_presence_probe_mutex_);
+          if (render->pending_presence_probe_ &&
+              render->pending_presence_remote_id_ == id) {
+            render->pending_presence_result_ready_ = true;
+            render->pending_presence_online_ = online;
+          }
+        }
+      }
+    }
+  } else if (type == "presence_update") {
+    if (j.contains("id") && j["id"].is_string() && j.contains("online") &&
+        j["online"].is_boolean()) {
+      std::string id = j["id"].get<std::string>();
+      bool online = j["online"].get<bool>();
+      if (!id.empty()) {
+        render->device_presence_.SetOnline(id, online);
+        {
+          std::lock_guard<std::mutex> lock(
+              render->pending_presence_probe_mutex_);
+          if (render->pending_presence_probe_ &&
+              render->pending_presence_remote_id_ == id) {
+            render->pending_presence_result_ready_ = true;
+            render->pending_presence_online_ = online;
+          }
+        }
+      }
+    }
+  }
+}
+
 int Render::SendKeyCommand(int key_code, bool is_down) {
  RemoteAction remote_action;
  remote_action.type = ControlType::keyboard;
@@ -20,11 +90,13 @@ int Render::SendKeyCommand(int key_code, bool is_down) {
  }
  remote_action.k.key_value = key_code;

-  if (!controlled_remote_id_.empty()) {
-    if (client_properties_.find(controlled_remote_id_) !=
-        client_properties_.end()) {
-      auto props = client_properties_[controlled_remote_id_];
-      if (props->connection_status_ == ConnectionStatus::Connected) {
+  std::string target_id = controlled_remote_id_.empty() ? focused_remote_id_
+                                                        : controlled_remote_id_;
+  if (!target_id.empty()) {
+    if (client_properties_.find(target_id) != client_properties_.end()) {
+      auto props = client_properties_[target_id];
+      if (props->connection_status_ == ConnectionStatus::Connected &&
+          props->peer_) {
        std::string msg = remote_action.to_json();
        SendDataFrame(props->peer_, msg.c_str(), msg.size(),
                      props->data_label_.c_str());
@@ -42,6 +114,7 @@ int Render::ProcessMouseEvent(const SDL_Event& event) {
  float ratio_x, ratio_y = 0;
  RemoteAction remote_action;

+  // std::shared_lock lock(client_properties_mutex_);
  for (auto& it : client_properties_) {
    auto props = it.second;
    if (!props->control_mouse_) {
@@ -90,12 +163,13 @@ int Render::ProcessMouseEvent(const SDL_Event& event) {
      }

      if (props->control_bar_hovered_ || props->display_selectable_hovered_) {
-        remote_action.m.flag = MouseFlag::move;
+        break;
+      }
+      if (props->peer_) {
+        std::string msg = remote_action.to_json();
+        SendDataFrame(props->peer_, msg.c_str(), msg.size(),
+                      props->data_label_.c_str());
      }
-
-      std::string msg = remote_action.to_json();
-      SendDataFrame(props->peer_, msg.c_str(), msg.size(),
-                    props->data_label_.c_str());
    } else if (SDL_EVENT_MOUSE_WHEEL == event.type &&
               last_mouse_event.button.x >= props->stream_render_rect_.x &&
               last_mouse_event.button.x <= props->stream_render_rect_.x +
@@ -138,9 +212,14 @@ int Render::ProcessMouseEvent(const SDL_Event& event) {
          (float)(last_mouse_event.button.y - props->stream_render_rect_.y) /
          render_height;

-      std::string msg = remote_action.to_json();
-      SendDataFrame(props->peer_, msg.c_str(), msg.size(),
-                    props->data_label_.c_str());
+      if (props->control_bar_hovered_) {
+        continue;
+      }
+      if (props->peer_) {
+        std::string msg = remote_action.to_json();
+        SendDataFrame(props->peer_, msg.c_str(), msg.size(),
+                      props->data_label_.c_str());
+      }
    }
  }

@@ -154,11 +233,14 @@ void Render::SdlCaptureAudioIn(void* userdata, Uint8* stream, int len) {
  }

  if (1) {
-    for (auto it : render->client_properties_) {
+    // std::shared_lock lock(render->client_properties_mutex_);
+    for (const auto& it : render->client_properties_) {
      auto props = it.second;
      if (props->connection_status_ == ConnectionStatus::Connected) {
-        SendAudioFrame(props->peer_, (const char*)stream, len,
-                       render->audio_label_.c_str());
+        if (props->peer_) {
+          SendAudioFrame(props->peer_, (const char*)stream, len,
+                         render->audio_label_.c_str());
+        }
      }
    }

@@ -200,6 +282,7 @@ void Render::SdlCaptureAudioOut([[maybe_unused]] void* userdata,

 void Render::OnReceiveVideoBufferCb(const XVideoFrame* video_frame,
                                    const char* user_id, size_t user_id_size,
+                                    const char* src_id, size_t src_id_size,
                                    void* user_data) {
  Render* render = (Render*)user_data;
  if (!render) {
@@ -207,6 +290,7 @@ void Render::OnReceiveVideoBufferCb(const XVideoFrame* video_frame,
  }

  std::string remote_id(user_id, user_id_size);
+  // std::shared_lock lock(render->client_properties_mutex_);
  if (render->client_properties_.find(remote_id) ==
      render->client_properties_.end()) {
    return;
@@ -215,31 +299,31 @@ void Render::OnReceiveVideoBufferCb(const XVideoFrame* video_frame,
      render->client_properties_.find(remote_id)->second.get();

  if (props->connection_established_) {
-    if (!props->dst_buffer_) {
-      props->dst_buffer_capacity_ = video_frame->size;
-      props->dst_buffer_ = new unsigned char[video_frame->size];
-    }
+    {
+      std::lock_guard<std::mutex> lock(props->video_frame_mutex_);

-    if (props->dst_buffer_capacity_ < video_frame->size) {
-      delete props->dst_buffer_;
-      props->dst_buffer_capacity_ = video_frame->size;
-      props->dst_buffer_ = new unsigned char[video_frame->size];
-    }
+      if (!props->back_frame_) {
+        props->back_frame_ =
+            std::make_shared<std::vector<unsigned char>>(video_frame->size);
+      }
+      if (props->back_frame_->size() != video_frame->size) {
+        props->back_frame_->resize(video_frame->size);
+      }

-    memcpy(props->dst_buffer_, video_frame->data, video_frame->size);
-    bool need_to_update_render_rect = false;
-    if (props->video_width_ != props->video_width_last_ ||
-        props->video_height_ != props->video_height_last_) {
-      need_to_update_render_rect = true;
-      props->video_width_last_ = props->video_width_;
-      props->video_height_last_ = props->video_height_;
-    }
-    props->video_width_ = video_frame->width;
-    props->video_height_ = video_frame->height;
-    props->video_size_ = video_frame->size;
+      std::memcpy(props->back_frame_->data(), video_frame->data,
+                  video_frame->size);

-    if (need_to_update_render_rect) {
-      render->UpdateRenderRect();
+      const bool size_changed = (props->video_width_ != video_frame->width) ||
+                                (props->video_height_ != video_frame->height);
+      if (size_changed) {
+        props->render_rect_dirty_ = true;
+      }
+
+      props->video_width_ = video_frame->width;
+      props->video_height_ = video_frame->height;
+      props->video_size_ = video_frame->size;
+
+      props->front_frame_.swap(props->back_frame_);
    }

    SDL_Event event;
@@ -266,6 +350,7 @@ void Render::OnReceiveVideoBufferCb(const XVideoFrame* video_frame,

 void Render::OnReceiveAudioBufferCb(const char* data, size_t size,
                                    const char* user_id, size_t user_id_size,
+                                    const char* src_id, size_t src_id_size,
                                    void* user_data) {
  Render* render = (Render*)user_data;
  if (!render) {
@@ -285,12 +370,234 @@ void Render::OnReceiveAudioBufferCb(const char* data, size_t size,

 void Render::OnReceiveDataBufferCb(const char* data, size_t size,
                                   const char* user_id, size_t user_id_size,
+                                   const char* src_id, size_t src_id_size,
                                   void* user_data) {
  Render* render = (Render*)user_data;
  if (!render) {
    return;
  }

+  std::string source_id = std::string(src_id, src_id_size);
+  if (source_id == render->file_label_) {
+    std::string remote_user_id = std::string(user_id, user_id_size);
+
+    static FileReceiver receiver;
+    // Update output directory from config
+    std::string configured_path =
+        render->config_center_->GetFileTransferSavePath();
+    if (!configured_path.empty()) {
+      receiver.SetOutputDir(std::filesystem::u8path(configured_path));
+    } else if (receiver.OutputDir().empty()) {
+      receiver = FileReceiver();  // re-init with default desktop path
+    }
+    receiver.SetOnSendAck([render,
+                           remote_user_id](const FileTransferAck& ack) -> int {
+      bool is_server_sending = remote_user_id.rfind("C-", 0) != 0;
+      if (is_server_sending) {
+        auto props =
+            render->GetSubStreamWindowPropertiesByRemoteId(remote_user_id);
+        if (props) {
+          PeerPtr* peer = props->peer_;
+          return SendReliableDataFrame(
+              peer, reinterpret_cast<const char*>(&ack),
+              sizeof(FileTransferAck), render->file_feedback_label_.c_str());
+        }
+      }
+
+      return SendReliableDataFrame(
+          render->peer_, reinterpret_cast<const char*>(&ack),
+          sizeof(FileTransferAck), render->file_feedback_label_.c_str());
+    });
+
+    receiver.OnData(data, size);
+    return;
+  } else if (source_id == render->clipboard_label_) {
+    if (size > 0) {
+      std::string remote_user_id(user_id, user_id_size);
+      auto props =
+          render->GetSubStreamWindowPropertiesByRemoteId(remote_user_id);
+      if (props && !props->enable_mouse_control_) {
+        return;
+      }
+
+      std::string clipboard_text(data, size);
+      if (!Clipboard::SetText(clipboard_text)) {
+        LOG_ERROR("Failed to set clipboard content from remote");
+      }
+    }
+    return;
+  } else if (source_id == render->file_feedback_label_) {
+    if (size < sizeof(FileTransferAck)) {
+      LOG_ERROR("FileTransferAck: buffer too small, size={}", size);
+      return;
+    }
+
+    FileTransferAck ack{};
+    memcpy(&ack, data, sizeof(FileTransferAck));
+
+    if (ack.magic != kFileAckMagic) {
+      LOG_ERROR(
+          "FileTransferAck: invalid magic, got 0x{:08X}, expected 0x{:08X}",
+          ack.magic, kFileAckMagic);
+      return;
+    }
+
+    std::shared_ptr<SubStreamWindowProperties> props = nullptr;
+    {
+      std::shared_lock lock(render->file_id_to_props_mutex_);
+      auto it = render->file_id_to_props_.find(ack.file_id);
+      if (it != render->file_id_to_props_.end()) {
+        props = it->second.lock();
+      }
+    }
+
+    Render::FileTransferState* state = nullptr;
+    if (!props) {
+      {
+        std::shared_lock lock(render->file_id_to_transfer_state_mutex_);
+        auto it = render->file_id_to_transfer_state_.find(ack.file_id);
+        if (it != render->file_id_to_transfer_state_.end()) {
+          state = it->second;
+        }
+      }
+
+      if (!state) {
+        LOG_WARN("FileTransferAck: no props/state found for file_id={}",
+                 ack.file_id);
+        return;
+      }
+    } else {
+      state = &props->file_transfer_;
+    }
+
+    // Update progress based on ACK
+    state->file_sent_bytes_ = ack.acked_offset;
+    state->file_total_bytes_ = ack.total_size;
+
+    uint32_t rate_bps = 0;
+    {
+      if (props) {
+        uint32_t data_channel_bitrate =
+            props->net_traffic_stats_.data_outbound_stats.bitrate;
+
+        if (data_channel_bitrate > 0 && state->file_sending_.load()) {
+          rate_bps = static_cast<uint32_t>(data_channel_bitrate * 0.99f);
+
+          uint32_t current_rate = state->file_send_rate_bps_.load();
+          if (current_rate > 0) {
+            // 70% old + 30% new for smoother display
+            rate_bps =
+                static_cast<uint32_t>(current_rate * 0.7 + rate_bps * 0.3);
+          }
+        } else {
+          rate_bps = state->file_send_rate_bps_.load();
+        }
+      } else {
+        // Global transfer: no per-connection bitrate available.
+        // Estimate send rate from ACKed bytes delta over time.
+        const uint32_t current_rate = state->file_send_rate_bps_.load();
+        uint32_t estimated_rate_bps = 0;
+        const auto now = std::chrono::steady_clock::now();
+
+        uint64_t last_bytes = 0;
+        std::chrono::steady_clock::time_point last_time;
+        {
+          std::lock_guard<std::mutex> lock(state->file_transfer_mutex_);
+          last_bytes = state->file_send_last_bytes_;
+          last_time = state->file_send_last_update_time_;
+        }
+
+        if (state->file_sending_.load() && ack.acked_offset >= last_bytes) {
+          const uint64_t delta_bytes = ack.acked_offset - last_bytes;
+          const double delta_seconds =
+              std::chrono::duration<double>(now - last_time).count();
+
+          if (delta_seconds > 0.0 && delta_bytes > 0) {
+            const double bps =
+                (static_cast<double>(delta_bytes) * 8.0) / delta_seconds;
+            if (bps > 0.0) {
+              const double capped =
+                  (std::min)(bps, static_cast<double>(
+                                      (std::numeric_limits<uint32_t>::max)()));
+              estimated_rate_bps = static_cast<uint32_t>(capped);
+            }
+          }
+        }
+
+        if (estimated_rate_bps > 0 && current_rate > 0) {
+          // 70% old + 30% new for smoother display
+          rate_bps = static_cast<uint32_t>(current_rate * 0.7 +
+                                           estimated_rate_bps * 0.3);
+        } else if (estimated_rate_bps > 0) {
+          rate_bps = estimated_rate_bps;
+        } else {
+          rate_bps = current_rate;
+        }
+      }
+
+      state->file_send_rate_bps_ = rate_bps;
+      state->file_send_last_bytes_ = ack.acked_offset;
+      auto now = std::chrono::steady_clock::now();
+      state->file_send_last_update_time_ = now;
+    }
+
+    // Update file transfer list: update progress and rate
+    {
+      std::lock_guard<std::mutex> lock(state->file_transfer_list_mutex_);
+      for (auto& info : state->file_transfer_list_) {
+        if (info.file_id == ack.file_id) {
+          info.sent_bytes = ack.acked_offset;
+          info.file_size = ack.total_size;
+          info.rate_bps = rate_bps;
+          break;
+        }
+      }
+    }
+
+    // Check if transfer is completed
+    if ((ack.flags & 0x01) != 0) {
+      // Transfer completed - receiver has finished receiving the file
+      // Reopen window if it was closed by user
+      state->file_transfer_window_visible_ = true;
+      state->file_sending_ = false;  // Mark sending as finished
+      LOG_INFO(
+          "File transfer completed via ACK, file_id={}, total_size={}, "
+          "acked_offset={}",
+          ack.file_id, ack.total_size, ack.acked_offset);
+
+      // Update file transfer list: mark as completed
+      {
+        std::lock_guard<std::mutex> lock(state->file_transfer_list_mutex_);
+        for (auto& info : state->file_transfer_list_) {
+          if (info.file_id == ack.file_id) {
+            info.status =
+                Render::FileTransferState::FileTransferStatus::Completed;
+            info.sent_bytes = ack.total_size;
+            break;
+          }
+        }
+      }
+
+      // Unregister file_id mapping after completion
+      {
+        if (props) {
+          std::lock_guard<std::shared_mutex> lock(
+              render->file_id_to_props_mutex_);
+          render->file_id_to_props_.erase(ack.file_id);
+        } else {
+          std::lock_guard<std::shared_mutex> lock(
+              render->file_id_to_transfer_state_mutex_);
+          render->file_id_to_transfer_state_.erase(ack.file_id);
+        }
+      }
+
+      // Process next file in queue
+      render->ProcessFileQueue(props);
+    }
+
+    return;
+  }
+
  std::string json_str(data, size);
  RemoteAction remote_action;

@@ -302,24 +609,33 @@ void Render::OnReceiveDataBufferCb(const char* data, size_t size,
  }

  std::string remote_id(user_id, user_id_size);
-  if (render->client_properties_.find(remote_id) !=
-      render->client_properties_.end()) {
-    // local
-    auto props = render->client_properties_.find(remote_id)->second;
-    if (remote_action.type == ControlType::host_infomation &&
-        props->remote_host_name_.empty()) {
-      props->remote_host_name_ = std::string(remote_action.i.host_name,
-                                             remote_action.i.host_name_size);
-      LOG_INFO("Remote hostname: [{}]", props->remote_host_name_);
+  // std::shared_lock lock(render->client_properties_mutex_);
+  if (remote_action.type == ControlType::host_infomation) {
+    if (render->client_properties_.find(remote_id) !=
+        render->client_properties_.end()) {
+      // client mode
+      auto props = render->client_properties_.find(remote_id)->second;
+      if (props && props->remote_host_name_.empty()) {
+        props->remote_host_name_ = std::string(remote_action.i.host_name,
+                                               remote_action.i.host_name_size);
+        LOG_INFO("Remote hostname: [{}]", props->remote_host_name_);

-      for (int i = 0; i < remote_action.i.display_num; i++) {
-        props->display_info_list_.push_back(
-            DisplayInfo(remote_action.i.display_list[i],
-                        remote_action.i.left[i], remote_action.i.top[i],
-                        remote_action.i.right[i], remote_action.i.bottom[i]));
+        for (int i = 0; i < remote_action.i.display_num; i++) {
+          props->display_info_list_.push_back(
+              DisplayInfo(remote_action.i.display_list[i],
+                          remote_action.i.left[i], remote_action.i.top[i],
+                          remote_action.i.right[i], remote_action.i.bottom[i]));
+        }
      }
+      FreeRemoteAction(remote_action);
+    } else {
+      // server mode
+      render->connection_host_names_[remote_id] = std::string(
+          remote_action.i.host_name, remote_action.i.host_name_size);
+      LOG_INFO("Remote hostname: [{}]",
+               render->connection_host_names_[remote_id]);
+      FreeRemoteAction(remote_action);
    }
-    FreeRemoteAction(remote_action);
  } else {
    // remote
    if (remote_action.type == ControlType::mouse && render->mouse_controller_) {
@@ -357,6 +673,7 @@ void Render::OnSignalStatusCb(SignalStatus status, const char* user_id,
      render->signal_connected_ = false;
    } else if (SignalStatus::SignalConnected == status) {
      render->signal_connected_ = true;
+      render->need_to_send_recent_connections_ = true;
      LOG_INFO("[{}] connected to signal server", client_id);
    } else if (SignalStatus::SignalFailed == status) {
      render->signal_connected_ = false;
@@ -373,6 +690,7 @@ void Render::OnSignalStatusCb(SignalStatus status, const char* user_id,
    }

    std::string remote_id(client_id.begin() + 2, client_id.end());
+    // std::shared_lock lock(render->client_properties_mutex_);
    if (render->client_properties_.find(remote_id) ==
        render->client_properties_.end()) {
      return;
@@ -402,6 +720,7 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
  if (!render) return;

  std::string remote_id(user_id, user_id_size);
+  // std::shared_lock lock(render->client_properties_mutex_);
  auto it = render->client_properties_.find(remote_id);
  auto props = (it != render->client_properties_.end()) ? it->second : nullptr;

@@ -412,6 +731,49 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,

    switch (status) {
      case ConnectionStatus::Connected: {
+        {
+          RemoteAction remote_action;
+          remote_action.i.display_num = render->display_info_list_.size();
+          remote_action.i.display_list =
+              (char**)malloc(remote_action.i.display_num * sizeof(char*));
+          remote_action.i.left =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          remote_action.i.top =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          remote_action.i.right =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          remote_action.i.bottom =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          for (int i = 0; i < remote_action.i.display_num; i++) {
+            LOG_INFO("Local display [{}:{}]", i + 1,
+                     render->display_info_list_[i].name);
+            remote_action.i.display_list[i] =
+                (char*)malloc(render->display_info_list_[i].name.length() + 1);
+            strncpy(remote_action.i.display_list[i],
+                    render->display_info_list_[i].name.c_str(),
+                    render->display_info_list_[i].name.length());
+            remote_action.i
+                .display_list[i][render->display_info_list_[i].name.length()] =
+                '\0';
+            remote_action.i.left[i] = render->display_info_list_[i].left;
+            remote_action.i.top[i] = render->display_info_list_[i].top;
+            remote_action.i.right[i] = render->display_info_list_[i].right;
+            remote_action.i.bottom[i] = render->display_info_list_[i].bottom;
+          }
+
+          std::string host_name = GetHostName();
+          remote_action.type = ControlType::host_infomation;
+          memcpy(&remote_action.i.host_name, host_name.data(),
+                 host_name.size());
+          remote_action.i.host_name[host_name.size()] = '\0';
+          remote_action.i.host_name_size = host_name.size();
+
+          std::string msg = remote_action.to_json();
+          int ret = SendReliableDataFrame(props->peer_, msg.data(), msg.size(),
+                                          render->control_data_label_.c_str());
+          FreeRemoteAction(remote_action);
+        }
+
        if (!render->need_to_create_stream_window_ &&
            !render->client_properties_.empty()) {
          render->need_to_create_stream_window_ = true;
@@ -421,19 +783,32 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
            0, (int)render->title_bar_height_,
            (int)render->stream_window_width_,
            (int)(render->stream_window_height_ - render->title_bar_height_)};
+        render->start_keyboard_capturer_ = true;
        break;
      }
      case ConnectionStatus::Disconnected:
      case ConnectionStatus::Failed:
      case ConnectionStatus::Closed: {
        props->connection_established_ = false;
-        props->mouse_control_button_pressed_ = false;
-        if (props->dst_buffer_) {
-          memset(props->dst_buffer_, 0, props->dst_buffer_capacity_);
-          SDL_UpdateTexture(props->stream_texture_, NULL, props->dst_buffer_,
-                            props->texture_width_);
+        props->enable_mouse_control_ = false;
+
+        {
+          std::lock_guard<std::mutex> lock(props->video_frame_mutex_);
+          props->front_frame_.reset();
+          props->back_frame_.reset();
+          props->video_width_ = 0;
+          props->video_height_ = 0;
+          props->video_size_ = 0;
+          props->render_rect_dirty_ = true;
+          props->stream_cleanup_pending_ = true;
        }
-        render->CleanSubStreamWindowProperties(props);
+
+        SDL_Event event;
+        event.type = render->STREAM_REFRESH_EVENT;
+        event.user.data1 = props.get();
+        SDL_PushEvent(&event);
+
+        render->focus_on_stream_window_ = false;

        break;
      }
@@ -466,15 +841,55 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,

    switch (status) {
      case ConnectionStatus::Connected: {
-        render->need_to_send_host_info_ = true;
+        {
+          RemoteAction remote_action;
+          remote_action.i.display_num = render->display_info_list_.size();
+          remote_action.i.display_list =
+              (char**)malloc(remote_action.i.display_num * sizeof(char*));
+          remote_action.i.left =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          remote_action.i.top =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          remote_action.i.right =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          remote_action.i.bottom =
+              (int*)malloc(remote_action.i.display_num * sizeof(int));
+          for (int i = 0; i < remote_action.i.display_num; i++) {
+            LOG_INFO("Local display [{}:{}]", i + 1,
+                     render->display_info_list_[i].name);
+            remote_action.i.display_list[i] =
+                (char*)malloc(render->display_info_list_[i].name.length() + 1);
+            strncpy(remote_action.i.display_list[i],
+                    render->display_info_list_[i].name.c_str(),
+                    render->display_info_list_[i].name.length());
+            remote_action.i
+                .display_list[i][render->display_info_list_[i].name.length()] =
+                '\0';
+            remote_action.i.left[i] = render->display_info_list_[i].left;
+            remote_action.i.top[i] = render->display_info_list_[i].top;
+            remote_action.i.right[i] = render->display_info_list_[i].right;
+            remote_action.i.bottom[i] = render->display_info_list_[i].bottom;
+          }
+
+          std::string host_name = GetHostName();
+          remote_action.type = ControlType::host_infomation;
+          memcpy(&remote_action.i.host_name, host_name.data(),
+                 host_name.size());
+          remote_action.i.host_name[host_name.size()] = '\0';
+          remote_action.i.host_name_size = host_name.size();
+
+          std::string msg = remote_action.to_json();
+          int ret = SendReliableDataFrame(render->peer_, msg.data(), msg.size(),
+                                          render->control_data_label_.c_str());
+          FreeRemoteAction(remote_action);
+        }
+
+        render->need_to_create_server_window_ = true;
+        render->is_server_mode_ = true;
        render->start_screen_capturer_ = true;
        render->start_speaker_capturer_ = true;
-#ifdef CROSSDESK_DEBUG
-        render->start_mouse_controller_ = false;
-        render->start_keyboard_capturer_ = false;
-#else
+        render->remote_client_id_ = remote_id;
        render->start_mouse_controller_ = true;
-#endif
        if (std::all_of(render->connection_status_.begin(),
                        render->connection_status_.end(), [](const auto& kv) {
                          return kv.first.find("web") != std::string::npos;
@@ -484,6 +899,8 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,

        break;
      }
+      case ConnectionStatus::Disconnected:
+      case ConnectionStatus::Failed:
      case ConnectionStatus::Closed: {
        if (std::all_of(render->connection_status_.begin(),
                        render->connection_status_.end(), [](const auto& kv) {
@@ -491,11 +908,13 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
                                 kv.second == ConnectionStatus::Failed ||
                                 kv.second == ConnectionStatus::Disconnected;
                        })) {
+          render->need_to_destroy_server_window_ = true;
+          render->is_server_mode_ = false;
          render->start_screen_capturer_ = false;
          render->start_speaker_capturer_ = false;
          render->start_mouse_controller_ = false;
          render->start_keyboard_capturer_ = false;
-          render->need_to_send_host_info_ = false;
+          render->remote_client_id_ = "";
          if (props) props->connection_established_ = false;
          if (render->audio_capture_) {
            render->StopSpeakerCapturer();
@@ -503,6 +922,10 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
          }

          render->connection_status_.erase(remote_id);
+          render->connection_host_names_.erase(remote_id);
+          if (render->screen_capturer_) {
+            render->screen_capturer_->ResetToInitialMonitor();
+          }
        }

        if (std::all_of(render->connection_status_.begin(),
@@ -520,11 +943,11 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, const char* user_id,
  }
 }

-void Render::NetStatusReport(const char* client_id, size_t client_id_size,
-                             TraversalMode mode,
-                             const XNetTrafficStats* net_traffic_stats,
-                             const char* user_id, const size_t user_id_size,
-                             void* user_data) {
+void Render::OnNetStatusReport(const char* client_id, size_t client_id_size,
+                               TraversalMode mode,
+                               const XNetTrafficStats* net_traffic_stats,
+                               const char* user_id, const size_t user_id_size,
+                               void* user_data) {
  Render* render = (Render*)user_data;
  if (!render) {
    return;
@@ -541,27 +964,97 @@ void Render::NetStatusReport(const char* client_id, size_t client_id_size,
      password = at_pos + 1;
    }

-    memset(&render->client_id_, 0, sizeof(render->client_id_));
-    strncpy(render->client_id_, id.c_str(), sizeof(render->client_id_) - 1);
-    render->client_id_[sizeof(render->client_id_) - 1] = '\0';
+    bool is_self_hosted = render->config_center_->IsSelfHosted();

-    memset(&render->password_saved_, 0, sizeof(render->password_saved_));
-    strncpy(render->password_saved_, password.c_str(),
-            sizeof(render->password_saved_) - 1);
-    render->password_saved_[sizeof(render->password_saved_) - 1] = '\0';
+    if (is_self_hosted) {
+      memset(&render->client_id_, 0, sizeof(render->client_id_));
+      strncpy(render->client_id_, id.c_str(), sizeof(render->client_id_) - 1);
+      render->client_id_[sizeof(render->client_id_) - 1] = '\0';

-    memset(&render->client_id_with_password_, 0,
-           sizeof(render->client_id_with_password_));
-    strncpy(render->client_id_with_password_, client_id,
-            sizeof(render->client_id_with_password_) - 1);
-    render->client_id_with_password_[sizeof(render->client_id_with_password_) -
+      memset(&render->password_saved_, 0, sizeof(render->password_saved_));
+      strncpy(render->password_saved_, password.c_str(),
+              sizeof(render->password_saved_) - 1);
+      render->password_saved_[sizeof(render->password_saved_) - 1] = '\0';
+
+      memset(&render->self_hosted_id_, 0, sizeof(render->self_hosted_id_));
+      strncpy(render->self_hosted_id_, client_id,
+              sizeof(render->self_hosted_id_) - 1);
+      render->self_hosted_id_[sizeof(render->self_hosted_id_) - 1] = '\0';
+
+      LOG_INFO("Use self-hosted client id [{}] and save to cache file", id);
+
+      render->cd_cache_mutex_.lock();
+
+      std::ifstream v2_file_read(render->cache_path_ + "/secure_cache_v2.enc",
+                                 std::ios::binary);
+      if (v2_file_read.good()) {
+        v2_file_read.read(reinterpret_cast<char*>(&render->cd_cache_v2_),
+                          sizeof(CDCacheV2));
+        v2_file_read.close();
+      } else {
+        memset(&render->cd_cache_v2_, 0, sizeof(CDCacheV2));
+        memset(&render->cd_cache_v2_.client_id_with_password, 0,
+               sizeof(render->cd_cache_v2_.client_id_with_password));
+        strncpy(render->cd_cache_v2_.client_id_with_password,
+                render->client_id_with_password_,
+                sizeof(render->cd_cache_v2_.client_id_with_password));
+        memcpy(&render->cd_cache_v2_.key, &render->aes128_key_,
+               sizeof(render->cd_cache_v2_.key));
+        memcpy(&render->cd_cache_v2_.iv, &render->aes128_iv_,
+               sizeof(render->cd_cache_v2_.iv));
+      }
+
+      memset(&render->cd_cache_v2_.self_hosted_id, 0,
+             sizeof(render->cd_cache_v2_.self_hosted_id));
+      strncpy(render->cd_cache_v2_.self_hosted_id, client_id,
+              sizeof(render->cd_cache_v2_.self_hosted_id) - 1);
+      render->cd_cache_v2_
+          .self_hosted_id[sizeof(render->cd_cache_v2_.self_hosted_id) - 1] =
+          '\0';
+
+      memset(&render->cd_cache_v2_.client_id_with_password, 0,
+             sizeof(render->cd_cache_v2_.client_id_with_password));
+      strncpy(render->cd_cache_v2_.client_id_with_password,
+              render->client_id_with_password_,
+              sizeof(render->cd_cache_v2_.client_id_with_password));
+      memcpy(&render->cd_cache_v2_.key, &render->aes128_key_,
+             sizeof(render->cd_cache_v2_.key));
+      memcpy(&render->cd_cache_v2_.iv, &render->aes128_iv_,
+             sizeof(render->cd_cache_v2_.iv));
+      std::ofstream cd_cache_v2_file(
+          render->cache_path_ + "/secure_cache_v2.enc", std::ios::binary);
+      if (cd_cache_v2_file) {
+        cd_cache_v2_file.write(reinterpret_cast<char*>(&render->cd_cache_v2_),
+                               sizeof(CDCacheV2));
+        cd_cache_v2_file.close();
+      }
+
+      render->cd_cache_mutex_.unlock();
+    } else {
+      memset(&render->client_id_, 0, sizeof(render->client_id_));
+      strncpy(render->client_id_, id.c_str(), sizeof(render->client_id_) - 1);
+      render->client_id_[sizeof(render->client_id_) - 1] = '\0';
+
+      memset(&render->password_saved_, 0, sizeof(render->password_saved_));
+      strncpy(render->password_saved_, password.c_str(),
+              sizeof(render->password_saved_) - 1);
+      render->password_saved_[sizeof(render->password_saved_) - 1] = '\0';
+
+      memset(&render->client_id_with_password_, 0,
+             sizeof(render->client_id_with_password_));
+      strncpy(render->client_id_with_password_, client_id,
+              sizeof(render->client_id_with_password_) - 1);
+      render
+          ->client_id_with_password_[sizeof(render->client_id_with_password_) -
                                     1] = '\0';

-    LOG_INFO("Use client id [{}] and save id into cache file", id);
-    render->SaveSettingsIntoCacheFile();
+      LOG_INFO("Use client id [{}] and save id into cache file", id);
+      render->SaveSettingsIntoCacheFile();
+    }
  }

  std::string remote_id(user_id, user_id_size);
+  // std::shared_lock lock(render->client_properties_mutex_);
  if (render->client_properties_.find(remote_id) ==
      render->client_properties_.end()) {
    return;
--- a/src/gui/toolbars/control_bar.cpp
+++ b/src/gui/toolbars/control_bar.cpp
@@ -1,7 +1,17 @@
+#include <algorithm>
+#include <atomic>
+#include <chrono>
+#include <filesystem>
+#include <fstream>
+#include <thread>
+#include <vector>
+
+#include "file_transfer.h"
 #include "layout.h"
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
+#include "tinyfiledialogs.h"

 namespace crossdesk {

@@ -31,27 +41,122 @@ int LossRateDisplay(float loss_rate) {
  return 0;
 }

-int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
-  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+std::string Render::OpenFileDialog(std::string title) {
+  const char* path = tinyfd_openFileDialog(title.c_str(),
+                                           "",       // default path
+                                           0,        // number of filters
+                                           nullptr,  // filters
+                                           nullptr,  // filter description
+                                           0         // no multiple selection
+  );

+  return path ? path : "";
+}
+
+void Render::ProcessSelectedFile(
+    const std::string& path,
+    const std::shared_ptr<SubStreamWindowProperties>& props,
+    const std::string& file_label, const std::string& remote_id) {
+  if (path.empty()) {
+    return;
+  }
+
+  FileTransferState* file_transfer_state =
+      props ? &props->file_transfer_ : &file_transfer_;
+
+  LOG_INFO("Selected file: {}", path.c_str());
+
+  std::filesystem::path file_path = std::filesystem::u8path(path);
+
+  // Get file size
+  std::error_code ec;
+  uint64_t file_size = std::filesystem::file_size(file_path, ec);
+  if (ec) {
+    LOG_ERROR("Failed to get file size: {}", ec.message().c_str());
+    file_size = 0;
+  }
+
+  // Add file to transfer list
+  {
+    std::lock_guard<std::mutex> lock(
+        file_transfer_state->file_transfer_list_mutex_);
+    FileTransferState::FileTransferInfo info;
+    info.file_name = file_path.filename().u8string();
+    info.file_path = file_path;  // Store full path for precise matching
+    info.file_size = file_size;
+    info.status = FileTransferState::FileTransferStatus::Queued;
+    info.sent_bytes = 0;
+    info.file_id = 0;
+    info.rate_bps = 0;
+    file_transfer_state->file_transfer_list_.push_back(info);
+  }
+  file_transfer_state->file_transfer_window_visible_ = true;
+
+  if (file_transfer_state->file_sending_.load()) {
+    // Add to queue
+    size_t queue_size = 0;
+    {
+      std::lock_guard<std::mutex> lock(file_transfer_state->file_queue_mutex_);
+      FileTransferState::QueuedFile queued_file;
+      queued_file.file_path = file_path;
+      queued_file.file_label = file_label;
+      queued_file.remote_id = remote_id;
+      file_transfer_state->file_send_queue_.push(queued_file);
+      queue_size = file_transfer_state->file_send_queue_.size();
+    }
+    LOG_INFO("File added to queue: {} ({} files in queue)",
+             file_path.filename().string().c_str(), queue_size);
+  } else {
+    StartFileTransfer(props, file_path, file_label, remote_id);
+
+    if (file_transfer_state->file_sending_.load()) {
+    } else {
+      // Failed to start (race condition: another file started between
+      // check and call) Add to queue
+      size_t queue_size = 0;
+      {
+        std::lock_guard<std::mutex> lock(
+            file_transfer_state->file_queue_mutex_);
+        FileTransferState::QueuedFile queued_file;
+        queued_file.file_path = file_path;
+        queued_file.file_label = file_label;
+        queued_file.remote_id = remote_id;
+        file_transfer_state->file_send_queue_.push(queued_file);
+        queue_size = file_transfer_state->file_send_queue_.size();
+      }
+      LOG_INFO(
+          "File added to queue after race condition: {} ({} files in "
+          "queue)",
+          file_path.filename().string().c_str(), queue_size);
+    }
+  }
+}
+
+int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
+  float button_width = title_bar_height_ * 0.8f;
+  float button_height = title_bar_height_ * 0.8f;
+  float line_padding = title_bar_height_ * 0.12f;
+  float line_thickness = title_bar_height_ * 0.07f;
+
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
  if (props->control_bar_expand_) {
    ImGui::SetCursorPosX(props->is_control_bar_in_left_
-                             ? (props->control_window_width_ + 5.0f)
-                             : 38.0f);
-    // mouse control button
-    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+                             ? props->control_window_width_ * 0.03f
+                             : props->control_window_width_ * 0.17f);

-    if (props->is_control_bar_in_left_) {
-      draw_list->AddLine(ImVec2(ImGui::GetCursorScreenPos().x - 5.0f,
-                                ImGui::GetCursorScreenPos().y - 7.0f),
-                         ImVec2(ImGui::GetCursorScreenPos().x - 5.0f,
-                                ImGui::GetCursorScreenPos().y - 7.0f +
-                                    props->control_window_height_),
-                         IM_COL32(178, 178, 178, 255), 1.0f);
+    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+    if (!props->is_control_bar_in_left_) {
+      draw_list->AddLine(
+          ImVec2(ImGui::GetCursorScreenPos().x - button_height * 0.5f,
+                 ImGui::GetCursorScreenPos().y + button_height * 0.2f),
+          ImVec2(ImGui::GetCursorScreenPos().x - button_height * 0.5f,
+                 ImGui::GetCursorScreenPos().y + button_height * 0.8f),
+          IM_COL32(178, 178, 178, 255), 2.0f);
    }

    std::string display = ICON_FA_DISPLAY;
-    if (ImGui::Button(display.c_str(), ImVec2(25, 25))) {
+    ImGui::SetWindowFontScale(0.5f);
+    if (ImGui::Button(display.c_str(), ImVec2(button_width, button_height))) {
      ImGui::OpenPopup("display");
    }

@@ -69,69 +174,72 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
          remote_action.d = i;
          if (props->connection_status_ == ConnectionStatus::Connected) {
            std::string msg = remote_action.to_json();
-            SendDataFrame(props->peer_, msg.c_str(), msg.size(),
-                          props->data_label_.c_str());
+            SendReliableDataFrame(props->peer_, msg.c_str(), msg.size(),
+                                  props->control_data_label_.c_str());
          }
        }
        props->display_selectable_hovered_ = ImGui::IsWindowHovered();
      }
-      ImGui::SetWindowFontScale(1.0f);
      ImGui::EndPopup();
    }

-    ImGui::SetWindowFontScale(0.6f);
+    ImGui::SetWindowFontScale(0.5f);
    ImVec2 text_size = ImGui::CalcTextSize(
        std::to_string(props->selected_display_ + 1).c_str());
    ImVec2 text_pos =
        ImVec2(btn_min.x + (btn_size_actual.x - text_size.x) * 0.5f,
-               btn_min.y + (btn_size_actual.y - text_size.y) * 0.5f - 2.0f);
+               btn_min.y + (btn_size_actual.y - text_size.y) * 0.35f);
    ImGui::GetWindowDrawList()->AddText(
        text_pos, IM_COL32(0, 0, 0, 255),
        std::to_string(props->selected_display_ + 1).c_str());
-    ImGui::SetWindowFontScale(1.0f);

    ImGui::SameLine();
-    float disable_mouse_x = ImGui::GetCursorScreenPos().x + 4.0f;
-    float disable_mouse_y = ImGui::GetCursorScreenPos().y + 4.0f;
-    std::string mouse = props->mouse_control_button_pressed_
-                            ? ICON_FA_COMPUTER_MOUSE
-                            : ICON_FA_COMPUTER_MOUSE;
-    if (ImGui::Button(mouse.c_str(), ImVec2(25, 25))) {
+    float mouse_x = ImGui::GetCursorScreenPos().x;
+    float mouse_y = ImGui::GetCursorScreenPos().y;
+    float disable_mouse_x = mouse_x + line_padding;
+    float disable_mouse_y = mouse_y + line_padding;
+    std::string mouse = ICON_FA_COMPUTER_MOUSE;
+    ImGui::SetWindowFontScale(0.5f);
+    if (ImGui::Button(mouse.c_str(), ImVec2(button_width, button_height))) {
      if (props->connection_established_) {
        start_keyboard_capturer_ = !start_keyboard_capturer_;
        props->control_mouse_ = !props->control_mouse_;
-        props->mouse_control_button_pressed_ =
-            !props->mouse_control_button_pressed_;
+        props->enable_mouse_control_ = !props->enable_mouse_control_;
        props->mouse_control_button_label_ =
-            props->mouse_control_button_pressed_
+            props->enable_mouse_control_
                ? localization::release_mouse[localization_language_index_]
                : localization::control_mouse[localization_language_index_];
      }
    }
-    if (!props->mouse_control_button_pressed_) {
+
+    if (!props->enable_mouse_control_) {
+      draw_list->AddLine(ImVec2(disable_mouse_x, disable_mouse_y),
+                         ImVec2(mouse_x + button_width - line_padding,
+                                mouse_y + button_height - line_padding),
+                         IM_COL32(0, 0, 0, 255), line_thickness);
      draw_list->AddLine(
-          ImVec2(disable_mouse_x, disable_mouse_y),
-          ImVec2(disable_mouse_x + 16.0f, disable_mouse_y + 14.2f),
-          IM_COL32(0, 0, 0, 255), 2.0f);
-      draw_list->AddLine(
-          ImVec2(disable_mouse_x - 1.2f, disable_mouse_y + 1.2f),
-          ImVec2(disable_mouse_x + 15.3f, disable_mouse_y + 15.4f),
+          ImVec2(disable_mouse_x - line_thickness * 0.7f,
+                 disable_mouse_y + line_thickness * 0.7f),
+          ImVec2(
+              mouse_x + button_width - line_padding - line_thickness * 0.7f,
+              mouse_y + button_height - line_padding + line_thickness * 0.7f),
          ImGui::IsItemHovered() ? IM_COL32(66, 150, 250, 255)
                                 : IM_COL32(179, 213, 253, 255),
-          2.0f);
+          line_thickness);
    }

    ImGui::SameLine();
    // audio capture button
-    float disable_audio_x = ImGui::GetCursorScreenPos().x + 4;
-    float disable_audio_y = ImGui::GetCursorScreenPos().y + 4.0f;
-    // std::string audio = audio_capture_button_pressed_ ? ICON_FA_VOLUME_HIGH
-    //                                                   :
-    //                                                   ICON_FA_VOLUME_XMARK;
+    float audio_x = ImGui::GetCursorScreenPos().x;
+    float audio_y = ImGui::GetCursorScreenPos().y;
+    float disable_audio_x = audio_x + line_padding;
+    float disable_audio_y = audio_y + line_padding;
+
    std::string audio = props->audio_capture_button_pressed_
                            ? ICON_FA_VOLUME_HIGH
                            : ICON_FA_VOLUME_HIGH;
-    if (ImGui::Button(audio.c_str(), ImVec2(25, 25))) {
+    ImGui::SetWindowFontScale(0.5f);
+    if (ImGui::Button(audio.c_str(), ImVec2(button_width, button_height))) {
      if (props->connection_established_) {
        props->audio_capture_button_pressed_ =
            !props->audio_capture_button_pressed_;
@@ -144,21 +252,35 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
        remote_action.type = ControlType::audio_capture;
        remote_action.a = props->audio_capture_button_pressed_;
        std::string msg = remote_action.to_json();
-        SendDataFrame(props->peer_, msg.c_str(), msg.size(),
-                      props->data_label_.c_str());
+        SendReliableDataFrame(props->peer_, msg.c_str(), msg.size(),
+                              props->control_data_label_.c_str());
      }
    }
+
    if (!props->audio_capture_button_pressed_) {
+      draw_list->AddLine(ImVec2(disable_audio_x, disable_audio_y),
+                         ImVec2(audio_x + button_width - line_padding,
+                                audio_y + button_height - line_padding),
+                         IM_COL32(0, 0, 0, 255), line_thickness);
      draw_list->AddLine(
-          ImVec2(disable_audio_x, disable_audio_y),
-          ImVec2(disable_audio_x + 16.0f, disable_audio_y + 14.2f),
-          IM_COL32(0, 0, 0, 255), 2.0f);
-      draw_list->AddLine(
-          ImVec2(disable_audio_x - 1.2f, disable_audio_y + 1.2f),
-          ImVec2(disable_audio_x + 15.3f, disable_audio_y + 15.4f),
+          ImVec2(disable_audio_x - line_thickness * 0.7f,
+                 disable_audio_y + line_thickness * 0.7f),
+          ImVec2(
+              audio_x + button_width - line_padding - line_thickness * 0.7f,
+              audio_y + button_height - line_padding + line_thickness * 0.7f),
          ImGui::IsItemHovered() ? IM_COL32(66, 150, 250, 255)
                                 : IM_COL32(179, 213, 253, 255),
-          2.0f);
+          line_thickness);
+    }
+
+    ImGui::SameLine();
+    std::string open_folder = ICON_FA_FOLDER_OPEN;
+    if (ImGui::Button(open_folder.c_str(),
+                      ImVec2(button_width, button_height))) {
+      std::string title =
+          localization::select_file[localization_language_index_];
+      std::string path = OpenFileDialog(title);
+      ProcessSelectedFile(path, props, file_label_);
    }

    ImGui::SameLine();
@@ -170,7 +292,9 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
      button_color_style_pushed = true;
    }
    std::string net_traffic_stats = ICON_FA_SIGNAL;
-    if (ImGui::Button(net_traffic_stats.c_str(), ImVec2(25, 25))) {
+    ImGui::SetWindowFontScale(0.5f);
+    if (ImGui::Button(net_traffic_stats.c_str(),
+                      ImVec2(button_width, button_height))) {
      props->net_traffic_stats_button_pressed_ =
          !props->net_traffic_stats_button_pressed_;
      props->control_window_height_is_changing_ = true;
@@ -182,6 +306,7 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
              : localization::show_net_traffic_stats
                    [localization_language_index_];
    }
+
    if (button_color_style_pushed) {
      ImGui::PopStyleColor();
      button_color_style_pushed = false;
@@ -191,7 +316,9 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
    // fullscreen button
    std::string fullscreen =
        fullscreen_button_pressed_ ? ICON_FA_COMPRESS : ICON_FA_EXPAND;
-    if (ImGui::Button(fullscreen.c_str(), ImVec2(25, 25))) {
+    ImGui::SetWindowFontScale(0.5f);
+    if (ImGui::Button(fullscreen.c_str(),
+                      ImVec2(button_width, button_height))) {
      fullscreen_button_pressed_ = !fullscreen_button_pressed_;
      props->fullscreen_button_label_ =
          fullscreen_button_pressed_
@@ -209,25 +336,33 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
    ImGui::SameLine();
    // close button
    std::string close_button = ICON_FA_XMARK;
-    if (ImGui::Button(close_button.c_str(), ImVec2(25, 25))) {
+    ImGui::SetWindowFontScale(0.5f);
+    if (ImGui::Button(close_button.c_str(),
+                      ImVec2(button_width, button_height))) {
      CleanupPeer(props);
    }

    ImGui::SameLine();

-    if (!props->is_control_bar_in_left_) {
-      draw_list->AddLine(ImVec2(ImGui::GetCursorScreenPos().x - 3.0f,
-                                ImGui::GetCursorScreenPos().y - 7.0f),
-                         ImVec2(ImGui::GetCursorScreenPos().x - 3.0f,
-                                ImGui::GetCursorScreenPos().y - 7.0f +
-                                    props->control_window_height_),
-                         IM_COL32(178, 178, 178, 255), 1.0f);
+    if (props->is_control_bar_in_left_) {
+      draw_list->AddLine(
+          ImVec2(ImGui::GetCursorScreenPos().x + button_height * 0.13f,
+                 ImGui::GetCursorScreenPos().y + button_height * 0.2f),
+          ImVec2(ImGui::GetCursorScreenPos().x + button_height * 0.13f,
+                 ImGui::GetCursorScreenPos().y + button_height * 0.8f),
+          IM_COL32(178, 178, 178, 255), 2.0f);
    }
+
+    ImGui::SameLine();
  }

-  ImGui::SetCursorPosX(props->is_control_bar_in_left_
-                           ? (props->control_window_width_ * 2 - 20.0f)
-                           : 5.0f);
+  float expand_button_pos_x = props->control_bar_expand_
+                                  ? (props->is_control_bar_in_left_
+                                         ? props->control_window_width_ * 0.917f
+                                         : props->control_window_width_ * 0.03f)
+                                  : props->control_window_width_ * 0.11f;
+
+  ImGui::SetCursorPosX(expand_button_pos_x);

  std::string control_bar =
      props->control_bar_expand_
@@ -235,13 +370,14 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
                                            : ICON_FA_ANGLE_RIGHT)
          : (props->is_control_bar_in_left_ ? ICON_FA_ANGLE_RIGHT
                                            : ICON_FA_ANGLE_LEFT);
-  if (ImGui::Button(control_bar.c_str(), ImVec2(15, 25))) {
+  if (ImGui::Button(control_bar.c_str(),
+                    ImVec2(button_height * 0.6f, button_height))) {
    props->control_bar_expand_ = !props->control_bar_expand_;
    props->control_bar_button_pressed_time_ = ImGui::GetTime();
    props->control_window_width_is_changing_ = true;

    if (!props->control_bar_expand_) {
-      props->control_window_height_ = 40;
+      props->control_window_height_ = props->control_window_min_height_;
      props->net_traffic_stats_button_pressed_ = false;
    }
  }
@@ -256,14 +392,12 @@ int Render::ControlBar(std::shared_ptr<SubStreamWindowProperties>& props) {
 }

 int Render::NetTrafficStats(std::shared_ptr<SubStreamWindowProperties>& props) {
-  ImGui::SetCursorPos(ImVec2(props->is_control_bar_in_left_
-                                 ? (props->control_window_width_ + 5.0f)
-                                 : 5.0f,
-                             40.0f));
-
+  ImGui::SetCursorPos(ImVec2(props->control_window_width_ * 0.048f,
+                             props->control_window_min_height_));
+  ImGui::SetWindowFontScale(0.5f);
  if (ImGui::BeginTable("NetTrafficStats", 4, ImGuiTableFlags_BordersH,
-                        ImVec2(props->control_window_max_width_ - 10.0f,
-                               props->control_window_max_height_ - 60.0f))) {
+                        ImVec2(props->control_window_max_width_ * 0.9f,
+                               props->control_window_max_height_ - 0.9f))) {
    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed);
    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthStretch);
    ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthStretch);
@@ -319,12 +453,36 @@ int Render::NetTrafficStats(std::shared_ptr<SubStreamWindowProperties>& props) {
    LossRateDisplay(props->net_traffic_stats_.total_inbound_stats.loss_rate);

    ImGui::TableNextColumn();
-    ImGui::Text("FPS");
+    ImGui::Text("FPS:");
    ImGui::TableNextColumn();
    ImGui::Text("%d", props->fps_);
+    ImGui::TableNextColumn();
+    ImGui::TableNextColumn();
+
+    ImGui::TableNextColumn();
+    ImGui::Text("%s:",
+                localization::resolution[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    ImGui::Text("%dx%d", props->video_width_, props->video_height_);
+    ImGui::TableNextColumn();
+    ImGui::TableNextColumn();
+
+    ImGui::TableNextColumn();
+    ImGui::Text(
+        "%s:",
+        localization::connection_mode[localization_language_index_].c_str());
+    ImGui::TableNextColumn();
+    ImGui::Text(
+        "%s",
+        props->traversal_mode_ == 0
+            ? localization::connection_mode_direct[localization_language_index_]
+                  .c_str()
+            : localization::connection_mode_relay[localization_language_index_]
+                  .c_str());

    ImGui::EndTable();
  }
+  ImGui::SetWindowFontScale(1.0f);

  return 0;
 }
--- a/src/gui/toolbars/status_bar.cpp
+++ b/src/gui/toolbars/status_bar.cpp
@@ -1,32 +1,40 @@
+#include "layout_relative.h"
 #include "localization.h"
 #include "render.h"

 namespace crossdesk {

 int Render::StatusBar() {
-  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGuiIO& io = ImGui::GetIO();
+  float status_bar_width = io.DisplaySize.x;
+  float status_bar_height = io.DisplaySize.y * STATUS_BAR_HEIGHT;
+
  static bool a, b, c, d, e;
-  ImGui::SetNextWindowPos(
-      ImVec2(0, main_window_height_default_ - status_bar_height_ - 1),
-      ImGuiCond_Always);
+  ImGui::SetNextWindowPos(ImVec2(0, io.DisplaySize.y * (1 - STATUS_BAR_HEIGHT)),
+                          ImGuiCond_Always);

-  ImGui::BeginChild(
-      "StatusBar", ImVec2(main_window_width_, status_bar_height_ + 1),
-      ImGuiChildFlags_Border,
-      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_Border, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::BeginChild("StatusBar", ImVec2(status_bar_width, status_bar_height),
+                    ImGuiChildFlags_Borders,
+                    ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+                        ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleColor(2);

-  ImVec2 dot_pos =
-      ImVec2(13, main_window_height_default_ - status_bar_height_ + 11.0f);
+  ImVec2 dot_pos = ImVec2(status_bar_width * 0.025f,
+                          io.DisplaySize.y * (1 - STATUS_BAR_HEIGHT * 0.5f));
  ImDrawList* draw_list = ImGui::GetWindowDrawList();
-  draw_list->AddCircleFilled(dot_pos, 5.0f,
+  draw_list->AddCircleFilled(dot_pos, status_bar_height * 0.25f,
+                             ImColor(1.0f, 1.0f, 1.0f), 100);
+  draw_list->AddCircleFilled(dot_pos, status_bar_height * 0.2f,
                             ImColor(signal_connected_ ? 0.0f : 1.0f,
                                     signal_connected_ ? 1.0f : 0.0f, 0.0f),
                             100);
-  draw_list->AddCircle(dot_pos, 6.0f, ImColor(1.0f, 1.0f, 1.0f), 100);

  ImGui::SetWindowFontScale(0.6f);
  draw_list->AddText(
-      ImVec2(25, main_window_height_default_ - status_bar_height_ + 3.0f),
+      ImVec2(status_bar_width * 0.045f,
+             io.DisplaySize.y * (1 - STATUS_BAR_HEIGHT * 0.9f)),
      ImColor(0.0f, 0.0f, 0.0f),
      signal_connected_
          ? localization::signal_connected[localization_language_index_].c_str()
@@ -34,8 +42,7 @@ int Render::StatusBar() {
                .c_str());
  ImGui::SetWindowFontScale(1.0f);

-  ImGui::PopStyleColor();
  ImGui::EndChild();
  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/toolbars/title_bar.cpp
+++ b/src/gui/toolbars/title_bar.cpp
@@ -1,117 +1,118 @@
+#include "layout_relative.h"
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
+#include "rounded_corner_button.h"

-#define BUTTON_PADDING 36.0f
-#define NEW_VERSION_ICON_RENDER_TIME_INTERVAL 2000
+constexpr double kNewVersionIconBlinkIntervalSec = 2.0;
+constexpr double kNewVersionIconBlinkOnTimeSec = 1.0;

 namespace crossdesk {

 int Render::TitleBar(bool main_window) {
-  ImGui::PushStyleColor(ImGuiCol_MenuBarBg, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
-  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGuiIO& io = ImGui::GetIO();
+  float title_bar_width = title_bar_width_;
+  float title_bar_height = title_bar_height_;
+  float title_bar_height_padding = title_bar_height_;
+  float title_bar_button_width = title_bar_button_width_;
+  float title_bar_button_height = title_bar_button_height_;
+  if (main_window) {
+    // When the main window is minimized, Dear ImGui may report DisplaySize as
+    // (0, 0). Do not overwrite shared title-bar metrics with zeros, otherwise
+    // stream/server windows (which reuse these metrics) will lose their title
+    // bars and appear collapsed.
+    if (io.DisplaySize.x > 0.0f && io.DisplaySize.y > 0.0f) {
+      title_bar_width = io.DisplaySize.x;
+      title_bar_height = io.DisplaySize.y * TITLE_BAR_HEIGHT;
+      title_bar_height_padding = io.DisplaySize.y * TITLE_BAR_HEIGHT;
+      title_bar_button_width = io.DisplaySize.x * TITLE_BAR_BUTTON_WIDTH;
+      title_bar_button_height = io.DisplaySize.y * TITLE_BAR_BUTTON_HEIGHT;
+
+      title_bar_height_ = title_bar_height;
+      title_bar_button_width_ = title_bar_button_width;
+      title_bar_button_height_ = title_bar_button_height;
+    } else {
+      // Keep using last known good values.
+      title_bar_width = title_bar_width_;
+      title_bar_height = title_bar_height_;
+      title_bar_height_padding = title_bar_height_;
+      title_bar_button_width = title_bar_button_width_;
+      title_bar_button_height = title_bar_button_height_;
+    }
+  } else {
+    title_bar_width = io.DisplaySize.x;
+    title_bar_height = title_bar_button_height_;
+    title_bar_button_width = title_bar_button_width_;
+    title_bar_button_height = title_bar_button_height_;
+  }
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
  ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
-  ImGui::SetWindowFontScale(0.8f);
-  ImGui::BeginChild(
-      main_window ? "MainTitleBar" : "StreamTitleBar",
-      ImVec2(main_window ? main_window_width_ : stream_window_width_,
-             title_bar_height_),
-      ImGuiChildFlags_Border,
-      ImGuiWindowFlags_MenuBar | ImGuiWindowFlags_NoDecoration |
-          ImGuiWindowFlags_NoBringToFrontOnFocus);
-  ImGui::SetWindowFontScale(1.0f);
+  ImGui::BeginChild(main_window ? "MainTitleBar" : "StreamTitleBar",
+                    ImVec2(title_bar_width, title_bar_height_padding),
+                    ImGuiChildFlags_Borders,
+                    ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+                        ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleVar();
  ImGui::PopStyleColor();

+  // get draw list
  ImDrawList* draw_list = ImGui::GetWindowDrawList();
-  if (ImGui::BeginMenuBar()) {
-    ImGui::SetCursorPosX(
-        (main_window ? main_window_width_ : stream_window_width_) -
-        (BUTTON_PADDING * 3 - 3));
-    ImGui::PushStyleColor(ImGuiCol_HeaderHovered, ImVec4(0, 0, 0, 0.1f));
-    ImGui::PushStyleColor(ImGuiCol_HeaderActive,
+
+  ImGui::SetCursorPos(
+      ImVec2(title_bar_width - title_bar_button_width * 3, 0.0f));
+  if (main_window) {
+    float bar_pos_x = title_bar_width - title_bar_button_width * 3 +
+                      title_bar_button_width * 0.33f;
+    float bar_pos_y = title_bar_button_height * 0.5f;
+
+    // draw menu icon
+    float menu_bar_line_size = title_bar_button_width * 0.33f;
+    draw_list->AddLine(
+        ImVec2(bar_pos_x, bar_pos_y - title_bar_button_height * 0.15f),
+        ImVec2(bar_pos_x + menu_bar_line_size,
+               bar_pos_y - title_bar_button_height * 0.15f),
+        IM_COL32(0, 0, 0, 255));
+    draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y),
+                       ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y),
+                       IM_COL32(0, 0, 0, 255));
+    draw_list->AddLine(
+        ImVec2(bar_pos_x, bar_pos_y + title_bar_button_height * 0.15f),
+        ImVec2(bar_pos_x + menu_bar_line_size,
+               bar_pos_y + title_bar_button_height * 0.15f),
+        IM_COL32(0, 0, 0, 255));
+
+    std::string title_bar_menu_button = "##title_bar_menu";  // ICON_FA_BARS;
+    std::string title_bar_menu = "##title_bar_menu";
+
+    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+    ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
+    ImGui::PushStyleColor(ImGuiCol_ButtonActive,
                          ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
-    if (main_window) {
-      float bar_pos_x = ImGui::GetCursorPosX() + 6;
-      float bar_pos_y = ImGui::GetCursorPosY() + 15;
-      std::string menu_button = "    ";  // ICON_FA_BARS;
-      if (ImGui::BeginMenu(menu_button.c_str())) {
-        ImGui::SetWindowFontScale(0.5f);
-        if (ImGui::MenuItem(
-                localization::settings[localization_language_index_].c_str())) {
-          show_settings_window_ = true;
-        }
+    if (ImGui::Button(
+            title_bar_menu_button.c_str(),
+            ImVec2(title_bar_button_width, title_bar_button_height))) {
+      ImGui::OpenPopup(title_bar_menu.c_str());
+    }
+    ImGui::PopStyleColor(3);

-        show_new_version_icon_in_menu_ = false;
-
-        std::string about_str =
-            localization::about[localization_language_index_];
-        if (update_available_) {
-          auto now_time =
-              std::chrono::duration_cast<std::chrono::milliseconds>(
-                  std::chrono::steady_clock::now().time_since_epoch())
-                  .count();
-
-          // every 2 seconds
-          if (now_time - new_version_icon_last_trigger_time_ >=
-              NEW_VERSION_ICON_RENDER_TIME_INTERVAL) {
-            show_new_version_icon_ = true;
-            new_version_icon_render_start_time_ = now_time;
-            new_version_icon_last_trigger_time_ = now_time;
-          }
-
-          // render for 1 second
-          if (show_new_version_icon_) {
-            about_str = about_str + " " + ICON_FA_TRIANGLE_EXCLAMATION;
-            if (now_time - new_version_icon_render_start_time_ >=
-                NEW_VERSION_ICON_RENDER_TIME_INTERVAL / 2) {
-              show_new_version_icon_ = false;
-            }
-          } else {
-            about_str = about_str + "      ";
-          }
-        }
-
-        if (ImGui::MenuItem(about_str.c_str())) {
-          show_about_window_ = true;
-        }
-
-        if (update_available_ && ImGui::IsItemHovered()) {
-          ImGui::BeginTooltip();
-          ImGui::SetWindowFontScale(0.5f);
-          std::string new_version_available_str =
-              localization::new_version_available
-                  [localization_language_index_] +
-              ": " + latest_version_;
-          ImGui::Text("%s", new_version_available_str.c_str());
-          ImGui::SetWindowFontScale(1.0f);
-          ImGui::EndTooltip();
-        }
-
-        ImGui::SetWindowFontScale(1.0f);
-        ImGui::EndMenu();
-      } else {
-        show_new_version_icon_in_menu_ = true;
+    if (ImGui::BeginPopup(title_bar_menu.c_str())) {
+      ImGui::SetWindowFontScale(0.6f);
+      if (ImGui::MenuItem(
+              localization::settings[localization_language_index_].c_str())) {
+        show_settings_window_ = true;
      }

-      float menu_bar_line_size = 15.0f;
-      draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y - 6),
-                         ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y - 6),
-                         IM_COL32(0, 0, 0, 255));
-      draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y),
-                         ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y),
-                         IM_COL32(0, 0, 0, 255));
-      draw_list->AddLine(ImVec2(bar_pos_x, bar_pos_y + 6),
-                         ImVec2(bar_pos_x + menu_bar_line_size, bar_pos_y + 6),
-                         IM_COL32(0, 0, 0, 255));
+      show_new_version_icon_in_menu_ = false;

-      if (update_available_ && show_new_version_icon_in_menu_) {
-        auto now_time = std::chrono::duration_cast<std::chrono::milliseconds>(
-                            std::chrono::steady_clock::now().time_since_epoch())
-                            .count();
+      std::string about_str = localization::about[localization_language_index_];
+      if (update_available_) {
+        const double now_time = ImGui::GetTime();

        // every 2 seconds
        if (now_time - new_version_icon_last_trigger_time_ >=
-            NEW_VERSION_ICON_RENDER_TIME_INTERVAL) {
+            kNewVersionIconBlinkIntervalSec) {
          show_new_version_icon_ = true;
          new_version_icon_render_start_time_ = now_time;
          new_version_icon_last_trigger_time_ = now_time;
@@ -119,133 +120,213 @@ int Render::TitleBar(bool main_window) {

        // render for 1 second
        if (show_new_version_icon_) {
-          ImGui::SetWindowFontScale(0.6f);
-          ImGui::SetCursorPos(ImVec2(bar_pos_x + 10, bar_pos_y - 17));
-          ImGui::Text(ICON_FA_TRIANGLE_EXCLAMATION);
-          ImGui::SetWindowFontScale(1.0f);
-
+          about_str = about_str + " " + ICON_FA_CIRCLE_ARROW_UP;
          if (now_time - new_version_icon_render_start_time_ >=
-              NEW_VERSION_ICON_RENDER_TIME_INTERVAL / 2) {
+              kNewVersionIconBlinkOnTimeSec) {
            show_new_version_icon_ = false;
          }
+        } else {
+          about_str = about_str + "      ";
        }
      }

-      {
-        SettingWindow();
-        SelfHostedServerWindow();
-        AboutWindow();
+      if (ImGui::MenuItem(about_str.c_str())) {
+        show_about_window_ = true;
+      }
+
+      if (update_available_ && ImGui::IsItemHovered()) {
+        ImGui::BeginTooltip();
+        ImGui::SetWindowFontScale(0.5f);
+        std::string new_version_available_str =
+            localization::new_version_available[localization_language_index_] +
+            ": " + latest_version_;
+        ImGui::Text("%s", new_version_available_str.c_str());
+        ImGui::SetWindowFontScale(1.0f);
+        ImGui::EndTooltip();
+      }
+
+      ImGui::EndPopup();
+    } else {
+      show_new_version_icon_in_menu_ = true;
+    }
+
+    if (update_available_ && show_new_version_icon_in_menu_) {
+      const double now_time = ImGui::GetTime();
+
+      // every 2 seconds
+      if (now_time - new_version_icon_last_trigger_time_ >=
+          kNewVersionIconBlinkIntervalSec) {
+        show_new_version_icon_ = true;
+        new_version_icon_render_start_time_ = now_time;
+        new_version_icon_last_trigger_time_ = now_time;
+      }
+
+      // render for 1 second
+      if (show_new_version_icon_) {
+        ImGui::SetWindowFontScale(0.6f);
+        ImGui::SetCursorPos(ImVec2(bar_pos_x + title_bar_button_width * 0.21f,
+                                   bar_pos_y - title_bar_button_width * 0.24f));
+        ImGui::Text(ICON_FA_CIRCLE_ARROW_UP);
+        ImGui::SetWindowFontScale(1.0f);
+
+        if (now_time - new_version_icon_render_start_time_ >=
+            kNewVersionIconBlinkOnTimeSec) {
+          show_new_version_icon_ = false;
+        }
      }
    }

-    ImGui::PopStyleColor(2);
+    {
+      SettingWindow();
+      SelfHostedServerWindow();
+      AboutWindow();
+    }
+  } else {
+    ImGui::SetWindowFontScale(1.2f);
+  }

+  ImGui::SetCursorPos(ImVec2(
+      title_bar_width - title_bar_button_width * (main_window ? 2 : 3), 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+  ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
+  ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+
+  float minimize_pos_x = title_bar_width -
+                         title_bar_button_width * (main_window ? 2 : 3) +
+                         title_bar_button_width * 0.33f;
+  float minimize_pos_y = title_bar_button_height * 0.5f;
+  std::string window_minimize_button = "##minimize";  // ICON_FA_MINUS;
+  if (ImGui::Button(window_minimize_button.c_str(),
+                    ImVec2(title_bar_button_width, title_bar_button_height))) {
+    if (main_window) {
+      last_main_minimize_request_tick_ = SDL_GetTicks();
+    } else {
+      last_stream_minimize_request_tick_ = SDL_GetTicks();
+    }
+    SDL_MinimizeWindow(main_window ? main_window_ : stream_window_);
+  }
+  draw_list->AddLine(
+      ImVec2(minimize_pos_x, minimize_pos_y),
+      ImVec2(minimize_pos_x + title_bar_button_width * 0.33f, minimize_pos_y),
+      IM_COL32(0, 0, 0, 255));
+  ImGui::PopStyleColor(3);
+
+  if (!main_window) {
+    ImGui::SetCursorPos(
+        ImVec2(title_bar_width - title_bar_button_width * 2, 0.0f));
    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
-    ImGui::SetCursorPosX(main_window
-                             ? (main_window_width_ - BUTTON_PADDING * 2)
-                             : (stream_window_width_ - BUTTON_PADDING * 3));
    ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
    ImGui::PushStyleColor(ImGuiCol_ButtonActive,
                          ImVec4(1.0f, 1.0f, 1.0f, 1.0f));

-    float minimize_pos_x = ImGui::GetCursorPosX() + 12;
-    float minimize_pos_y = ImGui::GetCursorPosY() + 15;
-    std::string window_minimize_button = "##minimize";  // ICON_FA_MINUS;
-    if (ImGui::Button(window_minimize_button.c_str(),
-                      ImVec2(BUTTON_PADDING, 30))) {
-      SDL_MinimizeWindow(main_window ? main_window_ : stream_window_);
-    }
-    draw_list->AddLine(ImVec2(minimize_pos_x, minimize_pos_y),
-                       ImVec2(minimize_pos_x + 12, minimize_pos_y),
-                       IM_COL32(0, 0, 0, 255));
-    ImGui::PopStyleColor(2);
-
-    if (!main_window) {
-      ImGui::SetCursorPosX(stream_window_width_ - BUTTON_PADDING * 2);
-      ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
-      ImGui::PushStyleColor(ImGuiCol_ButtonActive,
-                            ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
-
-      if (window_maximized_) {
-        float pos_x_top = ImGui::GetCursorPosX() + 11;
-        float pos_y_top = ImGui::GetCursorPosY() + 11;
-        float pos_x_bottom = ImGui::GetCursorPosX() + 13;
-        float pos_y_bottom = ImGui::GetCursorPosY() + 9;
-        std::string window_restore_button =
-            "##restore";  // ICON_FA_WINDOW_RESTORE;
-        if (ImGui::Button(window_restore_button.c_str(),
-                          ImVec2(BUTTON_PADDING, 30))) {
-          SDL_RestoreWindow(stream_window_);
-          window_maximized_ = false;
-        }
-        draw_list->AddRect(ImVec2(pos_x_top, pos_y_top),
-                           ImVec2(pos_x_top + 12, pos_y_top + 12),
-                           IM_COL32(0, 0, 0, 255));
-        draw_list->AddRect(ImVec2(pos_x_bottom, pos_y_bottom),
-                           ImVec2(pos_x_bottom + 12, pos_y_bottom + 12),
-                           IM_COL32(0, 0, 0, 255));
-        draw_list->AddRectFilled(ImVec2(pos_x_top + 1, pos_y_top + 1),
-                                 ImVec2(pos_x_top + 11, pos_y_top + 11),
-                                 IM_COL32(255, 255, 255, 255));
-      } else {
-        float maximize_pos_x = ImGui::GetCursorPosX() + 12;
-        float maximize_pos_y = ImGui::GetCursorPosY() + 10;
-        std::string window_maximize_button =
-            "##maximize";  // ICON_FA_SQUARE_FULL;
-        if (ImGui::Button(window_maximize_button.c_str(),
-                          ImVec2(BUTTON_PADDING, 30))) {
-          SDL_MaximizeWindow(stream_window_);
-          window_maximized_ = !window_maximized_;
-        }
-        draw_list->AddRect(ImVec2(maximize_pos_x, maximize_pos_y),
-                           ImVec2(maximize_pos_x + 12, maximize_pos_y + 12),
-                           IM_COL32(0, 0, 0, 255));
+    if (window_maximized_) {
+      float pos_x_top = title_bar_width - title_bar_button_width * 1.65f;
+      float pos_y_top = title_bar_button_height * 0.36f;
+      float pos_x_bottom = title_bar_width - title_bar_button_width * 1.6f;
+      float pos_y_bottom = title_bar_button_height * 0.28f;
+      std::string window_restore_button =
+          "##restore";  // ICON_FA_WINDOW_RESTORE;
+      if (ImGui::Button(
+              window_restore_button.c_str(),
+              ImVec2(title_bar_button_width, title_bar_button_height))) {
+        SDL_RestoreWindow(stream_window_);
+        window_maximized_ = false;
      }
-      ImGui::PopStyleColor(2);
-    }
-
-    ImGui::SetCursorPosX(
-        (main_window ? main_window_width_ : stream_window_width_) -
-        BUTTON_PADDING);
-    ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(1.0f, 0, 0, 1.0f));
-    ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(1.0f, 0, 0, 0.5f));
-
-    float xmark_pos_x = ImGui::GetCursorPosX() + 18;
-    float xmark_pos_y = ImGui::GetCursorPosY() + 16;
-    float xmark_size = 12.0f;
-    std::string close_button = "##xmark";  // ICON_FA_XMARK;
-    if (ImGui::Button(close_button.c_str(), ImVec2(BUTTON_PADDING, 30))) {
-#if _WIN32
-      if (enable_minimize_to_tray_) {
-        tray_->MinimizeToTray();
+      draw_list->AddRect(ImVec2(pos_x_top, pos_y_top),
+                         ImVec2(pos_x_top + title_bar_button_height * 0.33f,
+                                pos_y_top + title_bar_button_height * 0.33f),
+                         IM_COL32(0, 0, 0, 255));
+      draw_list->AddRect(ImVec2(pos_x_bottom, pos_y_bottom),
+                         ImVec2(pos_x_bottom + title_bar_button_height * 0.33f,
+                                pos_y_bottom + title_bar_button_height * 0.33f),
+                         IM_COL32(0, 0, 0, 255));
+      if (ImGui::IsItemHovered()) {
+        draw_list->AddRectFilled(
+            ImVec2(pos_x_top + title_bar_button_height * 0.02f,
+                   pos_y_top + title_bar_button_height * 0.01f),
+            ImVec2(pos_x_top + title_bar_button_height * 0.32f,
+                   pos_y_top + title_bar_button_height * 0.31f),
+            IM_COL32(229, 229, 229, 255));
      } else {
-#endif
-        SDL_Event event;
-        event.type = SDL_EVENT_QUIT;
-        SDL_PushEvent(&event);
-#if _WIN32
+        draw_list->AddRectFilled(
+            ImVec2(pos_x_top + title_bar_button_height * 0.02f,
+                   pos_y_top + title_bar_button_height * 0.01f),
+            ImVec2(pos_x_top + title_bar_button_height * 0.32f,
+                   pos_y_top + title_bar_button_height * 0.31f),
+            IM_COL32(255, 255, 255, 255));
      }
-#endif
+    } else {
+      float maximize_pos_x = title_bar_width - title_bar_button_width * 1.5f -
+                             title_bar_button_height * 0.165f;
+      float maximize_pos_y = title_bar_button_height * 0.33f;
+      std::string window_maximize_button =
+          "##maximize";  // ICON_FA_SQUARE_FULL;
+      if (ImGui::Button(
+              window_maximize_button.c_str(),
+              ImVec2(title_bar_button_width, title_bar_button_height))) {
+        SDL_MaximizeWindow(stream_window_);
+        window_maximized_ = !window_maximized_;
+      }
+      draw_list->AddRect(
+          ImVec2(maximize_pos_x, maximize_pos_y),
+          ImVec2(maximize_pos_x + title_bar_button_height * 0.33f,
+                 maximize_pos_y + title_bar_button_height * 0.33f),
+          IM_COL32(0, 0, 0, 255));
    }
-    draw_list->AddLine(ImVec2(xmark_pos_x - xmark_size / 2 - 0.25f,
-                              xmark_pos_y - xmark_size / 2 + 0.75f),
-                       ImVec2(xmark_pos_x + xmark_size / 2 - 1.5f,
-                              xmark_pos_y + xmark_size / 2 - 0.5f),
-                       IM_COL32(0, 0, 0, 255));
-    draw_list->AddLine(ImVec2(xmark_pos_x + xmark_size / 2 - 1.75f,
-                              xmark_pos_y - xmark_size / 2 + 0.75f),
-                       ImVec2(xmark_pos_x - xmark_size / 2,
-                              xmark_pos_y + xmark_size / 2 - 1.0f),
-                       IM_COL32(0, 0, 0, 255));
-
-    ImGui::PopStyleColor(2);
-
-    ImGui::PopStyleColor();
+    ImGui::PopStyleColor(3);
  }

-  ImGui::EndMenuBar();
+  float xmark_button_pos_x = title_bar_width - title_bar_button_width;
+  ImGui::SetCursorPos(ImVec2(xmark_button_pos_x, 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+  ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(1.0f, 0, 0, 1.0f));
+  ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(1.0f, 0, 0, 0.5f));
+
+  float xmark_pos_x = xmark_button_pos_x + title_bar_button_width * 0.5f;
+  float xmark_pos_y = title_bar_button_height * 0.5f;
+  float xmark_size = title_bar_button_width * 0.33f;
+  std::string close_button = "##xmark";  // ICON_FA_XMARK;
+  bool close_button_clicked = false;
+  if (main_window) {
+    close_button_clicked = RoundedCornerButton(
+        close_button.c_str(),
+        ImVec2(title_bar_button_width, title_bar_button_height), 8.5f,
+        ImDrawFlags_RoundCornersTopRight, true, IM_COL32(0, 0, 0, 0),
+        IM_COL32(250, 0, 0, 255), IM_COL32(255, 0, 0, 128));
+  } else {
+    close_button_clicked =
+        ImGui::Button(close_button.c_str(),
+                      ImVec2(title_bar_button_width, title_bar_button_height));
+  }
+
+  if (close_button_clicked) {
+#if _WIN32
+    if (enable_minimize_to_tray_) {
+      tray_->MinimizeToTray();
+    } else {
+#endif
+      SDL_Event event;
+      event.type = SDL_EVENT_QUIT;
+      SDL_PushEvent(&event);
+#if _WIN32
+    }
+#endif
+  }
+
+  draw_list->AddLine(ImVec2(xmark_pos_x - xmark_size / 2 - 0.25f,
+                            xmark_pos_y - xmark_size / 2 + 0.75f),
+                     ImVec2(xmark_pos_x + xmark_size / 2 - 1.5f,
+                            xmark_pos_y + xmark_size / 2 - 0.5f),
+                     IM_COL32(0, 0, 0, 255));
+  draw_list->AddLine(
+      ImVec2(xmark_pos_x + xmark_size / 2 - 1.75f,
+             xmark_pos_y - xmark_size / 2 + 0.75f),
+      ImVec2(xmark_pos_x - xmark_size / 2, xmark_pos_y + xmark_size / 2 - 1.0f),
+      IM_COL32(0, 0, 0, 255));
+
+  ImGui::PopStyleColor(3);
+
  ImGui::EndChild();
-  ImGui::PopStyleColor();
  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/tray/win_tray.cpp
+++ b/src/gui/tray/win_tray.cpp
@@ -89,7 +89,7 @@ bool WinTray::HandleTrayMessage(MSG* msg) {
      GetCursorPos(&pt);
      HMENU menu = CreatePopupMenu();
      AppendMenuW(menu, MF_STRING, 1001,
-                  localization::exit_program[language_index_]);
+                  localization::GetExitProgramLabel(language_index_));

      SetForegroundWindow(hwnd_message_only_);
      int cmd =
@@ -112,4 +112,4 @@ bool WinTray::HandleTrayMessage(MSG* msg) {
  }
  return true;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/windows/about_window.cpp
+++ b/src/gui/windows/about_window.cpp
@@ -1,6 +1,10 @@
 #include <cstdlib>
 #include <string>

+#if defined(_WIN32)
+#include <windows.h>
+#endif
+
 #include "layout.h"
 #include "localization.h"
 #include "rd_log.h"
@@ -8,11 +12,44 @@

 namespace crossdesk {

-void Hyperlink(const std::string& label, const std::string& url,
-               const float window_width) {
+bool Render::OpenUrl(const std::string& url) {
+#if defined(_WIN32)
+  int wide_len = MultiByteToWideChar(CP_UTF8, 0, url.c_str(), -1, nullptr, 0);
+  if (wide_len <= 0) {
+    return false;
+  }
+
+  std::wstring wide_url(static_cast<size_t>(wide_len), L'\0');
+  MultiByteToWideChar(CP_UTF8, 0, url.c_str(), -1, &wide_url[0], wide_len);
+  if (!wide_url.empty() && wide_url.back() == L'\0') {
+    wide_url.pop_back();
+  }
+
+  std::wstring cmd = L"cmd.exe /c start \"\" \"" + wide_url + L"\"";
+  STARTUPINFOW startup_info = {sizeof(startup_info)};
+  PROCESS_INFORMATION process_info = {};
+  if (!CreateProcessW(nullptr, &cmd[0], nullptr, nullptr, FALSE,
+                      CREATE_NO_WINDOW, nullptr, nullptr, &startup_info,
+                      &process_info)) {
+    return false;
+  }
+
+  CloseHandle(process_info.hThread);
+  CloseHandle(process_info.hProcess);
+  return true;
+#elif defined(__APPLE__)
+  std::string cmd = "open " + url;
+  return system(cmd.c_str()) == 0;
+#else
+  std::string cmd = "xdg-open " + url;
+  return system(cmd.c_str()) == 0;
+#endif
+}
+
+void Render::Hyperlink(const std::string& label, const std::string& url,
+                       const float window_width) {
  ImGui::PushStyleColor(ImGuiCol_Text, IM_COL32(0, 0, 255, 255));
-  ImGui::SetCursorPosX(window_width * 0.1f);
-  ImGui::Text("%s", label.c_str());
+  ImGui::TextUnformatted(label.c_str());
  ImGui::PopStyleColor();

  if (ImGui::IsItemHovered()) {
@@ -23,36 +60,30 @@ void Hyperlink(const std::string& label, const std::string& url,
    ImGui::SetWindowFontScale(1.0f);
    ImGui::EndTooltip();
    if (ImGui::IsMouseClicked(ImGuiMouseButton_Left)) {
-#if defined(_WIN32)
-      std::string cmd = "start " + url;
-#elif defined(__APPLE__)
-      std::string cmd = "open " + url;
-#else
-      std::string cmd = "xdg-open " + url;
-#endif
-      system(cmd.c_str());  // open browser
+      OpenUrl(url);
    }
  }
 }

 int Render::AboutWindow() {
  if (show_about_window_) {
-    const ImGuiViewport* viewport = ImGui::GetMainViewport();
-
+    float about_window_width = title_bar_button_width_ * 7.5f;
    float about_window_height = latest_version_.empty()
-                                    ? about_window_height_
-                                    : about_window_height_ + 20.0f;
+                                    ? title_bar_button_width_ * 4.0f
+                                    : title_bar_button_width_ * 4.9f;
+
+    const ImGuiViewport* viewport = ImGui::GetMainViewport();
    ImGui::SetNextWindowPos(ImVec2(
-        (viewport->WorkSize.x - viewport->WorkPos.x - about_window_width_) / 2,
+        (viewport->WorkSize.x - viewport->WorkPos.x - about_window_width) / 2,
        (viewport->WorkSize.y - viewport->WorkPos.y - about_window_height) /
            2));

-    ImGui::SetNextWindowSize(ImVec2(about_window_width_, about_window_height));
+    ImGui::SetNextWindowSize(ImVec2(about_window_width, about_window_height));

    ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
-    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
-    ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+    ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
    ImGui::SetWindowFontScale(0.5f);
    ImGui::Begin(
        localization::about[localization_language_index_].c_str(), nullptr,
@@ -70,29 +101,36 @@ int Render::AboutWindow() {

    std::string text = localization::version[localization_language_index_] +
                       ": CrossDesk " + version;
-    ImGui::SetCursorPosX(about_window_width_ * 0.1f);
+    ImGui::SetCursorPosX(about_window_width * 0.1f);
    ImGui::Text("%s", text.c_str());

-    if (update_available_) {
-      std::string latest_version =
+    if (0) {
+      std::string new_version_available =
          localization::new_version_available[localization_language_index_] +
-          ": " + latest_version_;
+          ": ";
+      ImGui::SetCursorPosX(about_window_width * 0.1f);
+      ImGui::Text("%s", new_version_available.c_str());
      std::string access_website =
          localization::access_website[localization_language_index_];
-      Hyperlink(latest_version, "https://crossdesk.cn", about_window_width_);
-    }
+      ImGui::SetCursorPosX((about_window_width -
+                            ImGui::CalcTextSize(latest_version_.c_str()).x) /
+                           2.0f);
+      Hyperlink(latest_version_, "https://crossdesk.cn", about_window_width);

-    ImGui::Text("");
+      ImGui::Spacing();
+    } else {
+      ImGui::Text("%s", "");
+    }

    std::string copyright_text = "© 2025 by JUNKUN DI. All rights reserved.";
    std::string license_text = "Licensed under GNU LGPL v3.";
-    ImGui::SetCursorPosX(about_window_width_ * 0.1f);
+    ImGui::SetCursorPosX(about_window_width * 0.1f);
    ImGui::Text("%s", copyright_text.c_str());
-    ImGui::SetCursorPosX(about_window_width_ * 0.1f);
+    ImGui::SetCursorPosX(about_window_width * 0.1f);
    ImGui::Text("%s", license_text.c_str());

-    ImGui::SetCursorPosX(about_window_width_ * 0.42f);
-    ImGui::SetCursorPosY(about_window_height * 0.75f);
+    ImGui::SetCursorPosX(about_window_width * 0.445f);
+    ImGui::SetCursorPosY(about_window_height * 0.8f);
    // OK
    if (ImGui::Button(localization::ok[localization_language_index_].c_str())) {
      show_about_window_ = false;
--- a/src/gui/windows/connection_status_window.cpp
+++ b/src/gui/windows/connection_status_window.cpp
@@ -7,42 +7,51 @@ namespace crossdesk {

 bool Render::ConnectionStatusWindow(
    std::shared_ptr<SubStreamWindowProperties>& props) {
-  const ImGuiViewport* viewport = ImGui::GetMainViewport();
+  ImGuiIO& io = ImGui::GetIO();
  bool ret_flag = false;
-  ImGui::SetNextWindowPos(ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                                  connection_status_window_width_) /
-                                     2,
-                                 (viewport->WorkSize.y - viewport->WorkPos.y -
-                                  connection_status_window_height_) /
-                                     2));

-  ImGui::SetNextWindowSize(ImVec2(connection_status_window_width_,
-                                  connection_status_window_height_));
+  ImGui::SetNextWindowPos(
+      ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));
+  ImGui::SetNextWindowSize(
+      ImVec2(io.DisplaySize.x * 0.33f, io.DisplaySize.y * 0.33f));

-  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
-
-  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0, 1.0, 1.0, 1.0));
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
-  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);

  ImGui::Begin("ConnectionStatusWindow", nullptr,
-               ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                   ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
+               ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
                   ImGuiWindowFlags_NoSavedSettings);
  ImGui::PopStyleVar(2);
  ImGui::PopStyleColor();

+  auto connection_status_window_width = ImGui::GetWindowSize().x;
+  auto connection_status_window_height = ImGui::GetWindowSize().y;
+
  ImGui::SetWindowFontScale(0.5f);
  std::string text;

  if (ConnectionStatus::Connecting == props->connection_status_) {
    text = localization::p2p_connecting[localization_language_index_];
-    ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-    ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
+    // cancel
+    if (ImGui::Button(
+            localization::cancel[localization_language_index_].c_str()) ||
+        ImGui::IsKeyPressed(ImGuiKey_Escape)) {
+      show_connection_status_window_ = false;
+      re_enter_remote_id_ = true;
+      LOG_INFO("User cancelled connecting to [{}]", props->remote_id_);
+      if (props->peer_) {
+        LeaveConnection(props->peer_, props->remote_id_.c_str());
+      }
+      ret_flag = true;
+    }
  } else if (ConnectionStatus::Connected == props->connection_status_) {
    text = localization::p2p_connected[localization_language_index_];
-    ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-    ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
    // ok
    if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
        ImGui::IsKeyPressed(ImGuiKey_Enter) ||
@@ -51,8 +60,8 @@ bool Render::ConnectionStatusWindow(
    }
  } else if (ConnectionStatus::Disconnected == props->connection_status_) {
    text = localization::p2p_disconnected[localization_language_index_];
-    ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-    ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
    // ok
    if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
        ImGui::IsKeyPressed(ImGuiKey_Enter) ||
@@ -61,8 +70,8 @@ bool Render::ConnectionStatusWindow(
    }
  } else if (ConnectionStatus::Failed == props->connection_status_) {
    text = localization::p2p_failed[localization_language_index_];
-    ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-    ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
    // ok
    if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
        ImGui::IsKeyPressed(ImGuiKey_Enter) ||
@@ -71,8 +80,8 @@ bool Render::ConnectionStatusWindow(
    }
  } else if (ConnectionStatus::Closed == props->connection_status_) {
    text = localization::p2p_closed[localization_language_index_];
-    ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-    ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
    // ok
    if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
        ImGui::IsKeyPressed(ImGuiKey_Enter) ||
@@ -87,11 +96,9 @@ bool Render::ConnectionStatusWindow(
        text = localization::reinput_password[localization_language_index_];
      }

-      auto window_width = ImGui::GetWindowSize().x;
-      auto window_height = ImGui::GetWindowSize().y;
-      ImGui::SetCursorPosX((window_width - IPUT_WINDOW_WIDTH / 2) * 0.5f);
-      ImGui::SetCursorPosY(window_height * 0.4f);
-      ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH / 2);
+      ImGui::SetCursorPosX(connection_status_window_width * 0.336f);
+      ImGui::SetCursorPosY(connection_status_window_height * 0.4f);
+      ImGui::SetNextItemWidth(connection_status_window_width * 0.33f);

      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);

@@ -109,15 +116,16 @@ bool Render::ConnectionStatusWindow(
      ImVec2 text_size = ImGui::CalcTextSize(
          localization::remember_password[localization_language_index_]
              .c_str());
-      ImGui::SetCursorPosX((window_width - text_size.x) * 0.5f - 13.0f);
+      ImGui::SetCursorPosX((connection_status_window_width - text_size.x) *
+                           0.45f);
      ImGui::Checkbox(
          localization::remember_password[localization_language_index_].c_str(),
          &(props->remember_password_));
      ImGui::SetWindowFontScale(0.5f);
      ImGui::PopStyleVar();

-      ImGui::SetCursorPosX(window_width * 0.315f);
-      ImGui::SetCursorPosY(window_height * 0.75f);
+      ImGui::SetCursorPosX(connection_status_window_width * 0.325f);
+      ImGui::SetCursorPosY(connection_status_window_height * 0.75f);
      // ok
      if (ImGui::Button(
              localization::ok[localization_language_index_].c_str()) ||
@@ -140,14 +148,14 @@ bool Render::ConnectionStatusWindow(
      }
    } else if (password_validating_) {
      text = localization::validate_password[localization_language_index_];
-      ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-      ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+      ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+      ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
    }
  } else if (ConnectionStatus::NoSuchTransmissionId ==
             props->connection_status_) {
    text = localization::no_such_id[localization_language_index_];
-    ImGui::SetCursorPosX(connection_status_window_width_ * 3 / 7);
-    ImGui::SetCursorPosY(connection_status_window_height_ * 2 / 3);
+    ImGui::SetCursorPosX(connection_status_window_width * 0.43f);
+    ImGui::SetCursorPosY(connection_status_window_height * 0.67f);
    // ok
    if (ImGui::Button(localization::ok[localization_language_index_].c_str()) ||
        ImGui::IsKeyPressed(ImGuiKey_Enter)) {
@@ -158,11 +166,9 @@ bool Render::ConnectionStatusWindow(
    }
  }

-  auto window_width = ImGui::GetWindowSize().x;
-  auto window_height = ImGui::GetWindowSize().y;
  auto text_width = ImGui::CalcTextSize(text.c_str()).x;
-  ImGui::SetCursorPosX((window_width - text_width) * 0.5f);
-  ImGui::SetCursorPosY(window_height * 0.2f);
+  ImGui::SetCursorPosX((connection_status_window_width - text_width) * 0.5f);
+  ImGui::SetCursorPosY(connection_status_window_height * 0.2f);
  ImGui::Text("%s", text.c_str());
  ImGui::SetWindowFontScale(1.0f);

--- a/src/gui/windows/control_window.cpp
+++ b/src/gui/windows/control_window.cpp
@@ -42,50 +42,74 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
    }
  }

-  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1, 1, 1, 1));
-  ImGui::PushStyleVar(ImGuiStyleVar_WindowMinSize, ImVec2(0, 0));
-  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 10.0f);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0, 0, 0, 0));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_ * 1.5f);
  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
-  ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 10.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, window_rounding_ * 1.5f);
  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));

-  ImGui::SetNextWindowSize(
-      ImVec2(props->control_window_width_, props->control_window_height_),
-      ImGuiCond_Always);
+  float y_boundary = fullscreen_button_pressed_ ? 0.0f : title_bar_height_;
+  float container_x = 0.0f;
+  float container_y = y_boundary;
+  float container_w = stream_window_width_;
+  float container_h = stream_window_height_ - y_boundary;

-  ImGui::SetNextWindowPos(ImVec2(0, title_bar_height_ + 1), ImGuiCond_Once);
+  ImGui::SetNextWindowSize(ImVec2(container_w, container_h), ImGuiCond_Always);
+  ImGui::SetNextWindowPos(ImVec2(container_x, container_y), ImGuiCond_Always);

  float pos_x = 0;
  float pos_y = 0;
-  float y_boundary = fullscreen_button_pressed_ ? 0 : (title_bar_height_ + 1);

-  if (props->reset_control_bar_pos_) {
-    float new_cursor_pos_x = 0;
-    float new_cursor_pos_y = 0;
+  std::string container_window_title =
+      props->remote_id_ + "ControlContainerWindow";
+  ImGui::Begin(container_window_title.c_str(), nullptr,
+               ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
+                   ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoDocking |
+                   ImGuiWindowFlags_NoBackground);
+  ImGui::PopStyleVar();
+
+  ImVec2 container_pos = ImGui::GetWindowPos();
+
+  if (ImGui::IsMouseDown(ImGuiMouseButton_Left) &&
+      props->control_bar_hovered_) {
+    float current_x_rel = props->control_window_pos_.x - container_pos.x;
+    float current_y_rel = props->control_window_pos_.y - container_pos.y;
+    ImVec2 delta = ImGui::GetIO().MouseDelta;
+    pos_x = current_x_rel + delta.x;
+    pos_y = current_y_rel + delta.y;
+    if (pos_x < 0.0f) pos_x = 0.0f;
+    if (pos_y < 0.0f) pos_y = 0.0f;
+    if (pos_x + props->control_window_width_ > container_w)
+      pos_x = container_w - props->control_window_width_;
+    if (pos_y + props->control_window_height_ > container_h)
+      pos_y = container_h - props->control_window_height_;
+  } else if (props->reset_control_bar_pos_) {
+    float new_cursor_pos_x = 0.0f;
+    float new_cursor_pos_y = 0.0f;

    // set control window pos
-    if (props->control_window_pos_.y + props->control_window_height_ >
-        stream_window_height_) {
-      pos_y = stream_window_height_ - props->control_window_height_;
-    } else if (props->control_window_pos_.y < y_boundary) {
-      pos_y = y_boundary;
+    float current_y_rel = props->control_window_pos_.y - container_pos.y;
+    if (current_y_rel + props->control_window_height_ > container_h) {
+      pos_y = container_h - props->control_window_height_;
+    } else if (current_y_rel < 0.0f) {
+      pos_y = 0.0f;
    } else {
-      pos_y = props->control_window_pos_.y;
+      pos_y = current_y_rel;
    }

    if (props->is_control_bar_in_left_) {
-      pos_x = 0;
+      pos_x = 0.0f;
    } else {
-      pos_x = stream_window_width_ - props->control_window_width_;
+      pos_x = container_w - props->control_window_width_;
    }

-    ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
-
    if (0 != props->mouse_diff_control_bar_pos_x_ &&
        0 != props->mouse_diff_control_bar_pos_y_) {
      // set cursor pos
-      new_cursor_pos_x = pos_x + props->mouse_diff_control_bar_pos_x_;
-      new_cursor_pos_y = pos_y + props->mouse_diff_control_bar_pos_y_;
+      new_cursor_pos_x =
+          container_pos.x + pos_x + props->mouse_diff_control_bar_pos_x_;
+      new_cursor_pos_y =
+          container_pos.y + pos_y + props->mouse_diff_control_bar_pos_y_;

      SDL_WarpMouseInWindow(stream_window_, (int)new_cursor_pos_x,
                            (int)new_cursor_pos_y);
@@ -94,12 +118,14 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
  } else if (!props->reset_control_bar_pos_ &&
                 ImGui::IsMouseReleased(ImGuiMouseButton_Left) ||
             props->control_window_width_is_changing_) {
-    if (props->control_window_pos_.x <= stream_window_width_ / 2) {
-      if (props->control_window_pos_.y + props->control_window_height_ >
-          stream_window_height_) {
-        pos_y = stream_window_height_ - props->control_window_height_;
+    float current_x_rel = props->control_window_pos_.x - container_pos.x;
+    float current_y_rel = props->control_window_pos_.y - container_pos.y;
+    if (current_x_rel <= container_w * 0.5f) {
+      pos_x = 0.0f;
+      if (current_y_rel + props->control_window_height_ > container_h) {
+        pos_y = container_h - props->control_window_height_;
      } else {
-        pos_y = props->control_window_pos_.y;
+        pos_y = current_y_rel;
      }

      if (props->control_bar_expand_) {
@@ -118,49 +144,53 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
        }
      }
      props->is_control_bar_in_left_ = true;
-    } else if (props->control_window_pos_.x > stream_window_width_ / 2) {
-      pos_x = 0;
-      pos_y =
-          (props->control_window_pos_.y >= y_boundary &&
-           props->control_window_pos_.y <=
-               stream_window_height_ - props->control_window_height_)
-              ? props->control_window_pos_.y
-              : (props->control_window_pos_.y < (fullscreen_button_pressed_
-                                                     ? 0
-                                                     : (title_bar_height_ + 1))
-                     ? (fullscreen_button_pressed_ ? 0
-                                                   : (title_bar_height_ + 1))
-                     : (stream_window_height_ - props->control_window_height_));
+    } else if (current_x_rel > container_w * 0.5f) {
+      pos_x = container_w - props->control_window_width_;
+      pos_y = (current_y_rel >= 0.0f &&
+               current_y_rel <= container_h - props->control_window_height_)
+                  ? current_y_rel
+                  : (current_y_rel < 0.0f
+                         ? 0.0f
+                         : (container_h - props->control_window_height_));

      if (props->control_bar_expand_) {
        if (props->control_window_width_ >= props->control_window_max_width_) {
          props->control_window_width_ = props->control_window_max_width_;
          props->control_window_width_is_changing_ = false;
-          pos_x = stream_window_width_ - props->control_window_max_width_;
+          pos_x = container_w - props->control_window_max_width_;
        } else {
          props->control_window_width_is_changing_ = true;
-          pos_x = stream_window_width_ - props->control_window_width_;
+          pos_x = container_w - props->control_window_width_;
        }
      } else {
        if (props->control_window_width_ <= props->control_window_min_width_) {
          props->control_window_width_ = props->control_window_min_width_;
          props->control_window_width_is_changing_ = false;
-          pos_x = stream_window_width_ - props->control_window_min_width_;
+          pos_x = container_w - props->control_window_min_width_;
        } else {
          props->control_window_width_is_changing_ = true;
-          pos_x = stream_window_width_ - props->control_window_width_;
+          pos_x = container_w - props->control_window_width_;
        }
      }
      props->is_control_bar_in_left_ = false;
    }

-    if (props->control_window_pos_.y + props->control_window_height_ >
-        stream_window_height_) {
-      pos_y = stream_window_height_ - props->control_window_height_;
-    } else if (props->control_window_pos_.y < y_boundary) {
-      pos_y = y_boundary;
+    if (current_y_rel + props->control_window_height_ > container_h) {
+      pos_y = container_h - props->control_window_height_;
+    } else if (current_y_rel < 0.0f) {
+      pos_y = 0.0f;
    }
-    ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
+  } else {
+    float current_x_rel = props->control_window_pos_.x - container_pos.x;
+    float current_y_rel = props->control_window_pos_.y - container_pos.y;
+    pos_x = current_x_rel;
+    pos_y = current_y_rel;
+    if (pos_x < 0.0f) pos_x = 0.0f;
+    if (pos_y < 0.0f) pos_y = 0.0f;
+    if (pos_x + props->control_window_width_ > container_w)
+      pos_x = container_w - props->control_window_width_;
+    if (pos_y + props->control_window_height_ > container_h)
+      pos_y = container_h - props->control_window_height_;
  }

  if (props->control_bar_expand_ && props->control_window_height_is_changing_) {
@@ -182,10 +212,20 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
  }

  std::string control_window_title = props->remote_id_ + "ControlWindow";
-  ImGui::Begin(control_window_title.c_str(), nullptr,
-               ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
-                   ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoDocking);
-  ImGui::PopStyleVar();
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  static bool a, b, c, d, e;
+  float child_cursor_x = pos_x;
+  float child_cursor_y = pos_y;
+  ImGui::SetCursorPos(ImVec2(child_cursor_x, child_cursor_y));
+
+  std::string control_child_window_title =
+      props->remote_id_ + "ControlChildWindow";
+  ImGui::BeginChild(
+      control_child_window_title.c_str(),
+      ImVec2(props->control_window_width_, props->control_window_height_),
+      ImGuiChildFlags_Borders, ImGuiWindowFlags_NoDecoration);
+  ImGui::PopStyleColor();

  props->control_window_pos_ = ImGui::GetWindowPos();
  SDL_GetMouseState(&props->mouse_pos_x_, &props->mouse_pos_y_);
@@ -194,33 +234,27 @@ int Render::ControlWindow(std::shared_ptr<SubStreamWindowProperties>& props) {
  props->mouse_diff_control_bar_pos_y_ =
      props->mouse_pos_y_ - props->control_window_pos_.y;

-  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
-  static bool a, b, c, d, e;
-  ImGui::SetNextWindowPos(
-      ImVec2(props->is_control_bar_in_left_
-                 ? props->control_window_pos_.x - props->control_window_width_
-                 : props->control_window_pos_.x,
-             props->control_window_pos_.y),
-      ImGuiCond_Always);
-  ImGui::SetWindowFontScale(0.5f);
-
-  std::string control_child_window_title =
-      props->remote_id_ + "ControlChildWindow";
-  ImGui::BeginChild(
-      control_child_window_title.c_str(),
-      ImVec2(props->control_window_width_ * 2, props->control_window_height_),
-      ImGuiChildFlags_Border, ImGuiWindowFlags_NoDecoration);
-  ImGui::SetWindowFontScale(1.0f);
-  ImGui::PopStyleColor();
+  if (props->control_window_pos_.y < container_pos.y ||
+      props->control_window_pos_.y + props->control_window_height_ >
+          (container_pos.y + container_h) ||
+      props->control_window_pos_.x < container_pos.x ||
+      props->control_window_pos_.x + props->control_window_width_ >
+          (container_pos.x + container_w)) {
+    ImGui::ClearActiveID();
+    props->reset_control_bar_pos_ = true;
+    props->mouse_diff_control_bar_pos_x_ = 0;
+    props->mouse_diff_control_bar_pos_y_ = 0;
+  }

  ControlBar(props);
  props->control_bar_hovered_ = ImGui::IsWindowHovered();

  ImGui::EndChild();
  ImGui::End();
-  ImGui::PopStyleVar(4);
+  ImGui::PopStyleVar(3);
  ImGui::PopStyleColor();

  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
+
--- a/src/gui/windows/file_transfer_window.cpp
+++ b/src/gui/windows/file_transfer_window.cpp
@@ -0,0 +1,245 @@
+#include <algorithm>
+#include <cmath>
+
+#include "IconsFontAwesome6.h"
+#include "layout.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+namespace crossdesk {
+
+namespace {
+int CountDigits(int number) {
+  if (number == 0) return 1;
+  return (int)std::floor(std::log10(std::abs(number))) + 1;
+}
+
+int BitrateDisplay(int bitrate) {
+  int num_of_digits = CountDigits(bitrate);
+  if (num_of_digits <= 3) {
+    ImGui::Text("%d bps", bitrate);
+  } else if (num_of_digits > 3 && num_of_digits <= 6) {
+    ImGui::Text("%d kbps", bitrate / 1000);
+  } else {
+    ImGui::Text("%.1f mbps", bitrate / 1000000.0f);
+  }
+  return 0;
+}
+}  // namespace
+
+int Render::FileTransferWindow(
+    std::shared_ptr<SubStreamWindowProperties>& props) {
+  FileTransferState* state = props ? &props->file_transfer_ : &file_transfer_;
+
+  // Only show window if there are files in transfer list or currently
+  // transferring
+  std::vector<SubStreamWindowProperties::FileTransferInfo> file_list;
+  {
+    std::lock_guard<std::mutex> lock(state->file_transfer_list_mutex_);
+    file_list = state->file_transfer_list_;
+  }
+
+  // Sort file list: Sending first, then Completed, then Queued, then Failed
+  std::sort(
+      file_list.begin(), file_list.end(),
+      [](const SubStreamWindowProperties::FileTransferInfo& a,
+         const SubStreamWindowProperties::FileTransferInfo& b) {
+        // Priority: Sending > Completed > Queued > Failed
+        auto get_priority =
+            [](SubStreamWindowProperties::FileTransferStatus status) {
+              switch (status) {
+                case SubStreamWindowProperties::FileTransferStatus::Sending:
+                  return 0;
+                case SubStreamWindowProperties::FileTransferStatus::Completed:
+                  return 1;
+                case SubStreamWindowProperties::FileTransferStatus::Queued:
+                  return 2;
+                case SubStreamWindowProperties::FileTransferStatus::Failed:
+                  return 3;
+              }
+              return 3;
+            };
+        return get_priority(a.status) < get_priority(b.status);
+      });
+
+  // Only show window if file_transfer_window_visible_ is true
+  // Window can be closed by user even during transfer
+  // It will be reopened automatically when:
+  // 1. A file transfer completes (in render_callback.cpp)
+  // 2. A new file starts sending from queue (in render.cpp)
+  if (!state->file_transfer_window_visible_) {
+    return 0;
+  }
+
+  ImGuiIO& io = ImGui::GetIO();
+
+  // Position window at bottom-left of stream window
+  // Adjust window size based on number of files
+  float file_transfer_window_width = main_window_width_ * 0.6f;
+  float file_transfer_window_height =
+      main_window_height_ * 0.3f;  // Dynamic height
+  float pos_x = file_transfer_window_width * 0.05f;
+  float pos_y = stream_window_height_ - file_transfer_window_height -
+                file_transfer_window_width * 0.05;
+  float same_line_width = file_transfer_window_width * 0.1f;
+
+  ImGui::SetNextWindowPos(ImVec2(pos_x, pos_y), ImGuiCond_Always);
+  ImGui::SetNextWindowSize(
+      ImVec2(file_transfer_window_width, file_transfer_window_height),
+      ImGuiCond_Always);
+
+  // Set Chinese font for proper display
+  if (stream_windows_system_chinese_font_) {
+    ImGui::PushFont(stream_windows_system_chinese_font_);
+  }
+
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_ * 0.5f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 0.9f));
+  ImGui::PushStyleColor(ImGuiCol_Border, ImVec4(0.0f, 0.0f, 0.0f, 0.3f));
+  ImGui::PushStyleColor(ImGuiCol_TitleBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::PushStyleColor(ImGuiCol_TitleBgActive, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+
+  ImGui::SetWindowFontScale(0.5f);
+  bool window_opened = true;
+  if (ImGui::Begin(
+          localization::file_transfer_progress[localization_language_index_]
+              .c_str(),
+          &window_opened,
+          ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoResize |
+              ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings |
+              ImGuiWindowFlags_NoScrollbar)) {
+    ImGui::SetWindowFontScale(1.0f);
+    ImGui::SetWindowFontScale(0.5f);
+    ImGui::PopStyleColor(4);
+    ImGui::PopStyleVar(2);
+
+    // Close button handling
+    if (!window_opened) {
+      state->file_transfer_window_visible_ = false;
+      ImGui::End();
+      return 0;
+    }
+
+    // Display file list
+    if (file_list.empty()) {
+      ImGui::Text("No files in transfer queue");
+    } else {
+      // Use a scrollable child window for the file list
+      ImGui::SetWindowFontScale(0.5f);
+      ImGui::BeginChild(
+          "FileList", ImVec2(0, file_transfer_window_height * 0.75f),
+          ImGuiChildFlags_Borders, ImGuiWindowFlags_HorizontalScrollbar);
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::SetWindowFontScale(0.5f);
+
+      for (size_t i = 0; i < file_list.size(); ++i) {
+        const auto& info = file_list[i];
+        ImGui::PushID(static_cast<int>(i));
+
+        // Status icon and file name
+        const char* status_icon = "";
+        ImVec4 status_color(0.5f, 0.5f, 0.5f, 1.0f);
+        const char* status_text = "";
+
+        switch (info.status) {
+          case SubStreamWindowProperties::FileTransferStatus::Queued:
+            status_icon = ICON_FA_CLOCK;
+            status_color =
+                ImVec4(0.5f, 0.6f, 0.7f, 1.0f);  // Common blue-gray for queued
+            status_text =
+                localization::queued[localization_language_index_].c_str();
+            break;
+          case SubStreamWindowProperties::FileTransferStatus::Sending:
+            status_icon = ICON_FA_ARROW_UP;
+            status_color = ImVec4(0.2f, 0.6f, 1.0f, 1.0f);
+            status_text =
+                localization::sending[localization_language_index_].c_str();
+            break;
+          case SubStreamWindowProperties::FileTransferStatus::Completed:
+            status_icon = ICON_FA_CHECK;
+            status_color = ImVec4(0.0f, 0.8f, 0.0f, 1.0f);
+            status_text =
+                localization::completed[localization_language_index_].c_str();
+            break;
+          case SubStreamWindowProperties::FileTransferStatus::Failed:
+            status_icon = ICON_FA_XMARK;
+            status_color = ImVec4(1.0f, 0.2f, 0.2f, 1.0f);
+            status_text =
+                localization::failed[localization_language_index_].c_str();
+            break;
+        }
+
+        ImGui::TextColored(status_color, "%s", status_icon);
+        ImGui::SameLine();
+        ImGui::Text("%s", info.file_name.c_str());
+        ImGui::SameLine();
+        ImGui::TextColored(status_color, "%s", status_text);
+
+        // Progress bar for sending files
+        if (info.status ==
+                SubStreamWindowProperties::FileTransferStatus::Sending &&
+            info.file_size > 0) {
+          float progress = static_cast<float>(info.sent_bytes) /
+                           static_cast<float>(info.file_size);
+          progress = (std::max)(0.0f, (std::min)(1.0f, progress));
+
+          float text_height = ImGui::GetTextLineHeight();
+          ImGui::ProgressBar(
+              progress, ImVec2(file_transfer_window_width * 0.5f, text_height),
+              "");
+          ImGui::SameLine();
+
+          ImGui::Text("%.1f%%", progress * 100.0f);
+          ImGui::SameLine();
+
+          float speed_x_pos = file_transfer_window_width * 0.65f;
+          ImGui::SetCursorPosX(speed_x_pos);
+          BitrateDisplay(static_cast<int>(info.rate_bps));
+        } else if (info.status ==
+                   SubStreamWindowProperties::FileTransferStatus::Completed) {
+          // Show completed size
+          char size_str[64];
+          if (info.file_size < 1024) {
+            snprintf(size_str, sizeof(size_str), "%llu B",
+                     (unsigned long long)info.file_size);
+          } else if (info.file_size < 1024 * 1024) {
+            snprintf(size_str, sizeof(size_str), "%.2f KB",
+                     info.file_size / 1024.0f);
+          } else {
+            snprintf(size_str, sizeof(size_str), "%.2f MB",
+                     info.file_size / (1024.0f * 1024.0f));
+          }
+          ImGui::Text("Size: %s", size_str);
+        }
+
+        ImGui::PopID();
+        ImGui::Spacing();
+      }
+
+      ImGui::SetWindowFontScale(1.0f);
+      ImGui::SetWindowFontScale(0.5f);
+      ImGui::EndChild();
+      ImGui::SetWindowFontScale(1.0f);
+    }
+    ImGui::SetWindowFontScale(1.0f);
+    ImGui::SetWindowFontScale(0.5f);
+    ImGui::End();
+    ImGui::SetWindowFontScale(1.0f);
+
+    // Pop Chinese font if it was pushed
+    if (stream_windows_system_chinese_font_) {
+      ImGui::PopFont();
+    }
+  } else {
+    ImGui::PopStyleColor(4);
+    ImGui::PopStyleVar(2);
+  }
+  ImGui::SetWindowFontScale(1.0f);
+
+  return 0;
+}
+
+}  // namespace crossdesk
+
--- a/src/gui/windows/main_settings_window.cpp
+++ b/src/gui/windows/main_settings_window.cpp
@@ -2,35 +2,43 @@
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
+#include "tinyfiledialogs.h"

 namespace crossdesk {

 int Render::SettingWindow() {
+  ImGuiIO& io = ImGui::GetIO();
  if (show_settings_window_) {
    if (settings_window_pos_reset_) {
      const ImGuiViewport* viewport = ImGui::GetMainViewport();
      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+#if (((defined(_WIN32) || defined(__linux__)) && !defined(__aarch64__) && \
+      !defined(__arm__) && USE_CUDA) ||                                   \
+     defined(__APPLE__))
        ImGui::SetNextWindowPos(
-            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                    SETTINGS_WINDOW_WIDTH_CN) /
-                       2,
-                   (viewport->WorkSize.y - viewport->WorkPos.y -
-                    SETTINGS_WINDOW_HEIGHT_CN) /
-                       2));
-
+            ImVec2(io.DisplaySize.x * 0.343f, io.DisplaySize.y * 0.05f));
        ImGui::SetNextWindowSize(
-            ImVec2(SETTINGS_WINDOW_WIDTH_CN, SETTINGS_WINDOW_HEIGHT_CN));
+            ImVec2(io.DisplaySize.x * 0.315f, io.DisplaySize.y * 0.9f));
+#else
+        ImGui::SetNextWindowPos(
+            ImVec2(io.DisplaySize.x * 0.343f, io.DisplaySize.y * 0.08f));
+        ImGui::SetNextWindowSize(
+            ImVec2(io.DisplaySize.x * 0.315f, io.DisplaySize.y * 0.85f));
+#endif
      } else {
+#if (((defined(_WIN32) || defined(__linux__)) && !defined(__aarch64__) && \
+      !defined(__arm__) && USE_CUDA) ||                                   \
+     defined(__APPLE__))
        ImGui::SetNextWindowPos(
-            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                    SETTINGS_WINDOW_WIDTH_EN) /
-                       2,
-                   (viewport->WorkSize.y - viewport->WorkPos.y -
-                    SETTINGS_WINDOW_HEIGHT_EN) /
-                       2));
-
+            ImVec2(io.DisplaySize.x * 0.297f, io.DisplaySize.y * 0.05f));
        ImGui::SetNextWindowSize(
-            ImVec2(SETTINGS_WINDOW_WIDTH_EN, SETTINGS_WINDOW_HEIGHT_EN));
+            ImVec2(io.DisplaySize.x * 0.407f, io.DisplaySize.y * 0.9f));
+#else
+        ImGui::SetNextWindowPos(
+            ImVec2(io.DisplaySize.x * 0.297f, io.DisplaySize.y * 0.08f));
+        ImGui::SetNextWindowSize(
+            ImVec2(io.DisplaySize.x * 0.407f, io.DisplaySize.y * 0.85f));
+#endif
      }

      settings_window_pos_reset_ = false;
@@ -38,40 +46,58 @@ int Render::SettingWindow() {

    // Settings
    {
-      static int settings_items_padding = 30;
+      static int settings_items_padding = title_bar_button_width_ * 0.75f;
      int settings_items_offset = 0;

-      ImGui::SetWindowFontScale(0.5f);
      ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
-      ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
-      ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+      ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);

      ImGui::Begin(localization::settings[localization_language_index_].c_str(),
                   nullptr,
                   ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
                       ImGuiWindowFlags_NoSavedSettings);
-      ImGui::SetWindowFontScale(1.0f);
      ImGui::SetWindowFontScale(0.5f);
      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
      {
-        const char* language_items[] = {
-            localization::language_zh[localization_language_index_].c_str(),
-            localization::language_en[localization_language_index_].c_str()};
+        const auto& supported_languages = localization::GetSupportedLanguages();
+        language_button_value_ =
+            localization::detail::ClampLanguageIndex(language_button_value_);

        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s", localization::language[localization_language_index_].c_str());
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(LANGUAGE_SELECT_WINDOW_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.0f);
        } else {
-          ImGui::SetCursorPosX(LANGUAGE_SELECT_WINDOW_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.5f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);

-        ImGui::Combo("##language", &language_button_value_, language_items,
-                     IM_ARRAYSIZE(language_items));
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 1.8f);
+        if (ImGui::BeginCombo(
+                "##language",
+                localization::GetSupportedLanguages()
+                    [localization::detail::ClampLanguageIndex(
+                        language_button_value_)]
+                    .display_name
+                    .c_str())) {
+          ImGui::SetWindowFontScale(0.5f);
+          for (int i = 0; i < static_cast<int>(supported_languages.size());
+               ++i) {
+            bool selected = (i == language_button_value_);
+            if (ImGui::Selectable(
+                    supported_languages[i].display_name.c_str(), selected))
+              language_button_value_ = i;
+            if (selected) {
+              ImGui::SetItemDefaultFocus();
+            }
+          }
+
+          ImGui::EndCombo();
+        }
      }

      ImGui::Separator();
@@ -90,21 +116,31 @@ int Render::SettingWindow() {
                .c_str()};

        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s",
            localization::video_quality[localization_language_index_].c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.0f);
        } else {
-          ImGui::SetCursorPosX(VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.5f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);

-        ImGui::Combo("##video_quality", &video_quality_button_value_,
-                     video_quality_items, IM_ARRAYSIZE(video_quality_items));
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 1.8f);
+        if (ImGui::BeginCombo(
+                "##video_quality",
+                video_quality_items[video_quality_button_value_])) {
+          ImGui::SetWindowFontScale(0.5f);
+          for (int i = 0; i < IM_ARRAYSIZE(video_quality_items); i++) {
+            bool selected = (i == video_quality_button_value_);
+            if (ImGui::Selectable(video_quality_items[i], selected))
+              video_quality_button_value_ = i;
+          }
+
+          ImGui::EndCombo();
+        }
      }

      ImGui::Separator();
@@ -113,22 +149,31 @@ int Render::SettingWindow() {
        const char* video_frame_rate_items[] = {"30 fps", "60 fps"};

        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text("%s",
                    localization::video_frame_rate[localization_language_index_]
                        .c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.0f);
        } else {
-          ImGui::SetCursorPosX(VIDEO_FRAME_RATE_SELECT_WINDOW_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.5f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);

-        ImGui::Combo("##video_frame_rate", &video_frame_rate_button_value_,
-                     video_frame_rate_items,
-                     IM_ARRAYSIZE(video_frame_rate_items));
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 1.8f);
+        if (ImGui::BeginCombo(
+                "##video_frame_rate",
+                video_frame_rate_items[video_frame_rate_button_value_])) {
+          ImGui::SetWindowFontScale(0.5f);
+          for (int i = 0; i < IM_ARRAYSIZE(video_frame_rate_items); i++) {
+            bool selected = (i == video_frame_rate_button_value_);
+            if (ImGui::Selectable(video_frame_rate_items[i], selected))
+              video_frame_rate_button_value_ = i;
+          }
+
+          ImGui::EndCombo();
+        }
      }

      ImGui::Separator();
@@ -139,41 +184,53 @@ int Render::SettingWindow() {
            localization::av1[localization_language_index_].c_str()};

        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s",
            localization::video_encode_format[localization_language_index_]
                .c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.0f);
        } else {
-          ImGui::SetCursorPosX(VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.5f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);

-        ImGui::Combo(
-            "##video_encode_format", &video_encode_format_button_value_,
-            video_encode_format_items, IM_ARRAYSIZE(video_encode_format_items));
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 1.8f);
+        if (ImGui::BeginCombo(
+                "##video_encode_format",
+                video_encode_format_items[video_encode_format_button_value_])) {
+          ImGui::SetWindowFontScale(0.5f);
+          for (int i = 0; i < IM_ARRAYSIZE(video_encode_format_items); i++) {
+            bool selected = (i == video_encode_format_button_value_);
+            if (ImGui::Selectable(video_encode_format_items[i], selected))
+              video_encode_format_button_value_ = i;
+          }
+
+          ImGui::EndCombo();
+        }
      }

-#if USE_CUDA && !defined(__aarch64__) && !defined(__arm__)
+#if (((defined(_WIN32) || defined(__linux__)) && !defined(__aarch64__) && \
+      !defined(__arm__) && USE_CUDA) ||                                   \
+     defined(__APPLE__))
      ImGui::Separator();

      {
        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text("%s", localization::enable_hardware_video_codec
                              [localization_language_index_]
                                  .c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
        } else {
-          ImGui::SetCursorPosX(ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
+
        ImGui::Checkbox("##enable_hardware_video_codec",
                        &enable_hardware_video_codec_);
      }
@@ -183,17 +240,18 @@ int Render::SettingWindow() {

      {
        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s",
            localization::enable_turn[localization_language_index_].c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_TURN_CHECKBOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
        } else {
-          ImGui::SetCursorPosX(ENABLE_TURN_CHECKBOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
+
        ImGui::Checkbox("##enable_turn", &enable_turn_);
      }

@@ -201,17 +259,18 @@ int Render::SettingWindow() {

      {
        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s",
            localization::enable_srtp[localization_language_index_].c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_SRTP_CHECKBOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
        } else {
-          ImGui::SetCursorPosX(ENABLE_SRTP_CHECKBOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
+
        ImGui::Checkbox("##enable_srtp", &enable_srtp_);
      }

@@ -220,19 +279,19 @@ int Render::SettingWindow() {
      {
        settings_items_offset += settings_items_padding;
        ImGui::SetCursorPosY(settings_items_offset + 1);
-
+        ImGui::AlignTextToFramePadding();
        if (ImGui::Button(localization::self_hosted_server_config
                              [localization_language_index_]
                                  .c_str())) {
          show_self_hosted_server_config_window_ = true;
        }
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
        } else {
-          ImGui::SetCursorPosX(ENABLE_SELF_HOSTED_SERVER_CHECKBOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
+
        ImGui::Checkbox("##enable_self_hosted", &enable_self_hosted_);
      }

@@ -240,18 +299,18 @@ int Render::SettingWindow() {

      {
        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
-
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text("%s",
                    localization::enable_autostart[localization_language_index_]
                        .c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_AUTOSTART_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
        } else {
-          ImGui::SetCursorPosX(ENABLE_AUTOSTART_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
+
        ImGui::Checkbox("##enable_autostart_", &enable_autostart_);
      }

@@ -259,18 +318,18 @@ int Render::SettingWindow() {

      {
        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
-
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s",
            localization::enable_daemon[localization_language_index_].c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_DAEMON_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
        } else {
-          ImGui::SetCursorPosX(ENABLE_DAEMON_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
+
        ImGui::Checkbox("##enable_daemon_", &enable_daemon_);
        if (ImGui::IsItemHovered()) {
          ImGui::BeginTooltip();
@@ -282,39 +341,104 @@ int Render::SettingWindow() {
          ImGui::EndTooltip();
        }
      }
-#if _WIN32
+
+      ImGui::Separator();
+
+      {
+#ifndef _WIN32
+        ImGui::BeginDisabled();
+        ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0.5f, 0.5f, 0.5f, 1.0f));
+#endif
+        settings_items_offset += settings_items_padding;
+        ImGui::SetCursorPosY(settings_items_offset);
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text("%s",
+                    localization::minimize_to_tray[localization_language_index_]
+                        .c_str());
+        ImGui::SameLine();
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.275f);
+        } else {
+          ImGui::SetCursorPosX(title_bar_button_width_ * 5.755f);
+        }
+
+        ImGui::Checkbox("##enable_minimize_to_tray_",
+                        &enable_minimize_to_tray_);
+#ifndef _WIN32
+        ImGui::PopStyleColor();
+        ImGui::EndDisabled();
+#endif
+      }
+
      ImGui::Separator();

      {
        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 4);
-
-        ImGui::Text("%s",
-                    localization::minimize_to_tray[localization_language_index_]
-                        .c_str());
-
-        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(ENABLE_MINIZE_TO_TRAY_PADDING_CN);
-        } else {
-          ImGui::SetCursorPosX(ENABLE_MINIZE_TO_TRAY_PADDING_EN);
-        }
        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::Checkbox("##enable_minimize_to_tray_",
-                        &enable_minimize_to_tray_);
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text(
+            "%s",
+            localization::file_transfer_save_path[localization_language_index_]
+                .c_str());
+        ImGui::SameLine();
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(title_bar_button_width_ * 2.82f);
+        } else {
+          ImGui::SetCursorPosX(title_bar_button_width_ * 4.3f);
+        }
+
+        std::string display_path =
+            strlen(file_transfer_save_path_buf_) > 0
+                ? file_transfer_save_path_buf_
+                : localization::default_desktop[localization_language_index_];
+        ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+        ImGui::PushStyleColor(ImGuiCol_ButtonHovered,
+                              ImVec4(0.95f, 0.95f, 0.95f, 1.0f));
+        ImGui::PushStyleColor(ImGuiCol_ButtonActive,
+                              ImVec4(0.9f, 0.9f, 0.9f, 1.0f));
+        ImGui::PushFont(main_windows_system_chinese_font_);
+        if (ImGui::Button(display_path.c_str(),
+                          ImVec2(title_bar_button_width_ * 2.0f, 0))) {
+          const char* folder =
+              tinyfd_selectFolderDialog(localization::file_transfer_save_path
+                                            [localization_language_index_]
+                                                .c_str(),
+                                        strlen(file_transfer_save_path_buf_) > 0
+                                            ? file_transfer_save_path_buf_
+                                            : nullptr);
+          if (folder) {
+            strncpy(file_transfer_save_path_buf_, folder,
+                    sizeof(file_transfer_save_path_buf_) - 1);
+            file_transfer_save_path_buf_[sizeof(file_transfer_save_path_buf_) -
+                                         1] = '\0';
+          }
+        }
+        if (ImGui::IsItemHovered() &&
+            strlen(file_transfer_save_path_buf_) > 0) {
+          ImGui::BeginTooltip();
+          ImGui::SetWindowFontScale(0.5f);
+          ImGui::Text("%s", file_transfer_save_path_buf_);
+          ImGui::SetWindowFontScale(1.0f);
+          ImGui::EndTooltip();
+        }
+        ImGui::PopFont();
+        ImGui::PopStyleColor(3);
      }
-#endif
+
      if (stream_window_inited_) {
        ImGui::EndDisabled();
      }

      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-        ImGui::SetCursorPosX(SETTINGS_OK_BUTTON_PADDING_CN);
+        ImGui::SetCursorPosX(title_bar_button_width_ * 1.59f);
      } else {
-        ImGui::SetCursorPosX(SETTINGS_OK_BUTTON_PADDING_EN);
+        ImGui::SetCursorPosX(title_bar_button_width_ * 2.22f);
      }

-      settings_items_offset += settings_items_padding + 10;
+      settings_items_offset +=
+          settings_items_padding + title_bar_button_width_ * 0.3f;
      ImGui::SetCursorPosY(settings_items_offset);
+
      ImGui::PopStyleVar();

      // OK
@@ -324,16 +448,24 @@ int Render::SettingWindow() {
        show_self_hosted_server_config_window_ = false;

        // Language
+        language_button_value_ =
+            localization::detail::ClampLanguageIndex(language_button_value_);
        if (language_button_value_ == 0) {
-          config_center_->SetLanguage(ConfigCenter::LANGUAGE::CHINESE);
+          localization_language_ = ConfigCenter::LANGUAGE::CHINESE;
+        } else if (language_button_value_ == 1) {
+          localization_language_ = ConfigCenter::LANGUAGE::ENGLISH;
        } else {
-          config_center_->SetLanguage(ConfigCenter::LANGUAGE::ENGLISH);
+          localization_language_ = ConfigCenter::LANGUAGE::RUSSIAN;
        }
+        config_center_->SetLanguage(localization_language_);
        language_button_value_last_ = language_button_value_;
-        localization_language_ = (ConfigCenter::LANGUAGE)language_button_value_;
        localization_language_index_ = language_button_value_;
        LOG_INFO("Set localization language: {}",
-                 localization_language_index_ == 0 ? "zh" : "en");
+                 localization::GetSupportedLanguages()
+                     [localization::detail::ClampLanguageIndex(
+                         localization_language_index_)]
+                     .code
+                     .c_str());

        // Video quality
        if (video_quality_button_value_ == 0) {
@@ -419,6 +551,10 @@ int Render::SettingWindow() {
        enable_minimize_to_tray_last_ = enable_minimize_to_tray_;
 #endif

+        // File transfer save path
+        config_center_->SetFileTransferSavePath(file_transfer_save_path_buf_);
+        file_transfer_save_path_last_ = file_transfer_save_path_buf_;
+
        settings_window_pos_reset_ = true;

        // Recreate peer instance
@@ -466,17 +602,22 @@ int Render::SettingWindow() {
          enable_turn_ = enable_turn_last_;
        }

+        // Restore file transfer save path
+        strncpy(file_transfer_save_path_buf_,
+                file_transfer_save_path_last_.c_str(),
+                sizeof(file_transfer_save_path_buf_) - 1);
+        file_transfer_save_path_buf_[sizeof(file_transfer_save_path_buf_) - 1] =
+            '\0';
+
        settings_window_pos_reset_ = true;
      }
-      ImGui::SetWindowFontScale(1.0f);
      ImGui::SetWindowFontScale(0.5f);
      ImGui::End();
      ImGui::PopStyleVar(2);
      ImGui::PopStyleColor();
-      ImGui::SetWindowFontScale(1.0f);
    }
  }

  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/windows/main_window.cpp
+++ b/src/gui/windows/main_window.cpp
@@ -1,3 +1,4 @@
+#include "layout_relative.h"
 #include "localization.h"
 #include "rd_log.h"
 #include "render.h"
@@ -5,25 +6,31 @@
 namespace crossdesk {

 int Render::MainWindow() {
-  ImGui::SetNextWindowPos(ImVec2(0, title_bar_height_), ImGuiCond_Always);
+  ImGuiIO& io = ImGui::GetIO();
+  float local_remote_window_width = io.DisplaySize.x;
+  float local_remote_window_height =
+      io.DisplaySize.y * (0.56f - TITLE_BAR_HEIGHT);
+
+  ImGui::SetNextWindowPos(ImVec2(0.0f, io.DisplaySize.y * (TITLE_BAR_HEIGHT)),
+                          ImGuiCond_Always);
  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
-  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
-  ImGui::BeginChild("DeskWindow",
-                    ImVec2(main_window_width_default_, local_window_height_),
-                    ImGuiChildFlags_Border,
-                    ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
-                        ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar |
-                        ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::PushStyleColor(ImGuiCol_Border, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::BeginChild(
+      "DeskWindow",
+      ImVec2(local_remote_window_width, local_remote_window_height),
+      ImGuiChildFlags_Borders,
+      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+          ImGuiWindowFlags_NoBringToFrontOnFocus);
  ImGui::PopStyleVar();
-  ImGui::PopStyleColor();
+  ImGui::PopStyleColor(2);

  LocalWindow();

  ImDrawList* draw_list = ImGui::GetWindowDrawList();
-  draw_list->AddLine(
-      ImVec2(main_window_width_default_ / 2, title_bar_height_ + 15.0f),
-      ImVec2(main_window_width_default_ / 2, title_bar_height_ + 225.0f),
-      IM_COL32(0, 0, 0, 122), 1.0f);
+  draw_list->AddLine(ImVec2(io.DisplaySize.x * 0.5f, io.DisplaySize.y * 0.1f),
+                     ImVec2(io.DisplaySize.x * 0.5f, io.DisplaySize.y * 0.53f),
+                     IM_COL32(0, 0, 0, 122), 1.0f);

  RemoteWindow();
  ImGui::EndChild();
@@ -32,6 +39,7 @@ int Render::MainWindow() {
  StatusBar();

  if (show_connection_status_window_) {
+    // std::unique_lock lock(client_properties_mutex_);
    for (auto it = client_properties_.begin();
         it != client_properties_.end();) {
      auto& props = it->second;
@@ -49,4 +57,4 @@ int Render::MainWindow() {

  return 0;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/gui/windows/request_permission_window.mm
+++ b/src/gui/windows/request_permission_window.mm
@@ -0,0 +1,205 @@
+#include "layout.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+#include <ApplicationServices/ApplicationServices.h>
+#include <CoreGraphics/CoreGraphics.h>
+#import <Foundation/Foundation.h>
+#include <unistd.h>
+#include <cstdlib>
+
+namespace crossdesk {
+
+bool Render::DrawToggleSwitch(const char* id, bool active, bool enabled) {
+  const float TRACK_HEIGHT = ImGui::GetFrameHeight();
+  const float TRACK_WIDTH = TRACK_HEIGHT * 1.8f;
+  const float TRACK_RADIUS = TRACK_HEIGHT * 0.5f;
+  const float KNOB_PADDING = 2.0f;
+  const float KNOB_HEIGHT = TRACK_HEIGHT - 4.0f;
+  const float KNOB_WIDTH = KNOB_HEIGHT * 1.2f;
+  const float KNOB_RADIUS = KNOB_HEIGHT * 0.5f;
+  const float DISABLED_ALPHA = 0.6f;
+  const float KNOB_ALPHA_DISABLED = 0.9f;
+
+  const ImVec4 COLOR_ACTIVE = ImVec4(0.0f, 0.0f, 1.0f, 1.0f);
+  const ImVec4 COLOR_ACTIVE_HOVER = ImVec4(0.26f, 0.59f, 0.98f, 1.0f);
+  const ImVec4 COLOR_INACTIVE = ImVec4(0.60f, 0.60f, 0.60f, 1.0f);
+  const ImVec4 COLOR_INACTIVE_HOVER = ImVec4(0.70f, 0.70f, 0.70f, 1.0f);
+  const ImVec4 COLOR_KNOB = ImVec4(1.0f, 1.0f, 1.0f, 1.0f);
+
+  ImDrawList* draw_list = ImGui::GetWindowDrawList();
+  ImVec2 track_pos = ImGui::GetCursorScreenPos();
+
+  ImGui::InvisibleButton(id, ImVec2(TRACK_WIDTH, TRACK_HEIGHT));
+  bool hovered = ImGui::IsItemHovered();
+  bool clicked = ImGui::IsItemClicked() && enabled;
+
+  ImVec4 track_color = active ? (hovered && enabled ? COLOR_ACTIVE_HOVER : COLOR_ACTIVE)
+                              : (hovered && enabled ? COLOR_INACTIVE_HOVER : COLOR_INACTIVE);
+
+  if (!enabled) {
+    track_color.w *= DISABLED_ALPHA;
+  }
+
+  ImVec2 track_min = ImVec2(track_pos.x, track_pos.y + 0.5f);
+  ImVec2 track_max = ImVec2(track_pos.x + TRACK_WIDTH, track_pos.y + TRACK_HEIGHT - 0.5f);
+  draw_list->AddRectFilled(track_min, track_max, ImGui::GetColorU32(track_color), TRACK_RADIUS);
+
+  float knob_position = active ? 1.0f : 0.0f;
+  float knob_min_x = track_pos.x + KNOB_PADDING;
+  float knob_max_x = track_pos.x + TRACK_WIDTH - KNOB_WIDTH - KNOB_PADDING;
+  float knob_x = knob_min_x + knob_position * (knob_max_x - knob_min_x);
+  float knob_y = track_pos.y + (TRACK_HEIGHT - KNOB_HEIGHT) * 0.5f;
+
+  ImVec4 knob_color = COLOR_KNOB;
+  if (!enabled) {
+    knob_color.w = KNOB_ALPHA_DISABLED;
+  }
+
+  ImVec2 knob_min = ImVec2(knob_x, knob_y);
+  ImVec2 knob_max = ImVec2(knob_x + KNOB_WIDTH, knob_y + KNOB_HEIGHT);
+  draw_list->AddRectFilled(knob_min, knob_max, ImGui::GetColorU32(knob_color), KNOB_RADIUS);
+
+  return clicked;
+}
+
+bool Render::CheckScreenRecordingPermission() {
+  // CGPreflightScreenCaptureAccess is available on macOS 10.15+
+  if (@available(macOS 10.15, *)) {
+    bool granted = CGPreflightScreenCaptureAccess();
+    return granted;
+  }
+  // for older macOS versions, assume permission is granted
+  return true;
+}
+
+bool Render::CheckAccessibilityPermission() {
+  NSDictionary* options = @{(__bridge id)kAXTrustedCheckOptionPrompt : @NO};
+  bool trusted = AXIsProcessTrustedWithOptions((__bridge CFDictionaryRef)options);
+  return trusted;
+}
+
+void Render::OpenAccessibilityPreferences() {
+  NSDictionary* options = @{(__bridge id)kAXTrustedCheckOptionPrompt : @YES};
+  AXIsProcessTrustedWithOptions((__bridge CFDictionaryRef)options);
+
+  system("open "
+         "\"x-apple.systempreferences:com.apple.preference.security?Privacy_"
+         "Accessibility\"");
+}
+
+void Render::OpenScreenRecordingPreferences() {
+  if (@available(macOS 10.15, *)) {
+    CGRequestScreenCaptureAccess();
+  }
+
+  system("open "
+         "\"x-apple.systempreferences:com.apple.preference.security?Privacy_"
+         "ScreenCapture\"");
+}
+
+int Render::RequestPermissionWindow() {
+  bool screen_recording_granted = CheckScreenRecordingPermission();
+  bool accessibility_granted = CheckAccessibilityPermission();
+
+  show_request_permission_window_ = !screen_recording_granted || !accessibility_granted;
+
+  if (!show_request_permission_window_) {
+    return 0;
+  }
+
+  const ImGuiViewport* viewport = ImGui::GetMainViewport();
+  float window_width = localization_language_index_ == 0 ? REQUEST_PERMISSION_WINDOW_WIDTH_CN
+                                                         : REQUEST_PERMISSION_WINDOW_WIDTH_EN;
+  float window_height = localization_language_index_ == 0 ? REQUEST_PERMISSION_WINDOW_HEIGHT_CN
+                                                          : REQUEST_PERMISSION_WINDOW_HEIGHT_EN;
+
+  float checkbox_padding = localization_language_index_ == 0
+                               ? REQUEST_PERMISSION_WINDOW_CHECKBOX_PADDING_CN
+                               : REQUEST_PERMISSION_WINDOW_CHECKBOX_PADDING_EN;
+
+  ImVec2 center_pos = ImVec2((viewport->WorkSize.x - window_width) * 0.5f + viewport->WorkPos.x,
+                             (viewport->WorkSize.y - window_height) * 0.5f + viewport->WorkPos.y);
+  ImGui::SetNextWindowPos(center_pos, ImGuiCond_Once);
+
+  ImGui::SetNextWindowSize(ImVec2(window_width, window_height), ImGuiCond_Always);
+
+  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
+
+  ImGui::Begin(
+      localization::request_permissions[localization_language_index_].c_str(), nullptr,
+      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoSavedSettings);
+
+  ImGui::SetWindowFontScale(0.3f);
+
+  // use system font
+  if (main_windows_system_chinese_font_ != nullptr) {
+    ImGui::PushFont(main_windows_system_chinese_font_);
+  }
+
+  ImGui::SetCursorPosY(ImGui::GetCursorPosY() + ImGui::GetTextLineHeight() + 5.0f);
+  ImGui::SetCursorPosX(10.0f);
+  ImGui::TextWrapped(
+      "%s", localization::permission_required_message[localization_language_index_].c_str());
+
+  ImGui::Spacing();
+  ImGui::Spacing();
+  ImGui::Spacing();
+
+  // accessibility permission
+  ImGui::SetCursorPosX(10.0f);
+  ImGui::AlignTextToFramePadding();
+  ImGui::Text("1. %s:",
+              localization::accessibility_permission[localization_language_index_].c_str());
+  ImGui::SameLine();
+  ImGui::AlignTextToFramePadding();
+  ImGui::SetCursorPosX(checkbox_padding);
+  if (accessibility_granted) {
+    DrawToggleSwitch("accessibility_toggle_on", true, false);
+  } else {
+    if (DrawToggleSwitch("accessibility_toggle", accessibility_granted, !accessibility_granted)) {
+      OpenAccessibilityPreferences();
+    }
+  }
+
+  ImGui::Spacing();
+
+  // screen recording permission
+  ImGui::SetCursorPosX(10.0f);
+  ImGui::AlignTextToFramePadding();
+  ImGui::Text("2. %s:",
+              localization::screen_recording_permission[localization_language_index_].c_str());
+  ImGui::SameLine();
+  ImGui::AlignTextToFramePadding();
+  ImGui::SetCursorPosX(checkbox_padding);
+  if (screen_recording_granted) {
+    ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 10.0f);
+    DrawToggleSwitch("screen_recording_toggle_on", true, false);
+  } else {
+    if (DrawToggleSwitch("screen_recording_toggle", screen_recording_granted,
+                         !screen_recording_granted)) {
+      OpenScreenRecordingPreferences();
+    }
+  }
+
+  ImGui::SetWindowFontScale(1.0f);
+  ImGui::SetWindowFontScale(0.45f);
+
+  // pop system font
+  if (main_windows_system_chinese_font_ != nullptr) {
+    ImGui::PopFont();
+  }
+
+  ImGui::End();
+  ImGui::SetWindowFontScale(1.0f);
+  ImGui::PopStyleVar(4);
+  ImGui::PopStyleColor();
+
+  return 0;
+}
+}  // namespace crossdesk
--- a/src/gui/windows/server_settings_window.cpp
+++ b/src/gui/windows/server_settings_window.cpp
@@ -28,125 +28,20 @@ std::vector<std::string> GetRootEntries() {
  return roots;
 }

-int Render::ShowSimpleFileBrowser() {
-  std::string display_text;
-
-  if (selected_current_file_path_.empty()) {
-    selected_current_file_path_ = std::filesystem::current_path().string();
-  }
-
-  if (!tls_cert_path_self_.empty()) {
-    display_text =
-        std::filesystem::path(tls_cert_path_self_).filename().string();
-  } else if (selected_current_file_path_ != "Root") {
-    display_text =
-        std::filesystem::path(selected_current_file_path_).filename().string();
-    if (display_text.empty()) {
-      display_text = selected_current_file_path_;
-    }
-  }
-
-  if (display_text.empty()) {
-    display_text =
-        localization::select_a_file[localization_language_index_].c_str();
-  }
-
-  if (show_file_browser_) {
-    ImGui::PushItemFlag(ImGuiItemFlags_AutoClosePopups, false);
-
-    float fixed_width = 130.0f;
-    ImGui::SetNextItemWidth(fixed_width);
-    ImGui::SetNextWindowSizeConstraints(ImVec2(fixed_width, 0),
-                                        ImVec2(fixed_width, 100.0f));
-
-    if (ImGui::BeginCombo("##select_a_file", display_text.c_str(), 0)) {
-      bool file_selected = false;
-
-      auto roots = GetRootEntries();
-      if (selected_current_file_path_ == "Root" ||
-          !std::filesystem::exists(selected_current_file_path_) ||
-          !std::filesystem::is_directory(selected_current_file_path_)) {
-        for (const auto& root : roots) {
-          if (ImGui::Selectable(root.c_str())) {
-            selected_current_file_path_ = root;
-            tls_cert_path_self_.clear();
-          }
-        }
-      } else {
-        std::filesystem::path p(selected_current_file_path_);
-
-        if (ImGui::Selectable("..")) {
-          if (std::find(roots.begin(), roots.end(),
-                        selected_current_file_path_) != roots.end()) {
-            selected_current_file_path_ = "Root";
-          } else if (p.has_parent_path()) {
-            selected_current_file_path_ = p.parent_path().string();
-          } else {
-            selected_current_file_path_ = "Root";
-          }
-          tls_cert_path_self_.clear();
-        }
-
-        try {
-          for (const auto& entry : std::filesystem::directory_iterator(
-                   selected_current_file_path_)) {
-            std::string name = entry.path().filename().string();
-            if (entry.is_directory()) {
-              if (ImGui::Selectable(name.c_str())) {
-                selected_current_file_path_ = entry.path().string();
-                tls_cert_path_self_.clear();
-              }
-            } else {
-              if (ImGui::Selectable(name.c_str())) {
-                tls_cert_path_self_ = entry.path().string();
-                file_selected = true;
-                show_file_browser_ = false;
-              }
-            }
-          }
-        } catch (const std::exception& e) {
-          ImGui::TextColored(ImVec4(1, 0, 0, 1), "Error: %s", e.what());
-        }
-      }
-
-      ImGui::EndCombo();
-    }
-    ImGui::PopItemFlag();
-  } else {
-    show_file_browser_ = true;
-  }
-
-  return 0;
-}
-
 int Render::SelfHostedServerWindow() {
+  ImGuiIO& io = ImGui::GetIO();
  if (show_self_hosted_server_config_window_) {
    if (self_hosted_server_config_window_pos_reset_) {
-      const ImGuiViewport* viewport = ImGui::GetMainViewport();
      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
        ImGui::SetNextWindowPos(
-            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                    SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_CN) /
-                       2,
-                   (viewport->WorkSize.y - viewport->WorkPos.y -
-                    SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_CN) /
-                       2));
-
+            ImVec2(io.DisplaySize.x * 0.298f, io.DisplaySize.y * 0.25f));
        ImGui::SetNextWindowSize(
-            ImVec2(SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_CN,
-                   SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_CN));
+            ImVec2(io.DisplaySize.x * 0.407f, io.DisplaySize.y * 0.35f));
      } else {
        ImGui::SetNextWindowPos(
-            ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
-                    SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_EN) /
-                       2,
-                   (viewport->WorkSize.y - viewport->WorkPos.y -
-                    SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_EN) /
-                       2));
-
+            ImVec2(io.DisplaySize.x * 0.27f, io.DisplaySize.y * 0.3f));
        ImGui::SetNextWindowSize(
-            ImVec2(SELF_HOSTED_SERVER_CONFIG_WINDOW_WIDTH_EN,
-                   SELF_HOSTED_SERVER_CONFIG_WINDOW_HEIGHT_EN));
+            ImVec2(io.DisplaySize.x * 0.465f, io.DisplaySize.y * 0.35f));
      }

      self_hosted_server_config_window_pos_reset_ = false;
@@ -154,13 +49,10 @@ int Render::SelfHostedServerWindow() {

    // Settings
    {
-      static int settings_items_padding = 30;
-      int settings_items_offset = 0;
-
      ImGui::SetWindowFontScale(0.5f);
      ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
-      ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 5.0f);
-      ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 3.0f);
+      ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+      ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);

      ImGui::Begin(localization::self_hosted_server_settings
                       [localization_language_index_]
@@ -172,18 +64,17 @@ int Render::SelfHostedServerWindow() {
      ImGui::SetWindowFontScale(0.5f);
      ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
      {
-        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 2);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text("%s", localization::self_hosted_server_address
                              [localization_language_index_]
                                  .c_str());
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 2.5f);
        } else {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_HOST_INPUT_BOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.43f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH);
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 3.8f);

        ImGui::InputText("##signal_server_ip_self_", signal_server_ip_self_,
                         IM_ARRAYSIZE(signal_server_ip_self_),
@@ -193,20 +84,18 @@ int Render::SelfHostedServerWindow() {
      ImGui::Separator();

      {
-        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 2);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text(
            "%s",
            localization::self_hosted_server_port[localization_language_index_]
                .c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 2.5f);
        } else {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.43f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH);
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 3.8f);

        ImGui::InputText("##signal_server_port_self_", signal_server_port_self_,
                         IM_ARRAYSIZE(signal_server_port_self_));
@@ -215,56 +104,34 @@ int Render::SelfHostedServerWindow() {
      ImGui::Separator();

      {
-        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 2);
+        ImGui::AlignTextToFramePadding();
        ImGui::Text("%s", localization::self_hosted_server_coturn_server_port
                              [localization_language_index_]
                                  .c_str());
-
+        ImGui::SameLine();
        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_CN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 2.5f);
        } else {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_EN);
+          ImGui::SetCursorPosX(title_bar_button_width_ * 3.43f);
        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH);
+        ImGui::SetNextItemWidth(title_bar_button_width_ * 3.8f);

        ImGui::InputText("##coturn_server_port_self_", coturn_server_port_self_,
                         IM_ARRAYSIZE(coturn_server_port_self_));
      }

-      ImGui::Separator();
-
-      {
-        settings_items_offset += settings_items_padding;
-        ImGui::SetCursorPosY(settings_items_offset + 2);
-        ImGui::Text("%s", localization::self_hosted_server_certificate_path
-                              [localization_language_index_]
-                                  .c_str());
-
-        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_CN);
-        } else {
-          ImGui::SetCursorPosX(SELF_HOSTED_SERVER_PORT_INPUT_BOX_PADDING_EN);
-        }
-        ImGui::SetCursorPosY(settings_items_offset);
-        ImGui::SetNextItemWidth(SELF_HOSTED_SERVER_INPUT_WINDOW_WIDTH);
-
-        ShowSimpleFileBrowser();
-      }
-
      if (stream_window_inited_) {
        ImGui::EndDisabled();
      }

+      ImGui::Dummy(ImVec2(0.0f, title_bar_button_width_ * 0.25f));
+
      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
-        ImGui::SetCursorPosX(SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_CN);
+        ImGui::SetCursorPosX(title_bar_button_width_ * 2.32f);
      } else {
-        ImGui::SetCursorPosX(SELF_HOSTED_SERVER_CONFIG_OK_BUTTON_PADDING_EN);
+        ImGui::SetCursorPosX(title_bar_button_width_ * 2.7f);
      }

-      settings_items_offset += settings_items_padding + 10;
-      ImGui::SetCursorPosY(settings_items_offset);
      ImGui::PopStyleVar();

      // OK
@@ -275,7 +142,6 @@ int Render::SelfHostedServerWindow() {
        config_center_->SetServerHost(signal_server_ip_self_);
        config_center_->SetServerPort(atoi(signal_server_port_self_));
        config_center_->SetCoturnServerPort(atoi(coturn_server_port_self_));
-        config_center_->SetCertFilePath(tls_cert_path_self_);
        strncpy(signal_server_ip_, signal_server_ip_self_,
                sizeof(signal_server_ip_) - 1);
        signal_server_ip_[sizeof(signal_server_ip_) - 1] = '\0';
@@ -285,9 +151,6 @@ int Render::SelfHostedServerWindow() {
        strncpy(coturn_server_port_, coturn_server_port_self_,
                sizeof(coturn_server_port_) - 1);
        coturn_server_port_[sizeof(coturn_server_port_) - 1] = '\0';
-        strncpy(cert_file_path_, tls_cert_path_self_.c_str(),
-                sizeof(cert_file_path_) - 1);
-        cert_file_path_[sizeof(cert_file_path_) - 1] = '\0';

        self_hosted_server_config_window_pos_reset_ = true;
      }
@@ -298,16 +161,26 @@ int Render::SelfHostedServerWindow() {
              localization::cancel[localization_language_index_].c_str())) {
        show_self_hosted_server_config_window_ = false;
        self_hosted_server_config_window_pos_reset_ = true;
-
-        strncpy(signal_server_ip_self_, signal_server_ip_,
+        strncpy(signal_server_ip_self_,
+                config_center_->GetSignalServerHost().c_str(),
                sizeof(signal_server_ip_self_) - 1);
        signal_server_ip_self_[sizeof(signal_server_ip_self_) - 1] = '\0';
-        strncpy(signal_server_port_self_, signal_server_port_,
-                sizeof(signal_server_port_self_) - 1);
-        signal_server_port_self_[sizeof(signal_server_port_self_) - 1] = '\0';
-        config_center_->SetServerHost(signal_server_ip_self_);
-        config_center_->SetServerPort(atoi(signal_server_port_self_));
-        tls_cert_path_self_.clear();
+        int signal_port = config_center_->GetSignalServerPort();
+        if (signal_port > 0) {
+          strncpy(signal_server_port_self_, std::to_string(signal_port).c_str(),
+                  sizeof(signal_server_port_self_) - 1);
+          signal_server_port_self_[sizeof(signal_server_port_self_) - 1] = '\0';
+        } else {
+          signal_server_port_self_[0] = '\0';
+        }
+        int coturn_port = config_center_->GetCoturnServerPort();
+        if (coturn_port > 0) {
+          strncpy(coturn_server_port_self_, std::to_string(coturn_port).c_str(),
+                  sizeof(coturn_server_port_self_) - 1);
+          coturn_server_port_self_[sizeof(coturn_server_port_self_) - 1] = '\0';
+        } else {
+          coturn_server_port_self_[0] = '\0';
+        }
      }

      ImGui::SetWindowFontScale(1.0f);
--- a/src/gui/windows/server_window.cpp
+++ b/src/gui/windows/server_window.cpp
@@ -0,0 +1,379 @@
+#include <algorithm>
+#include <cmath>
+#include <cstdio>
+#include <string>
+#include <vector>
+
+#include "layout_relative.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+#include "rounded_corner_button.h"
+
+namespace crossdesk {
+
+namespace {
+int CountDigits(int number) {
+  if (number == 0) return 1;
+  return (int)std::floor(std::log10(std::abs(number))) + 1;
+}
+
+void BitrateDisplay(uint32_t bitrate) {
+  const int num_of_digits = CountDigits(static_cast<int>(bitrate));
+  if (num_of_digits <= 3) {
+    ImGui::Text("%u bps", bitrate);
+  } else if (num_of_digits > 3 && num_of_digits <= 6) {
+    ImGui::Text("%u kbps", bitrate / 1000);
+  } else {
+    ImGui::Text("%.1f mbps", bitrate / 1000000.0f);
+  }
+}
+
+std::string FormatBytes(uint64_t bytes) {
+  char buf[64];
+  if (bytes < 1024ULL) {
+    std::snprintf(buf, sizeof(buf), "%llu B", (unsigned long long)bytes);
+  } else if (bytes < 1024ULL * 1024ULL) {
+    std::snprintf(buf, sizeof(buf), "%.2f KB", bytes / 1024.0);
+  } else if (bytes < 1024ULL * 1024ULL * 1024ULL) {
+    std::snprintf(buf, sizeof(buf), "%.2f MB", bytes / (1024.0 * 1024.0));
+  } else {
+    std::snprintf(buf, sizeof(buf), "%.2f GB",
+                  bytes / (1024.0 * 1024.0 * 1024.0));
+  }
+  return std::string(buf);
+}
+}  // namespace
+
+int Render::ServerWindow() {
+  ImGui::SetNextWindowSize(ImVec2(server_window_width_, server_window_height_),
+                           ImGuiCond_Always);
+  ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+  ImGui::Begin("##server_window", nullptr,
+               ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
+                   ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse |
+                   ImGuiWindowFlags_NoScrollbar |
+                   ImGuiWindowFlags_NoScrollWithMouse);
+  ImGui::PopStyleVar();
+
+  server_window_title_bar_height_ = title_bar_height_;
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 0.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+  ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
+  ImGui::BeginChild(
+      "ServerTitleBar",
+      ImVec2(server_window_width_, server_window_title_bar_height_),
+      ImGuiChildFlags_Borders,
+      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+          ImGuiWindowFlags_NoBringToFrontOnFocus);
+
+  float server_title_bar_button_width = server_window_title_bar_height_;
+  float server_title_bar_button_height = server_window_title_bar_height_;
+
+  // Collapse/expand toggle button (FontAwesome icon).
+  {
+    ImGui::SetCursorPos(ImVec2(0.0f, 0.0f));
+
+    ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
+    ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0, 0, 0, 0.1f));
+    ImGui::PushStyleColor(ImGuiCol_ButtonActive,
+                          ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+
+    ImGui::SetWindowFontScale(0.5f);
+    const char* icon =
+        server_window_collapsed_ ? ICON_FA_ANGLE_DOWN : ICON_FA_ANGLE_UP;
+    std::string toggle_label = std::string(icon) + "##server_toggle";
+
+    bool toggle_clicked = RoundedCornerButton(
+        toggle_label.c_str(),
+        ImVec2(server_title_bar_button_width, server_title_bar_button_height),
+        8.5f, ImDrawFlags_RoundCornersTopLeft, true, IM_COL32(0, 0, 0, 0),
+        IM_COL32(0, 0, 0, 25), IM_COL32(255, 255, 255, 255));
+    if (toggle_clicked) {
+      if (server_window_) {
+        int w = 0;
+        int h = 0;
+        int x = 0;
+        int y = 0;
+        SDL_GetWindowSize(server_window_, &w, &h);
+        SDL_GetWindowPosition(server_window_, &x, &y);
+
+        if (server_window_collapsed_) {
+          const int normal_h = server_window_normal_height_;
+          SDL_SetWindowSize(server_window_, w, normal_h);
+          SDL_SetWindowPosition(server_window_, x, y);
+          server_window_collapsed_ = false;
+        } else {
+          const int collapsed_h = (int)server_window_title_bar_height_;
+          // Collapse upward: keep top edge stable.
+          SDL_SetWindowSize(server_window_, w, collapsed_h);
+          SDL_SetWindowPosition(server_window_, x, y);
+          server_window_collapsed_ = true;
+        }
+      }
+    }
+    ImGui::SetWindowFontScale(1.0f);
+
+    ImGui::PopStyleColor(3);
+  }
+
+  ImGui::EndChild();
+  ImGui::PopStyleVar(2);
+  ImGui::PopStyleColor();
+
+  RemoteClientInfoWindow();
+
+  ImGui::End();
+  return 0;
+}
+
+int Render::RemoteClientInfoWindow() {
+  float remote_client_info_window_width = server_window_width_ * 0.8f;
+  float remote_client_info_window_height =
+      (server_window_height_ - server_window_title_bar_height_) * 0.9f;
+
+  ImGui::PushStyleColor(ImGuiCol_ChildBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_ChildRounding, 5.0f);
+  ImGui::BeginChild(
+      "RemoteClientInfoWindow",
+      ImVec2(remote_client_info_window_width, remote_client_info_window_height),
+      ImGuiChildFlags_Borders,
+      ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove |
+          ImGuiWindowFlags_NoBringToFrontOnFocus);
+  ImGui::PopStyleVar();
+  ImGui::PopStyleColor();
+
+  float font_scale = localization_language_index_ == 0 ? 0.5f : 0.45f;
+
+  std::vector<std::pair<std::string, std::string>> remote_entries;
+  remote_entries.reserve(connection_status_.size());
+  for (const auto& kv : connection_status_) {
+    const auto host_it = connection_host_names_.find(kv.first);
+    const std::string display_name =
+        (host_it != connection_host_names_.end() && !host_it->second.empty())
+            ? host_it->second
+            : kv.first;
+    remote_entries.emplace_back(kv.first, display_name);
+  }
+
+  auto find_display_name_by_remote_id =
+      [&remote_entries](const std::string& remote_id) -> std::string {
+    for (const auto& entry : remote_entries) {
+      if (entry.first == remote_id) {
+        return entry.second;
+      }
+    }
+    return {};
+  };
+
+  if (!selected_server_remote_id_.empty() &&
+      find_display_name_by_remote_id(selected_server_remote_id_).empty()) {
+    selected_server_remote_id_.clear();
+    selected_server_remote_hostname_.clear();
+  }
+  if (selected_server_remote_id_.empty() && !remote_entries.empty()) {
+    selected_server_remote_id_ = remote_entries.front().first;
+  }
+  if (!selected_server_remote_id_.empty()) {
+    selected_server_remote_hostname_ =
+        find_display_name_by_remote_id(selected_server_remote_id_);
+  }
+
+  ImGui::SetWindowFontScale(font_scale);
+  ImGui::AlignTextToFramePadding();
+  ImGui::Text("%s",
+              localization::controller[localization_language_index_].c_str());
+  ImGui::SameLine();
+
+  const char* selected_preview = "-";
+  if (!selected_server_remote_hostname_.empty()) {
+    selected_preview = selected_server_remote_hostname_.c_str();
+  } else if (!remote_client_id_.empty()) {
+    selected_preview = remote_client_id_.c_str();
+  }
+
+  ImGui::SetNextItemWidth(remote_client_info_window_width *
+                          (localization_language_index_ == 0 ? 0.68f : 0.62f));
+  ImGui::SetWindowFontScale(localization_language_index_ == 0 ? 0.45f : 0.4f);
+  ImGui::AlignTextToFramePadding();
+  if (ImGui::BeginCombo("##server_remote_id", selected_preview)) {
+    ImGui::SetWindowFontScale(localization_language_index_ == 0 ? 0.45f : 0.4f);
+    for (int i = 0; i < static_cast<int>(remote_entries.size()); i++) {
+      const bool selected =
+          (remote_entries[i].first == selected_server_remote_id_);
+      if (ImGui::Selectable(remote_entries[i].second.c_str(), selected)) {
+        selected_server_remote_id_ = remote_entries[i].first;
+        selected_server_remote_hostname_ = remote_entries[i].second;
+      }
+      if (selected) {
+        ImGui::SetItemDefaultFocus();
+      }
+    }
+    ImGui::EndCombo();
+  }
+
+  ImGui::Separator();
+
+  ImGui::SetWindowFontScale(font_scale);
+
+  if (!selected_server_remote_id_.empty()) {
+    auto it = connection_status_.find(selected_server_remote_id_);
+    const ConnectionStatus status = (it == connection_status_.end())
+                                        ? ConnectionStatus::Closed
+                                        : it->second;
+
+    ImGui::Text(
+        "%s",
+        localization::connection_status[localization_language_index_].c_str());
+    ImGui::SameLine();
+
+    switch (status) {
+      case ConnectionStatus::Connected:
+        ImGui::Text(
+            "%s",
+            localization::p2p_connected[localization_language_index_].c_str());
+        break;
+      case ConnectionStatus::Connecting:
+        ImGui::Text(
+            "%s",
+            localization::p2p_connecting[localization_language_index_].c_str());
+        break;
+      case ConnectionStatus::Disconnected:
+        ImGui::Text("%s",
+                    localization::p2p_disconnected[localization_language_index_]
+                        .c_str());
+        break;
+      case ConnectionStatus::Failed:
+        ImGui::Text(
+            "%s",
+            localization::p2p_failed[localization_language_index_].c_str());
+        break;
+      case ConnectionStatus::Closed:
+        ImGui::Text(
+            "%s",
+            localization::p2p_closed[localization_language_index_].c_str());
+        break;
+      default:
+        ImGui::Text(
+            "%s",
+            localization::p2p_failed[localization_language_index_].c_str());
+        break;
+    }
+  }
+
+  ImGui::Separator();
+
+  ImGui::AlignTextToFramePadding();
+  ImGui::Text(
+      "%s", localization::file_transfer[localization_language_index_].c_str());
+
+  ImGui::SameLine();
+
+  if (ImGui::Button(
+          localization::select_file[localization_language_index_].c_str())) {
+    std::string title = localization::select_file[localization_language_index_];
+    std::string path = OpenFileDialog(title);
+    LOG_INFO("Selected file path: {}", path.c_str());
+
+    ProcessSelectedFile(path, nullptr, file_label_, selected_server_remote_id_);
+  }
+
+  if (file_transfer_.file_transfer_window_visible_) {
+    ImGui::SameLine();
+    const bool is_sending = file_transfer_.file_sending_.load();
+
+    if (is_sending) {
+      // Simple animation: cycle icon every 0.5s while sending.
+      static const char* kFileTransferIcons[] = {ICON_FA_ANGLE_UP,
+                                                 ICON_FA_ANGLES_UP};
+      const int icon_index = static_cast<int>(ImGui::GetTime() / 0.5) %
+                             (static_cast<int>(sizeof(kFileTransferIcons) /
+                                               sizeof(kFileTransferIcons[0])));
+      ImGui::Text("%s", kFileTransferIcons[icon_index]);
+    } else {
+      // Completed.
+      ImGui::Text("%s", ICON_FA_CHECK);
+    }
+
+    if (ImGui::IsItemHovered()) {
+      const uint64_t sent_bytes = file_transfer_.file_sent_bytes_.load();
+      const uint64_t total_bytes = file_transfer_.file_total_bytes_.load();
+      const uint32_t rate_bps = file_transfer_.file_send_rate_bps_.load();
+
+      float progress = 0.0f;
+      if (total_bytes > 0) {
+        progress =
+            static_cast<float>(sent_bytes) / static_cast<float>(total_bytes);
+        progress = (std::max)(0.0f, (std::min)(1.0f, progress));
+      }
+
+      std::string current_file_name;
+      const uint32_t current_file_id = file_transfer_.current_file_id_.load();
+      if (current_file_id != 0) {
+        std::lock_guard<std::mutex> lock(
+            file_transfer_.file_transfer_list_mutex_);
+        for (const auto& info : file_transfer_.file_transfer_list_) {
+          if (info.file_id == current_file_id) {
+            current_file_name = info.file_name;
+            break;
+          }
+        }
+      }
+
+      ImGui::BeginTooltip();
+      if (server_windows_system_chinese_font_) {
+        ImGui::PushFont(server_windows_system_chinese_font_);
+      }
+      ImGui::SetWindowFontScale(0.5f);
+      if (!current_file_name.empty()) {
+        ImGui::Text("%s", current_file_name.c_str());
+      }
+      if (total_bytes > 0) {
+        const std::string sent_str = FormatBytes(sent_bytes);
+        const std::string total_str = FormatBytes(total_bytes);
+        ImGui::Text("%s / %s", sent_str.c_str(), total_str.c_str());
+      }
+
+      const float text_height = ImGui::GetTextLineHeight();
+      char overlay[32];
+      std::snprintf(overlay, sizeof(overlay), "%.1f%%", progress * 100.0f);
+      ImGui::ProgressBar(progress, ImVec2(180.0f, text_height), overlay);
+      BitrateDisplay(rate_bps);
+      ImGui::SetWindowFontScale(1.0f);
+      if (server_windows_system_chinese_font_) {
+        ImGui::PopFont();
+      }
+      ImGui::EndTooltip();
+    }
+  }
+
+  ImGui::SetWindowFontScale(1.0f);
+
+  ImGui::EndChild();
+
+  ImGui::SameLine();
+
+  float close_connection_button_width = server_window_width_ * 0.1f;
+  float close_connection_button_height = remote_client_info_window_height;
+
+  ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(1.0f, 0.0f, 0.0f, 1.0f));
+  ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(1.0f, 0.3f, 0.3f, 1.0f));
+  ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(1.0f, 0.5f, 0.5f, 1.0f));
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_);
+  ImGui::SetWindowFontScale(font_scale);
+  if (ImGui::Button(ICON_FA_XMARK, ImVec2(close_connection_button_width,
+                                          close_connection_button_height))) {
+    if (peer_ && !selected_server_remote_id_.empty()) {
+      LeaveConnection(peer_, selected_server_remote_id_.c_str());
+    }
+  }
+  ImGui::SetWindowFontScale(1.0f);
+  ImGui::PopStyleColor(3);
+  ImGui::PopStyleVar();
+
+  return 0;
+}
+}  // namespace crossdesk
--- a/src/gui/windows/stream_window.cpp
+++ b/src/gui/windows/stream_window.cpp
@@ -31,13 +31,44 @@ void Render::DrawConnectionStatusText(
  }
 }

+void Render::DrawReceivingScreenText(
+    std::shared_ptr<SubStreamWindowProperties>& props) {
+  if (!props->connection_established_ ||
+      props->connection_status_ != ConnectionStatus::Connected) {
+    return;
+  }
+
+  bool has_valid_frame = false;
+  {
+    std::lock_guard<std::mutex> lock(props->video_frame_mutex_);
+    has_valid_frame = props->stream_texture_ != nullptr &&
+                      props->video_width_ > 0 && props->video_height_ > 0 &&
+                      props->front_frame_ && !props->front_frame_->empty();
+  }
+
+  if (has_valid_frame) {
+    return;
+  }
+
+  const std::string& text =
+      localization::receiving_screen[localization_language_index_];
+  ImVec2 size = ImGui::GetWindowSize();
+  ImVec2 text_size = ImGui::CalcTextSize(text.c_str());
+  ImGui::SetCursorPos(
+      ImVec2((size.x - text_size.x) * 0.5f, (size.y - text_size.y) * 0.5f));
+  ImGui::TextColored(ImVec4(1.0f, 1.0f, 1.0f, 0.92f), "%s", text.c_str());
+}
+
 void Render::CloseTab(decltype(client_properties_)::iterator& it) {
-  CleanupPeer(it->second);
-  it = client_properties_.erase(it);
-  if (client_properties_.empty()) {
-    SDL_Event event;
-    event.type = SDL_EVENT_QUIT;
-    SDL_PushEvent(&event);
+  // std::unique_lock lock(client_properties_mutex_);
+  if (it != client_properties_.end()) {
+    CleanupPeer(it->second);
+    it = client_properties_.erase(it);
+    if (client_properties_.empty()) {
+      SDL_Event event;
+      event.type = SDL_EVENT_QUIT;
+      SDL_PushEvent(&event);
+    }
  }
 }

@@ -50,21 +81,28 @@ int Render::StreamWindow() {
  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
  ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0, 0, 0, 0));
  ImGui::PushStyleColor(ImGuiCol_Border, ImVec4(0, 0, 0, 0));
-  ImGui::Begin("VideoBg", nullptr,
-               ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoDecoration |
-                   ImGuiWindowFlags_NoBringToFrontOnFocus |
-                   ImGuiWindowFlags_NoDocking);
+  bool video_bg_opened = ImGui::Begin(
+      "VideoBg", nullptr,
+      ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoDecoration |
+          ImGuiWindowFlags_NoBringToFrontOnFocus | ImGuiWindowFlags_NoDocking);
  ImGui::PopStyleColor(2);
  ImGui::PopStyleVar();

+  if (!video_bg_opened) {
+    return 0;
+  }
+
  ImGuiWindowFlags stream_window_flag =
      ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoDecoration |
      ImGuiWindowFlags_NoBringToFrontOnFocus | ImGuiWindowFlags_NoMove;

  if (!fullscreen_button_pressed_) {
-    ImGui::SetNextWindowPos(ImVec2(20, 0), ImGuiCond_Always);
-    ImGui::SetNextWindowSize(ImVec2(0, 20), ImGuiCond_Always);
-    ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 8.0f));
+    ImGui::SetNextWindowPos(
+        ImVec2(title_bar_button_width_ * 0.8f, title_bar_button_width_ * 0.1f),
+        ImGuiCond_Always);
+    ImGui::SetNextWindowSize(ImVec2(0, title_bar_button_width_ * 0.8f),
+                             ImGuiCond_Always);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
    ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0, 0, 0, 0.0f));
    ImGui::Begin("TabBar", nullptr,
@@ -79,25 +117,37 @@ int Render::StreamWindow() {
                               ImGuiTabBarFlags_AutoSelectNewTabs)) {
      is_tab_bar_hovered_ = ImGui::IsWindowHovered();

+      // std::shared_lock lock(client_properties_mutex_);
      for (auto it = client_properties_.begin();
           it != client_properties_.end();) {
        auto& props = it->second;
        if (!props->tab_opened_) {
-          CloseTab(it);
+          std::string remote_id_to_close = props->remote_id_;
+          // lock.unlock();
+          {
+            // std::unique_lock unique_lock(client_properties_mutex_);
+            auto close_it = client_properties_.find(remote_id_to_close);
+            if (close_it != client_properties_.end()) {
+              CloseTab(close_it);
+            }
+          }
+          // lock.lock();
+          it = client_properties_.begin();
          continue;
        }

-        ImGui::SetWindowFontScale(0.6f);
        std::string tab_label =
            enable_srtp_
                ? std::string(ICON_FA_SHIELD_HALVED) + " " + props->remote_id_
                : props->remote_id_;
        if (ImGui::BeginTabItem(tab_label.c_str(), &props->tab_opened_)) {
          props->tab_selected_ = true;
-          ImGui::SetWindowFontScale(1.0f);
+          ImGui::SetWindowFontScale(0.6f);

          ImGui::SetNextWindowSize(
-              ImVec2(stream_window_width_, stream_window_height_),
+              ImVec2(stream_window_width_,
+                     stream_window_height_ -
+                         (fullscreen_button_pressed_ ? 0 : title_bar_height_)),
              ImGuiCond_Always);
          ImGui::SetNextWindowPos(
              ImVec2(0, fullscreen_button_pressed_ ? 0 : title_bar_height_),
@@ -119,15 +169,33 @@ int Render::StreamWindow() {

          ControlWindow(props);

+          // Show file transfer window if needed
+          FileTransferWindow(props);
+
+          DrawReceivingScreenText(props);
+
          focused_remote_id_ = props->remote_id_;

          if (!props->peer_) {
-            it = client_properties_.erase(it);
-            if (client_properties_.empty()) {
-              SDL_Event event;
-              event.type = SDL_EVENT_QUIT;
-              SDL_PushEvent(&event);
+            std::string remote_id_to_erase = props->remote_id_;
+            // lock.unlock();
+            {
+              // std::unique_lock unique_lock(client_properties_mutex_);
+              auto erase_it = client_properties_.find(remote_id_to_erase);
+              if (erase_it != client_properties_.end()) {
+                // Ensure we flush pending STREAM_REFRESH_EVENT events and
+                // clean up peer resources before erasing the entry, otherwise
+                // SDL events may still hold raw pointers to freed
+                // SubStreamWindowProperties (including video_frame_mutex_),
+                // leading to std::system_error when locking.
+                CloseTab(erase_it);
+              }
            }
+            // lock.lock();
+            ImGui::End();
+            ImGui::EndTabItem();
+            it = client_properties_.begin();
+            continue;
          } else {
            DrawConnectionStatusText(props);
            ++it;
@@ -137,7 +205,20 @@ int Render::StreamWindow() {
          ImGui::EndTabItem();
        } else {
          props->tab_selected_ = false;
-          ImGui::SetWindowFontScale(1.0f);
+          if (!props->tab_opened_) {
+            std::string remote_id_to_close = props->remote_id_;
+            // lock.unlock();
+            {
+              // std::unique_lock unique_lock(client_properties_mutex_);
+              auto close_it = client_properties_.find(remote_id_to_close);
+              if (close_it != client_properties_.end()) {
+                CloseTab(close_it);
+              }
+            }
+            // lock.lock();
+            it = client_properties_.begin();
+            continue;
+          }
          ++it;
        }
      }
@@ -147,17 +228,30 @@ int Render::StreamWindow() {

    ImGui::End();  // End TabBar
  } else {
+    // std::shared_lock lock(client_properties_mutex_);
    for (auto it = client_properties_.begin();
         it != client_properties_.end();) {
      auto& props = it->second;
      if (!props->tab_opened_) {
-        CloseTab(it);
+        std::string remote_id_to_close = props->remote_id_;
+        // lock.unlock();
+        {
+          // std::unique_lock unique_lock(client_properties_mutex_);
+          auto close_it = client_properties_.find(remote_id_to_close);
+          if (close_it != client_properties_.end()) {
+            CloseTab(close_it);
+          }
+        }
+        // lock.lock();
+        it = client_properties_.begin();
        continue;
      }

      if (props->tab_selected_) {
        ImGui::SetNextWindowSize(
-            ImVec2(stream_window_width_, stream_window_height_),
+            ImVec2(stream_window_width_,
+                   stream_window_height_ -
+                       (fullscreen_button_pressed_ ? 0 : title_bar_height_)),
            ImGuiCond_Always);
        ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
        ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
@@ -176,17 +270,29 @@ int Render::StreamWindow() {
        UpdateRenderRect();

        ControlWindow(props);
+
+        // Show file transfer window if needed
+        FileTransferWindow(props);
+
+        DrawReceivingScreenText(props);
+
        ImGui::End();

        if (!props->peer_) {
          fullscreen_button_pressed_ = false;
          SDL_SetWindowFullscreen(stream_window_, false);
-          it = client_properties_.erase(it);
-          if (client_properties_.empty()) {
-            SDL_Event event;
-            event.type = SDL_EVENT_QUIT;
-            SDL_PushEvent(&event);
+          std::string remote_id_to_erase = props->remote_id_;
+          // lock.unlock();
+          {
+            // std::unique_lock unique_lock(client_properties_mutex_);
+            auto erase_it = client_properties_.find(remote_id_to_erase);
+            if (erase_it != client_properties_.end()) {
+              CloseTab(erase_it);
+            }
          }
+          // lock.lock();
+          it = client_properties_.begin();
+          continue;
        } else {
          DrawConnectionStatusText(props);
          ++it;
--- a/src/gui/windows/update_notification_window.cpp
+++ b/src/gui/windows/update_notification_window.cpp
@@ -0,0 +1,207 @@
+#include <algorithm>
+#include <string>
+
+#include "layout.h"
+#include "localization.h"
+#include "rd_log.h"
+#include "render.h"
+
+namespace crossdesk {
+
+std::string CleanMarkdown(const std::string& markdown) {
+  std::string result = markdown;
+
+  // remove # title mark
+  size_t pos = 0;
+  while (pos < result.length()) {
+    if (result[pos] == '\n' || pos == 0) {
+      size_t line_start = (result[pos] == '\n') ? pos + 1 : pos;
+      if (line_start < result.length() && result[line_start] == '#') {
+        size_t hash_end = line_start;
+        while (hash_end < result.length() &&
+               (result[hash_end] == '#' || result[hash_end] == ' ')) {
+          hash_end++;
+        }
+
+        result.erase(line_start, hash_end - line_start);
+        pos = line_start;
+        continue;
+      }
+    }
+    pos++;
+  }
+
+  // remove ** bold mark
+  pos = 0;
+  while ((pos = result.find("**", pos)) != std::string::npos) {
+    result.erase(pos, 2);
+  }
+
+  // remove all spaces
+  result.erase(std::remove(result.begin(), result.end(), ' '), result.end());
+
+  // replace . with 、
+  pos = 0;
+  while ((pos = result.find('.', pos)) != std::string::npos) {
+    result.replace(pos, 1, "、");
+    pos += 1;  // Move to next position after the replacement
+  }
+
+  return result;
+}
+
+int Render::UpdateNotificationWindow() {
+  if (show_update_notification_window_ && update_available_) {
+    const ImGuiViewport* viewport = ImGui::GetMainViewport();
+
+    float update_notification_window_width = title_bar_button_width_ * 10.0f;
+    float update_notification_window_height = title_bar_button_width_ * 8.0f;
+
+    // #ifdef __APPLE__
+    //     float font_scale = 0.3f;
+    // #else
+    //     float font_scale = 0.5f;
+    // #endif
+
+    ImGui::SetNextWindowPos(ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                                    update_notification_window_width) /
+                                       2,
+                                   (viewport->WorkSize.y - viewport->WorkPos.y -
+                                    update_notification_window_height) /
+                                       2),
+                            ImGuiCond_FirstUseEver);
+
+    ImGui::SetNextWindowSize(ImVec2(update_notification_window_width,
+                                    update_notification_window_height));
+
+    ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(1.0f, 1.0f, 1.0f, 1.0f));
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 1.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, window_rounding_);
+    ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, window_rounding_ * 0.5f);
+    ImGui::Begin(
+        localization::notification[localization_language_index_].c_str(),
+        nullptr,
+        ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+            ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_NoTitleBar);
+
+    ImGui::SetCursorPosY(ImGui::GetCursorPosY() +
+                         update_notification_window_height * 0.05f);
+
+    // title: new version available
+    ImGui::SetCursorPosX(update_notification_window_width * 0.1f);
+    ImGui::SetWindowFontScale(0.55f);
+    std::string title =
+        localization::new_version_available[localization_language_index_] +
+        ": v" + latest_version_;
+    ImGui::Text("%s", title.c_str());
+    ImGui::SetWindowFontScale(0.1f);
+
+    ImGui::Spacing();
+
+    // website link
+    std::string download_text =
+        localization::access_website[localization_language_index_] +
+        "https://crossdesk.cn";
+    ImGui::SetWindowFontScale(0.5f);
+    ImGui::SetCursorPosX(update_notification_window_width * 0.1f);
+    Hyperlink(download_text, "https://crossdesk.cn",
+              update_notification_window_width);
+    ImGui::SetWindowFontScale(1.0f);
+
+    ImGui::Spacing();
+
+    float scrollable_height =
+        update_notification_window_height - UPDATE_NOTIFICATION_RESERVED_HEIGHT;
+
+    if (main_windows_system_chinese_font_ != nullptr) {
+      ImGui::PushFont(main_windows_system_chinese_font_);
+    }
+    // scrollable content area
+    ImGui::SetCursorPosX(update_notification_window_width * 0.05f);
+    ImGui::BeginChild(
+        "ScrollableContent",
+        ImVec2(update_notification_window_width * 0.9f, scrollable_height),
+        ImGuiChildFlags_Borders, ImGuiWindowFlags_None);
+    ImGui::SetWindowFontScale(0.5f);
+    // set text wrap position to current available width (accounts for
+    // scrollbar)
+    float wrap_pos = ImGui::GetContentRegionAvail().x;
+    ImGui::PushTextWrapPos(wrap_pos);
+
+    // release name
+    if (latest_version_info_.contains("releaseName") &&
+        latest_version_info_["releaseName"].is_string() &&
+        !latest_version_info_["releaseName"].empty()) {
+      ImGui::SetCursorPosX(update_notification_window_width * 0.05f);
+      std::string release_name =
+          latest_version_info_["releaseName"].get<std::string>();
+      ImGui::TextWrapped("%s", release_name.c_str());
+      ImGui::Spacing();
+    }
+
+    // release notes
+    if (!release_notes_.empty()) {
+      ImGui::SetCursorPosX(update_notification_window_width * 0.05f);
+      std::string cleaned_notes = CleanMarkdown(release_notes_);
+      ImGui::TextWrapped("%s", cleaned_notes.c_str());
+      ImGui::Spacing();
+    }
+
+    // release date
+    if (latest_version_info_.contains("releaseDate") &&
+        latest_version_info_["releaseDate"].is_string() &&
+        !latest_version_info_["releaseDate"].empty()) {
+      ImGui::SetCursorPosX(update_notification_window_width * 0.05f);
+      std::string date_label =
+          localization::release_date[localization_language_index_];
+      std::string release_date = latest_version_info_["releaseDate"];
+      std::string date_text = date_label + release_date;
+      ImGui::Text("%s", date_text.c_str());
+      ImGui::Spacing();
+    }
+
+    // pop text wrap position
+    ImGui::PopTextWrapPos();
+
+    ImGui::EndChild();
+
+    // pop system font
+    if (main_windows_system_chinese_font_ != nullptr) {
+      ImGui::PopFont();
+    }
+
+    ImGui::Spacing();
+
+    if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+      ImGui::SetCursorPosX(update_notification_window_width * 0.407f);
+    } else {
+      ImGui::SetCursorPosX(update_notification_window_width * 0.367f);
+    }
+
+    ImGui::SetWindowFontScale(0.5f);
+    // update button
+    if (ImGui::Button(
+            localization::update[localization_language_index_].c_str())) {
+      // open download page
+      std::string url = "https://crossdesk.cn";
+      OpenUrl(url);
+      show_update_notification_window_ = false;
+    }
+
+    ImGui::SameLine();
+
+    if (ImGui::Button(
+            localization::cancel[localization_language_index_].c_str())) {
+      show_update_notification_window_ = false;
+    }
+
+    ImGui::SetWindowFontScale(1.0f);
+
+    ImGui::End();
+    ImGui::PopStyleVar(3);
+    ImGui::PopStyleColor();
+  }
+  return 0;
+}
+
+}  // namespace crossdesk
--- a/src/log/rd_log.cpp
+++ b/src/log/rd_log.cpp
@@ -62,4 +62,4 @@ std::shared_ptr<spdlog::logger> get_logger() {

  return g_logger;
 }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/path_manager/path_manager.cpp
+++ b/src/path_manager/path_manager.cpp
@@ -36,21 +36,7 @@ std::filesystem::path PathManager::GetLogPath() {
 #elif __APPLE__
  return GetHome() + "/Library/Logs/" + app_name_;
 #else
-  return GetCachePath() / app_name_ / "logs";
-#endif
-}
-
-std::filesystem::path PathManager::GetCertPath() {
-#ifdef _WIN32
-  // %APPDATA%\AppName\Certs
-  return GetKnownFolder(FOLDERID_RoamingAppData) / app_name_ / "certs";
-#elif __APPLE__
-  // $HOME/Library/Application Support/AppName/certs
-  return GetHome() + "/Library/Application Support/" + app_name_ + "/certs";
-#else
-  // $XDG_CONFIG_HOME/AppName/certs
-  return GetEnvOrDefault("XDG_CONFIG_HOME", GetHome() + "/.config") /
-         app_name_ / "certs";
+  return GetCachePath() / "logs";
 #endif
 }

--- a/src/path_manager/path_manager.h
+++ b/src/path_manager/path_manager.h
@@ -26,8 +26,6 @@ class PathManager {

  std::filesystem::path GetLogPath();

-  std::filesystem::path GetCertPath();
-
  bool CreateDirectories(const std::filesystem::path& p);

 private:
--- a/src/screen_capturer/linux/screen_capturer_x11.cpp
+++ b/src/screen_capturer/linux/screen_capturer_x11.cpp
@@ -1,5 +1,10 @@
 #include "screen_capturer_x11.h"

+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/Xfixes.h>
+#include <X11/extensions/Xrandr.h>
+
 #include <chrono>
 #include <thread>

@@ -100,6 +105,7 @@ int ScreenCapturerX11::Destroy() {

 int ScreenCapturerX11::Start(bool show_cursor) {
  if (running_) return 0;
+  show_cursor_ = show_cursor;
  running_ = true;
  paused_ = false;
  thread_ = std::thread([this]() {
@@ -132,6 +138,10 @@ int ScreenCapturerX11::SwitchTo(int monitor_index) {
  return 0;
 }

+int ScreenCapturerX11::ResetToInitialMonitor() {
+  monitor_index_ = initial_monitor_index_;
+  return 0;
+}
 std::vector<DisplayInfo> ScreenCapturerX11::GetDisplayInfoList() {
  return display_info_list_;
 }
@@ -156,6 +166,20 @@ void ScreenCapturerX11::OnFrame() {
                            AllPlanes, ZPixmap);
  if (!image) return;

+  // if enable show cursor, draw cursor
+  if (show_cursor_) {
+    Window root_return, child_return;
+    int root_x, root_y, win_x, win_y;
+    unsigned int mask;
+    if (XQueryPointer(display_, root_, &root_return, &child_return, &root_x,
+                      &root_y, &win_x, &win_y, &mask)) {
+      if (root_x >= left_ && root_x < left_ + width_ && root_y >= top_ &&
+          root_y < top_ + height_) {
+        DrawCursor(image, root_x - left_, root_y - top_);
+      }
+    }
+  }
+
  bool needs_copy = image->bytes_per_line != width_ * 4;
  std::vector<uint8_t> argb_buf;
  uint8_t* src_argb = nullptr;
@@ -186,4 +210,82 @@ void ScreenCapturerX11::OnFrame() {

  XDestroyImage(image);
 }
+
+void ScreenCapturerX11::DrawCursor(XImage* image, int x, int y) {
+  if (!display_ || !image) {
+    return;
+  }
+
+  // check XFixes extension
+  int event_base, error_base;
+  if (!XFixesQueryExtension(display_, &event_base, &error_base)) {
+    return;
+  }
+
+  XFixesCursorImage* cursor_image = XFixesGetCursorImage(display_);
+  if (!cursor_image) {
+    return;
+  }
+
+  int cursor_width = cursor_image->width;
+  int cursor_height = cursor_image->height;
+
+  int draw_x = x - cursor_image->xhot;
+  int draw_y = y - cursor_image->yhot;
+
+  // draw cursor on image
+  for (int cy = 0; cy < cursor_height; ++cy) {
+    for (int cx = 0; cx < cursor_width; ++cx) {
+      int img_x = draw_x + cx;
+      int img_y = draw_y + cy;
+
+      if (img_x < 0 || img_x >= image->width || img_y < 0 ||
+          img_y >= image->height) {
+        continue;
+      }
+
+      unsigned long cursor_pixel = cursor_image->pixels[cy * cursor_width + cx];
+      unsigned char a = (cursor_pixel >> 24) & 0xFF;
+
+      // if alpha is 0, skip
+      if (a == 0) {
+        continue;
+      }
+
+      unsigned long img_pixel = XGetPixel(image, img_x, img_y);
+
+      unsigned char img_r = (img_pixel >> 16) & 0xFF;
+      unsigned char img_g = (img_pixel >> 8) & 0xFF;
+      unsigned char img_b = img_pixel & 0xFF;
+
+      unsigned char cursor_r = (cursor_pixel >> 16) & 0xFF;
+      unsigned char cursor_g = (cursor_pixel >> 8) & 0xFF;
+      unsigned char cursor_b = cursor_pixel & 0xFF;
+
+      // alpha mix
+      unsigned char final_r, final_g, final_b;
+      if (a == 255) {
+        // if alpha is 255, use cursor color
+        final_r = cursor_r;
+        final_g = cursor_g;
+        final_b = cursor_b;
+      } else {
+        float alpha = a / 255.0f;
+        float inv_alpha = 1.0f - alpha;
+        final_r =
+            static_cast<unsigned char>(cursor_r * alpha + img_r * inv_alpha);
+        final_g =
+            static_cast<unsigned char>(cursor_g * alpha + img_g * inv_alpha);
+        final_b =
+            static_cast<unsigned char>(cursor_b * alpha + img_b * inv_alpha);
+      }
+
+      // set pixel
+      unsigned long new_pixel = (final_r << 16) | (final_g << 8) | final_b;
+      XPutPixel(image, img_x, img_y, new_pixel);
+    }
+  }
+
+  XFree(cursor_image);
+}
 }  // namespace crossdesk
--- a/src/screen_capturer/linux/screen_capturer_x11.h
+++ b/src/screen_capturer/linux/screen_capturer_x11.h
@@ -7,10 +7,14 @@
 #ifndef _SCREEN_CAPTURER_X11_H_
 #define _SCREEN_CAPTURER_X11_H_

-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/extensions/Xrandr.h>
-#include <X11/extensions/Xfixes.h>
+// forward declarations for X11 types
+struct _XDisplay;
+typedef struct _XDisplay Display;
+typedef unsigned long Window;
+struct _XRRScreenResources;
+typedef struct _XRRScreenResources XRRScreenResources;
+struct _XImage;
+typedef struct _XImage XImage;

 #include <atomic>
 #include <cstring>
@@ -38,11 +42,15 @@ class ScreenCapturerX11 : public ScreenCapturer {
  int Resume(int monitor_index) override;

  int SwitchTo(int monitor_index) override;
+  int ResetToInitialMonitor() override;

  std::vector<DisplayInfo> GetDisplayInfoList() override;

  void OnFrame();

+ private:
+  void DrawCursor(XImage* image, int x, int y);
+
 private:
  Display* display_ = nullptr;
  Window root_ = 0;
@@ -55,17 +63,14 @@ class ScreenCapturerX11 : public ScreenCapturer {
  std::atomic<bool> running_{false};
  std::atomic<bool> paused_{false};
  std::atomic<int> monitor_index_{0};
+  int initial_monitor_index_ = 0;
  std::atomic<bool> show_cursor_{true};
  int fps_ = 60;
  cb_desktop_data callback_;
  std::vector<DisplayInfo> display_info_list_;

-  // 缓冲区
  std::vector<uint8_t> y_plane_;
  std::vector<uint8_t> uv_plane_;
-  
-  // 鼠标光标相关
-  void DrawCursor(XImage* image, int x, int y);
 };
 }  // namespace crossdesk
 #endif
--- a/src/screen_capturer/macosx/screen_capturer_sck.cpp
+++ b/src/screen_capturer/macosx/screen_capturer_sck.cpp
@@ -62,6 +62,13 @@ int ScreenCapturerSck::SwitchTo(int monitor_index) {
  return -1;
 }

+int ScreenCapturerSck::ResetToInitialMonitor() {
+  if (screen_capturer_sck_impl_) {
+    return screen_capturer_sck_impl_->ResetToInitialMonitor();
+  }
+  return -1;
+}
+
 std::vector<DisplayInfo> ScreenCapturerSck::GetDisplayInfoList() {
  if (screen_capturer_sck_impl_) {
    return screen_capturer_sck_impl_->GetDisplayInfoList();
--- a/src/screen_capturer/macosx/screen_capturer_sck.h
+++ b/src/screen_capturer/macosx/screen_capturer_sck.h
@@ -33,6 +33,7 @@ class ScreenCapturerSck : public ScreenCapturer {
  int Resume(int monitor_index) override;

  int SwitchTo(int monitor_index) override;
+  int ResetToInitialMonitor() override;

  std::vector<DisplayInfo> GetDisplayInfoList() override;

--- a/src/screen_capturer/macosx/screen_capturer_sck_impl.mm
+++ b/src/screen_capturer/macosx/screen_capturer_sck_impl.mm
@@ -70,6 +70,7 @@ class API_AVAILABLE(macos(14.0)) ScreenCapturerSckImpl : public ScreenCapturer {
  int Resume(int monitor_index) override { return 0; }

  std::vector<DisplayInfo> GetDisplayInfoList() override { return display_info_list_; }
+  int ResetToInitialMonitor() override;

 private:
  std::vector<DisplayInfo> display_info_list_;
@@ -113,6 +114,7 @@ class API_AVAILABLE(macos(14.0)) ScreenCapturerSckImpl : public ScreenCapturer {
  // Currently selected display, or 0 if the full desktop is selected. This capturer does not
  // support full-desktop capture, and will fall back to the first display.
  CGDirectDisplayID current_display_ = 0;
+  int initial_monitor_index_ = 0;
 };

 std::string GetDisplayName(CGDirectDisplayID display_id) {
@@ -196,14 +198,26 @@ ScreenCapturerSckImpl::~ScreenCapturerSckImpl() {

 int ScreenCapturerSckImpl::Init(const int fps, cb_desktop_data cb) {
  _on_data = cb;
+  fps_ = fps;
+
+  if (@available(macOS 10.15, *)) {
+    bool has_permission = CGPreflightScreenCaptureAccess();
+    if (!has_permission) {
+      LOG_ERROR("Screen recording permission not granted");
+      return -1;
+    }
+  }

  dispatch_semaphore_t sema = dispatch_semaphore_create(0);
  __block SCShareableContent *content = nil;
+  __block NSError *capture_error = nil;

  [SCShareableContent
      getShareableContentWithCompletionHandler:^(SCShareableContent *result, NSError *error) {
        if (error) {
-          NSLog(@"Failed to get shareable content: %@", error);
+          capture_error = error;
+          LOG_ERROR("Failed to get shareable content: {}",
+                    std::string([error.localizedDescription UTF8String]));
        } else {
          content = result;
        }
@@ -211,9 +225,10 @@ int ScreenCapturerSckImpl::Init(const int fps, cb_desktop_data cb) {
      }];
  dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);

-  if (!content || content.displays.count == 0) {
-    LOG_ERROR("Failed to get display info");
-    return 0;
+  if (capture_error || !content || content.displays.count == 0) {
+    LOG_ERROR("Failed to get display info, error: {}",
+              std::string([capture_error.localizedDescription UTF8String]));
+    return -1;
  }

  CGDirectDisplayID displays[10];
@@ -248,10 +263,21 @@ int ScreenCapturerSckImpl::Init(const int fps, cb_desktop_data cb) {
    display_id_name_map_[display_id] = name;
  }

+  initial_monitor_index_ = 0;
  return 0;
 }

 int ScreenCapturerSckImpl::Start(bool show_cursor) {
+  if (permanent_error_) {
+    LOG_ERROR("Cannot start capturer: permanent error occurred");
+    return -1;
+  }
+
+  if (display_info_list_.empty()) {
+    LOG_ERROR("Cannot start capturer: display info not initialized");
+    return -1;
+  }
+
  show_cursor_ = show_cursor;
  StartOrReconfigureCapturer();
  return 0;
@@ -272,6 +298,25 @@ int ScreenCapturerSckImpl::SwitchTo(int monitor_index) {
  return 0;
 }

+int ScreenCapturerSckImpl::ResetToInitialMonitor() {
+  int target = initial_monitor_index_;
+  if (display_info_list_.empty()) return -1;
+  CGDirectDisplayID target_display = display_id_map_[target];
+  if (current_display_ == target_display) return 0;
+  if (stream_) {
+    [stream_ stopCaptureWithCompletionHandler:^(NSError *error) {
+      std::lock_guard<std::mutex> lock(lock_);
+      stream_ = nil;
+      current_display_ = target_display;
+      StartOrReconfigureCapturer();
+    }];
+  } else {
+    current_display_ = target_display;
+    StartOrReconfigureCapturer();
+  }
+  return 0;
+}
+
 int ScreenCapturerSckImpl::Destroy() {
  std::lock_guard<std::mutex> lock(lock_);
  if (stream_) {
@@ -307,17 +352,17 @@ void ScreenCapturerSckImpl::OnShareableContentCreated(SCShareableContent *conten
    return;
  }

-  if (!content.displays.count) {
+  if (!content.displays || content.displays.count == 0) {
    LOG_ERROR("getShareableContent returned no displays");
    permanent_error_ = true;
    return;
  }

-  SCDisplay *captured_display;
+  SCDisplay *captured_display = nil;
  {
    std::lock_guard<std::mutex> lock(lock_);
    for (SCDisplay *display in content.displays) {
-      if (current_display_ == display.displayID) {
+      if (current_display_ != 0 && current_display_ == display.displayID) {
        LOG_WARN("current display: {}, name: {}", current_display_,
                 display_id_name_map_[current_display_]);
        captured_display = display;
@@ -326,13 +371,33 @@ void ScreenCapturerSckImpl::OnShareableContentCreated(SCShareableContent *conten
    }
    if (!captured_display) {
      captured_display = content.displays.firstObject;
-      current_display_ = captured_display.displayID;
+      if (captured_display) {
+        current_display_ = captured_display.displayID;
+      }
    }
  }

+  if (!captured_display) {
+    LOG_ERROR("Failed to find valid display");
+    permanent_error_ = true;
+    return;
+  }
+
  SCContentFilter *filter = [[SCContentFilter alloc] initWithDisplay:captured_display
                                                    excludingWindows:@[]];
+  if (!filter) {
+    LOG_ERROR("Failed to create SCContentFilter");
+    permanent_error_ = true;
+    return;
+  }
+
  SCStreamConfiguration *config = [[SCStreamConfiguration alloc] init];
+  if (!config) {
+    LOG_ERROR("Failed to create SCStreamConfiguration");
+    permanent_error_ = true;
+    return;
+  }
+
  config.pixelFormat = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
  config.showsCursor = show_cursor_;
  config.width = filter.contentRect.size.width * filter.pointPixelScale;
@@ -423,11 +488,28 @@ void ScreenCapturerSckImpl::OnNewCVPixelBuffer(CVPixelBufferRef pixelBuffer,
 }

 void ScreenCapturerSckImpl::StartOrReconfigureCapturer() {
-  // The copy is needed to avoid capturing `this` in the Objective-C block. Accessing `helper_`
-  // inside the block is equivalent to `this->helper_` and would crash (UAF) if `this` is
-  // deleted before the block is executed.
+  if (permanent_error_) {
+    LOG_ERROR("Cannot reconfigure capturer: permanent error occurred");
+    return;
+  }
+
+  if (@available(macOS 10.15, *)) {
+    bool has_permission = CGPreflightScreenCaptureAccess();
+    if (!has_permission) {
+      LOG_ERROR("Screen recording permission not granted");
+      permanent_error_ = true;
+      return;
+    }
+  }
+
  SckHelper *local_helper = helper_;
  auto handler = ^(SCShareableContent *content, NSError *error) {
+    if (error) {
+      LOG_ERROR("getShareableContent failed: {}",
+                std::string([error.localizedDescription UTF8String]));
+      [local_helper onShareableContentCreated:nil];
+      return;
+    }
    [local_helper onShareableContentCreated:content];
  };
  [SCShareableContent getShareableContentWithCompletionHandler:handler];
--- a/src/screen_capturer/screen_capturer.h
+++ b/src/screen_capturer/screen_capturer.h
@@ -31,6 +31,7 @@ class ScreenCapturer {

  virtual std::vector<DisplayInfo> GetDisplayInfoList() = 0;
  virtual int SwitchTo(int monitor_index) = 0;
+  virtual int ResetToInitialMonitor() = 0;
 };
 }  // namespace crossdesk
 #endif
--- a/src/screen_capturer/screen_capturer_factory.h
+++ b/src/screen_capturer/screen_capturer_factory.h
@@ -8,7 +8,7 @@
 #define _SCREEN_CAPTURER_FACTORY_H_

 #ifdef _WIN32
-#include "screen_capturer_wgc.h"
+#include "screen_capturer_win.h"
 #elif __linux__
 #include "screen_capturer_x11.h"
 #elif __APPLE__
@@ -25,7 +25,7 @@ class ScreenCapturerFactory {
 public:
  ScreenCapturer* Create() {
 #ifdef _WIN32
-    return new ScreenCapturerWgc();
+    return new ScreenCapturerWin();
 #elif __linux__
    return new ScreenCapturerX11();
 #elif __APPLE__
@@ -37,4 +37,4 @@ class ScreenCapturerFactory {
  }
 };
 }  // namespace crossdesk
-#endif
+#endif
--- a/src/screen_capturer/windows/screen_capturer_dxgi.cpp
+++ b/src/screen_capturer/windows/screen_capturer_dxgi.cpp
@@ -0,0 +1,356 @@
+#include "screen_capturer_dxgi.h"
+
+#include <algorithm>
+#include <chrono>
+#include <string>
+#include <vector>
+
+#include "libyuv.h"
+#include "rd_log.h"
+
+namespace crossdesk {
+
+namespace {
+std::string WideToUtf8(const std::wstring& wstr) {
+  if (wstr.empty()) return {};
+  int size_needed = WideCharToMultiByte(
+      CP_UTF8, 0, wstr.data(), (int)wstr.size(), nullptr, 0, nullptr, nullptr);
+  std::string result(size_needed, 0);
+  WideCharToMultiByte(CP_UTF8, 0, wstr.data(), (int)wstr.size(), result.data(),
+                      size_needed, nullptr, nullptr);
+  return result;
+}
+
+std::string CleanDisplayName(const std::wstring& wide_name) {
+  std::string name = WideToUtf8(wide_name);
+  name.erase(std::remove_if(name.begin(), name.end(),
+                            [](unsigned char c) { return !std::isalnum(c); }),
+             name.end());
+  return name;
+}
+}  // namespace
+
+ScreenCapturerDxgi::ScreenCapturerDxgi() {}
+ScreenCapturerDxgi::~ScreenCapturerDxgi() {
+  Stop();
+  Destroy();
+}
+
+int ScreenCapturerDxgi::Init(const int fps, cb_desktop_data cb) {
+  fps_ = fps;
+  callback_ = cb;
+  if (!callback_) {
+    LOG_ERROR("DXGI: callback is null");
+    return -1;
+  }
+
+  if (!InitializeDxgi()) {
+    LOG_ERROR("DXGI: initialize DXGI failed");
+    return -2;
+  }
+
+  EnumerateDisplays();
+  if (display_info_list_.empty()) {
+    LOG_ERROR("DXGI: no displays found");
+    return -3;
+  }
+
+  monitor_index_ = 0;
+  initial_monitor_index_ = monitor_index_;
+  return 0;
+}
+
+int ScreenCapturerDxgi::Destroy() {
+  Stop();
+  ReleaseDuplication();
+  outputs_.clear();
+  d3d_context_.Reset();
+  d3d_device_.Reset();
+  dxgi_factory_.Reset();
+  if (nv12_frame_) {
+    delete[] nv12_frame_;
+    nv12_frame_ = nullptr;
+    nv12_width_ = 0;
+    nv12_height_ = 0;
+  }
+  return 0;
+}
+
+int ScreenCapturerDxgi::Start(bool show_cursor) {
+  if (running_) return 0;
+  show_cursor_ = show_cursor;
+
+  if (!CreateDuplicationForMonitor(monitor_index_)) {
+    LOG_ERROR("DXGI: create duplication failed for monitor {}",
+              monitor_index_.load());
+    return -1;
+  }
+
+  paused_ = false;
+  running_ = true;
+  thread_ = std::thread([this]() { CaptureLoop(); });
+  return 0;
+}
+
+int ScreenCapturerDxgi::Stop() {
+  if (!running_) return 0;
+  running_ = false;
+  if (thread_.joinable()) thread_.join();
+  ReleaseDuplication();
+  return 0;
+}
+
+int ScreenCapturerDxgi::Pause(int monitor_index) {
+  paused_ = true;
+  return 0;
+}
+
+int ScreenCapturerDxgi::Resume(int monitor_index) {
+  paused_ = false;
+  return 0;
+}
+
+int ScreenCapturerDxgi::SwitchTo(int monitor_index) {
+  if (monitor_index < 0 || monitor_index >= (int)display_info_list_.size()) {
+    LOG_ERROR("DXGI: invalid monitor index {}", monitor_index);
+    return -1;
+  }
+  paused_ = true;
+  monitor_index_ = monitor_index;
+  ReleaseDuplication();
+  if (!CreateDuplicationForMonitor(monitor_index_)) {
+    LOG_ERROR("DXGI: create duplication failed for monitor {}",
+              monitor_index_.load());
+    return -2;
+  }
+  paused_ = false;
+  LOG_INFO("DXGI: switched to monitor {}:{}", monitor_index_.load(),
+           display_info_list_[monitor_index_].name);
+  return 0;
+}
+
+int ScreenCapturerDxgi::ResetToInitialMonitor() {
+  if (display_info_list_.empty()) return -1;
+  int target = initial_monitor_index_;
+  if (target < 0 || target >= (int)display_info_list_.size()) return -1;
+  if (monitor_index_ == target) return 0;
+  if (running_) {
+    paused_ = true;
+    monitor_index_ = target;
+    ReleaseDuplication();
+    if (!CreateDuplicationForMonitor(monitor_index_)) {
+      paused_ = false;
+      return -2;
+    }
+    paused_ = false;
+    LOG_INFO("DXGI: reset to initial monitor {}:{}", monitor_index_.load(),
+             display_info_list_[monitor_index_].name);
+  } else {
+    monitor_index_ = target;
+  }
+  return 0;
+}
+
+bool ScreenCapturerDxgi::InitializeDxgi() {
+  UINT flags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
+#ifdef _DEBUG
+  flags |= D3D11_CREATE_DEVICE_DEBUG;
+#endif
+
+  D3D_FEATURE_LEVEL feature_levels[] = {
+      D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_1,
+      D3D_FEATURE_LEVEL_10_0};
+
+  D3D_FEATURE_LEVEL out_level{};
+  HRESULT hr = D3D11CreateDevice(
+      nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, flags, feature_levels,
+      ARRAYSIZE(feature_levels), D3D11_SDK_VERSION, d3d_device_.GetAddressOf(),
+      &out_level, d3d_context_.GetAddressOf());
+  if (FAILED(hr)) {
+    hr = D3D11CreateDevice(nullptr, D3D_DRIVER_TYPE_WARP, nullptr, flags,
+                           feature_levels, ARRAYSIZE(feature_levels),
+                           D3D11_SDK_VERSION, d3d_device_.GetAddressOf(),
+                           &out_level, d3d_context_.GetAddressOf());
+    if (FAILED(hr)) {
+      LOG_ERROR("DXGI: D3D11CreateDevice failed, hr={}", (int)hr);
+      return false;
+    }
+  }
+
+  hr = CreateDXGIFactory1(
+      __uuidof(IDXGIFactory1),
+      reinterpret_cast<void**>(dxgi_factory_.GetAddressOf()));
+  if (FAILED(hr)) {
+    LOG_ERROR("DXGI: CreateDXGIFactory1 failed, hr={}", (int)hr);
+    return false;
+  }
+  return true;
+}
+
+void ScreenCapturerDxgi::EnumerateDisplays() {
+  display_info_list_.clear();
+  outputs_.clear();
+
+  Microsoft::WRL::ComPtr<IDXGIAdapter> adapter;
+  for (UINT a = 0;
+       dxgi_factory_->EnumAdapters(a, adapter.ReleaseAndGetAddressOf()) !=
+       DXGI_ERROR_NOT_FOUND;
+       ++a) {
+    Microsoft::WRL::ComPtr<IDXGIOutput> output;
+    for (UINT o = 0; adapter->EnumOutputs(o, output.ReleaseAndGetAddressOf()) !=
+                     DXGI_ERROR_NOT_FOUND;
+         ++o) {
+      DXGI_OUTPUT_DESC desc{};
+      if (FAILED(output->GetDesc(&desc))) {
+        continue;
+      }
+      std::string name = CleanDisplayName(desc.DeviceName);
+      MONITORINFOEX mi{};
+      mi.cbSize = sizeof(MONITORINFOEX);
+      if (GetMonitorInfo(desc.Monitor, &mi)) {
+        bool is_primary = (mi.dwFlags & MONITORINFOF_PRIMARY) ? true : false;
+        DisplayInfo info((void*)desc.Monitor, name, is_primary,
+                         mi.rcMonitor.left, mi.rcMonitor.top,
+                         mi.rcMonitor.right, mi.rcMonitor.bottom);
+        // primary first
+        if (is_primary)
+          display_info_list_.insert(display_info_list_.begin(), info);
+        else
+          display_info_list_.push_back(info);
+        outputs_.push_back(output);
+      }
+    }
+  }
+}
+
+bool ScreenCapturerDxgi::CreateDuplicationForMonitor(int monitor_index) {
+  if (monitor_index < 0 || monitor_index >= (int)outputs_.size()) return false;
+  Microsoft::WRL::ComPtr<IDXGIOutput1> output1;
+  HRESULT hr = outputs_[monitor_index]->QueryInterface(
+      IID_PPV_ARGS(output1.GetAddressOf()));
+  if (FAILED(hr)) {
+    LOG_ERROR("DXGI: Query IDXGIOutput1 failed, hr={}", (int)hr);
+    return false;
+  }
+
+  duplication_.Reset();
+  hr = output1->DuplicateOutput(d3d_device_.Get(), duplication_.GetAddressOf());
+  if (FAILED(hr)) {
+    LOG_ERROR("DXGI: DuplicateOutput failed, hr={}", (int)hr);
+    return false;
+  }
+
+  staging_.Reset();
+  return true;
+}
+
+void ScreenCapturerDxgi::ReleaseDuplication() {
+  staging_.Reset();
+  if (duplication_) {
+    duplication_->ReleaseFrame();
+  }
+  duplication_.Reset();
+}
+
+void ScreenCapturerDxgi::CaptureLoop() {
+  const int timeout_ms = 33;
+  while (running_) {
+    if (paused_) {
+      std::this_thread::sleep_for(std::chrono::milliseconds(10));
+      continue;
+    }
+
+    if (!duplication_) {
+      std::this_thread::sleep_for(std::chrono::milliseconds(10));
+      continue;
+    }
+
+    DXGI_OUTDUPL_FRAME_INFO frame_info{};
+    Microsoft::WRL::ComPtr<IDXGIResource> desktop_resource;
+    HRESULT hr = duplication_->AcquireNextFrame(
+        timeout_ms, &frame_info, desktop_resource.GetAddressOf());
+    if (hr == DXGI_ERROR_WAIT_TIMEOUT) {
+      continue;
+    }
+    if (FAILED(hr)) {
+      LOG_ERROR("DXGI: AcquireNextFrame failed, hr={}", (int)hr);
+      // attempt to recreate duplication
+      ReleaseDuplication();
+      CreateDuplicationForMonitor(monitor_index_);
+      continue;
+    }
+
+    Microsoft::WRL::ComPtr<ID3D11Texture2D> acquired_tex;
+    if (desktop_resource) {
+      hr = desktop_resource->QueryInterface(
+          IID_PPV_ARGS(acquired_tex.GetAddressOf()));
+      if (FAILED(hr)) {
+        duplication_->ReleaseFrame();
+        continue;
+      }
+    } else {
+      duplication_->ReleaseFrame();
+      continue;
+    }
+
+    D3D11_TEXTURE2D_DESC src_desc{};
+    acquired_tex->GetDesc(&src_desc);
+
+    if (!staging_) {
+      D3D11_TEXTURE2D_DESC staging_desc = src_desc;
+      staging_desc.Usage = D3D11_USAGE_STAGING;
+      staging_desc.BindFlags = 0;
+      staging_desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
+      staging_desc.MiscFlags = 0;
+      hr = d3d_device_->CreateTexture2D(&staging_desc, nullptr,
+                                        staging_.GetAddressOf());
+      if (FAILED(hr)) {
+        LOG_ERROR("DXGI: CreateTexture2D staging failed, hr={}", (int)hr);
+        duplication_->ReleaseFrame();
+        continue;
+      }
+    }
+
+    d3d_context_->CopyResource(staging_.Get(), acquired_tex.Get());
+
+    D3D11_MAPPED_SUBRESOURCE mapped{};
+    hr = d3d_context_->Map(staging_.Get(), 0, D3D11_MAP_READ, 0, &mapped);
+    if (FAILED(hr)) {
+      duplication_->ReleaseFrame();
+      continue;
+    }
+
+    int logical_width = static_cast<int>(src_desc.Width);
+    int even_width = logical_width & ~1;
+    int even_height = static_cast<int>(src_desc.Height) & ~1;
+    if (even_width <= 0 || even_height <= 0) {
+      d3d_context_->Unmap(staging_.Get(), 0);
+      duplication_->ReleaseFrame();
+      continue;
+    }
+
+    int nv12_size = even_width * even_height * 3 / 2;
+    if (!nv12_frame_ || nv12_width_ != even_width ||
+        nv12_height_ != even_height) {
+      delete[] nv12_frame_;
+      nv12_frame_ = new unsigned char[nv12_size];
+      nv12_width_ = even_width;
+      nv12_height_ = even_height;
+    }
+
+    libyuv::ARGBToNV12(static_cast<const uint8_t*>(mapped.pData),
+                       static_cast<int>(mapped.RowPitch), nv12_frame_,
+                       even_width, nv12_frame_ + even_width * even_height,
+                       even_width, even_width, even_height);
+
+    if (callback_) {
+      callback_(nv12_frame_, nv12_size, even_width, even_height,
+                display_info_list_[monitor_index_].name.c_str());
+    }
+
+    d3d_context_->Unmap(staging_.Get(), 0);
+    duplication_->ReleaseFrame();
+  }
+}
+
+}  // namespace crossdesk
--- a/src/screen_capturer/windows/screen_capturer_dxgi.h
+++ b/src/screen_capturer/windows/screen_capturer_dxgi.h
@@ -0,0 +1,81 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-02-27
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_DXGI_H_
+#define _SCREEN_CAPTURER_DXGI_H_
+
+#include <Windows.h>
+#include <d3d11.h>
+#include <dxgi1_2.h>
+#include <wrl/client.h>
+
+#include <atomic>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "rd_log.h"
+#include "screen_capturer.h"
+
+namespace crossdesk {
+
+class ScreenCapturerDxgi : public ScreenCapturer {
+ public:
+  ScreenCapturerDxgi();
+  ~ScreenCapturerDxgi();
+
+ public:
+  int Init(const int fps, cb_desktop_data cb) override;
+  int Destroy() override;
+  int Start(bool show_cursor) override;
+  int Stop() override;
+
+  int Pause(int monitor_index) override;
+  int Resume(int monitor_index) override;
+
+  int SwitchTo(int monitor_index) override;
+  int ResetToInitialMonitor() override;
+
+  std::vector<DisplayInfo> GetDisplayInfoList() override {
+    return display_info_list_;
+  }
+
+ private:
+  bool InitializeDxgi();
+  void EnumerateDisplays();
+  bool CreateDuplicationForMonitor(int monitor_index);
+  void CaptureLoop();
+  void ReleaseDuplication();
+
+ private:
+  std::vector<DisplayInfo> display_info_list_;
+  std::vector<Microsoft::WRL::ComPtr<IDXGIOutput>> outputs_;
+
+  Microsoft::WRL::ComPtr<IDXGIFactory1> dxgi_factory_;
+  Microsoft::WRL::ComPtr<ID3D11Device> d3d_device_;
+  Microsoft::WRL::ComPtr<ID3D11DeviceContext> d3d_context_;
+  Microsoft::WRL::ComPtr<IDXGIOutputDuplication> duplication_;
+  Microsoft::WRL::ComPtr<ID3D11Texture2D> staging_;
+
+  std::atomic<bool> running_{false};
+  std::atomic<bool> paused_{false};
+  std::atomic<int> monitor_index_{0};
+  int initial_monitor_index_ = 0;
+  std::atomic<bool> show_cursor_{true};
+  std::thread thread_;
+  int fps_ = 60;
+  cb_desktop_data callback_ = nullptr;
+
+  unsigned char* nv12_frame_ = nullptr;
+  int nv12_width_ = 0;
+  int nv12_height_ = 0;
+};
+}  // namespace crossdesk
+
+#endif
--- a/src/screen_capturer/windows/screen_capturer_gdi.cpp
+++ b/src/screen_capturer/windows/screen_capturer_gdi.cpp
@@ -0,0 +1,217 @@
+#include "screen_capturer_gdi.h"
+
+#include <algorithm>
+#include <chrono>
+#include <string>
+#include <vector>
+
+#include "libyuv.h"
+#include "rd_log.h"
+
+namespace crossdesk {
+
+namespace {
+std::string WideToUtf8(const std::wstring& wstr) {
+  if (wstr.empty()) return {};
+  int size_needed = WideCharToMultiByte(
+      CP_UTF8, 0, wstr.data(), (int)wstr.size(), nullptr, 0, nullptr, nullptr);
+  std::string result(size_needed, 0);
+  WideCharToMultiByte(CP_UTF8, 0, wstr.data(), (int)wstr.size(), result.data(),
+                      size_needed, nullptr, nullptr);
+  return result;
+}
+
+std::string CleanDisplayName(const std::wstring& wide_name) {
+  std::string name = WideToUtf8(wide_name);
+  name.erase(std::remove_if(name.begin(), name.end(),
+                            [](unsigned char c) { return !std::isalnum(c); }),
+             name.end());
+  return name;
+}
+}  // namespace
+
+ScreenCapturerGdi::ScreenCapturerGdi() {}
+ScreenCapturerGdi::~ScreenCapturerGdi() {
+  Stop();
+  Destroy();
+}
+
+BOOL CALLBACK ScreenCapturerGdi::EnumMonitorProc(HMONITOR hMonitor, HDC, LPRECT,
+                                                 LPARAM data) {
+  auto displays = reinterpret_cast<std::vector<DisplayInfo>*>(data);
+  MONITORINFOEX mi{};
+  mi.cbSize = sizeof(MONITORINFOEX);
+  if (GetMonitorInfo(hMonitor, &mi)) {
+    std::string name = CleanDisplayName(mi.szDevice);
+    bool is_primary = (mi.dwFlags & MONITORINFOF_PRIMARY) ? true : false;
+    DisplayInfo info((void*)hMonitor, name, is_primary, mi.rcMonitor.left,
+                     mi.rcMonitor.top, mi.rcMonitor.right, mi.rcMonitor.bottom);
+    if (is_primary)
+      displays->insert(displays->begin(), info);
+    else
+      displays->push_back(info);
+  }
+  return TRUE;
+}
+
+void ScreenCapturerGdi::EnumerateDisplays() {
+  display_info_list_.clear();
+  EnumDisplayMonitors(nullptr, nullptr, EnumMonitorProc,
+                      (LPARAM)&display_info_list_);
+}
+
+int ScreenCapturerGdi::Init(const int fps, cb_desktop_data cb) {
+  fps_ = fps;
+  callback_ = cb;
+  if (!callback_) {
+    LOG_ERROR("GDI: callback is null");
+    return -1;
+  }
+  EnumerateDisplays();
+  if (display_info_list_.empty()) {
+    LOG_ERROR("GDI: no displays found");
+    return -2;
+  }
+  monitor_index_ = 0;
+  initial_monitor_index_ = monitor_index_;
+  return 0;
+}
+
+int ScreenCapturerGdi::Destroy() {
+  Stop();
+  if (nv12_frame_) {
+    delete[] nv12_frame_;
+    nv12_frame_ = nullptr;
+    nv12_width_ = 0;
+    nv12_height_ = 0;
+  }
+  return 0;
+}
+
+int ScreenCapturerGdi::Start(bool show_cursor) {
+  if (running_) return 0;
+  show_cursor_ = show_cursor;
+  paused_ = false;
+  running_ = true;
+  thread_ = std::thread([this]() { CaptureLoop(); });
+  return 0;
+}
+
+int ScreenCapturerGdi::Stop() {
+  if (!running_) return 0;
+  running_ = false;
+  if (thread_.joinable()) thread_.join();
+  return 0;
+}
+
+int ScreenCapturerGdi::Pause(int monitor_index) {
+  paused_ = true;
+  return 0;
+}
+
+int ScreenCapturerGdi::Resume(int monitor_index) {
+  paused_ = false;
+  return 0;
+}
+
+int ScreenCapturerGdi::SwitchTo(int monitor_index) {
+  if (monitor_index < 0 || monitor_index >= (int)display_info_list_.size()) {
+    LOG_ERROR("GDI: invalid monitor index {}", monitor_index);
+    return -1;
+  }
+  monitor_index_ = monitor_index;
+  LOG_INFO("GDI: switched to monitor {}:{}", monitor_index_.load(),
+           display_info_list_[monitor_index_].name);
+  return 0;
+}
+
+int ScreenCapturerGdi::ResetToInitialMonitor() {
+  if (display_info_list_.empty()) return -1;
+  int target = initial_monitor_index_;
+  if (target < 0 || target >= (int)display_info_list_.size()) return -1;
+  monitor_index_ = target;
+  LOG_INFO("GDI: reset to initial monitor {}:{}", monitor_index_.load(),
+           display_info_list_[monitor_index_].name);
+  return 0;
+}
+
+void ScreenCapturerGdi::CaptureLoop() {
+  int interval_ms = fps_ > 0 ? (1000 / fps_) : 16;
+  HDC screen_dc = GetDC(nullptr);
+  while (running_) {
+    if (paused_) {
+      std::this_thread::sleep_for(std::chrono::milliseconds(10));
+      continue;
+    }
+    if (!screen_dc) {
+      std::this_thread::sleep_for(std::chrono::milliseconds(10));
+      continue;
+    }
+
+    const auto& di = display_info_list_[monitor_index_];
+    int left = di.left;
+    int top = di.top;
+    int width = di.width & ~1;
+    int height = di.height & ~1;
+    if (width <= 0 || height <= 0) {
+      std::this_thread::sleep_for(std::chrono::milliseconds(interval_ms));
+      continue;
+    }
+
+    BITMAPINFO bmi{};
+    bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+    bmi.bmiHeader.biWidth = width;
+    bmi.bmiHeader.biHeight = -height;
+    bmi.bmiHeader.biPlanes = 1;
+    bmi.bmiHeader.biBitCount = 32;
+    bmi.bmiHeader.biCompression = BI_RGB;
+
+    void* bits = nullptr;
+    HDC mem_dc = CreateCompatibleDC(screen_dc);
+    HBITMAP dib =
+        CreateDIBSection(mem_dc, &bmi, DIB_RGB_COLORS, &bits, nullptr, 0);
+    HGDIOBJ old = SelectObject(mem_dc, dib);
+
+    BitBlt(mem_dc, 0, 0, width, height, screen_dc, left, top,
+           SRCCOPY | CAPTUREBLT);
+
+    if (show_cursor_) {
+      CURSORINFO ci{};
+      ci.cbSize = sizeof(CURSORINFO);
+      if (GetCursorInfo(&ci) && ci.flags == CURSOR_SHOWING && ci.hCursor) {
+        POINT pt = ci.ptScreenPos;
+        int cx = pt.x - left;
+        int cy = pt.y - top;
+        if (cx >= -64 && cy >= -64 && cx < width + 64 && cy < height + 64) {
+          DrawIconEx(mem_dc, cx, cy, ci.hCursor, 0, 0, 0, nullptr, DI_NORMAL);
+        }
+      }
+    }
+
+    int stride_argb = width * 4;
+    int nv12_size = width * height * 3 / 2;
+    if (!nv12_frame_ || nv12_width_ != width || nv12_height_ != height) {
+      delete[] nv12_frame_;
+      nv12_frame_ = new unsigned char[nv12_size];
+      nv12_width_ = width;
+      nv12_height_ = height;
+    }
+
+    libyuv::ARGBToNV12(static_cast<const uint8_t*>(bits), stride_argb,
+                       nv12_frame_, width, nv12_frame_ + width * height, width,
+                       width, height);
+
+    if (callback_) {
+      callback_(nv12_frame_, nv12_size, width, height, di.name.c_str());
+    }
+
+    SelectObject(mem_dc, old);
+    DeleteObject(dib);
+    DeleteDC(mem_dc);
+
+    std::this_thread::sleep_for(std::chrono::milliseconds(interval_ms));
+  }
+  ReleaseDC(nullptr, screen_dc);
+}
+
+}  // namespace crossdesk
--- a/src/screen_capturer/windows/screen_capturer_gdi.h
+++ b/src/screen_capturer/windows/screen_capturer_gdi.h
@@ -0,0 +1,68 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-02-27
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_GDI_H_
+#define _SCREEN_CAPTURER_GDI_H_
+
+#include <Windows.h>
+
+#include <atomic>
+#include <functional>
+#include <mutex>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "rd_log.h"
+#include "screen_capturer.h"
+
+namespace crossdesk {
+
+class ScreenCapturerGdi : public ScreenCapturer {
+ public:
+  ScreenCapturerGdi();
+  ~ScreenCapturerGdi();
+
+ public:
+  int Init(const int fps, cb_desktop_data cb) override;
+  int Destroy() override;
+  int Start(bool show_cursor) override;
+  int Stop() override;
+
+  int Pause(int monitor_index) override;
+  int Resume(int monitor_index) override;
+
+  int SwitchTo(int monitor_index) override;
+  int ResetToInitialMonitor() override;
+
+  std::vector<DisplayInfo> GetDisplayInfoList() override {
+    return display_info_list_;
+  }
+
+ private:
+  static BOOL CALLBACK EnumMonitorProc(HMONITOR hMonitor, HDC, LPRECT,
+                                       LPARAM data);
+  void EnumerateDisplays();
+  void CaptureLoop();
+
+ private:
+  std::vector<DisplayInfo> display_info_list_;
+  std::atomic<bool> running_{false};
+  std::atomic<bool> paused_{false};
+  std::atomic<int> monitor_index_{0};
+  int initial_monitor_index_ = 0;
+  std::atomic<bool> show_cursor_{true};
+  std::thread thread_;
+  int fps_ = 60;
+  cb_desktop_data callback_ = nullptr;
+
+  unsigned char* nv12_frame_ = nullptr;
+  int nv12_width_ = 0;
+  int nv12_height_ = 0;
+};
+}  // namespace crossdesk
+
+#endif
--- a/src/screen_capturer/windows/screen_capturer_wgc.cpp
+++ b/src/screen_capturer/windows/screen_capturer_wgc.cpp
@@ -56,8 +56,6 @@ BOOL WINAPI EnumMonitorProc(HMONITOR hmonitor, [[maybe_unused]] HDC hdc,
    }
  }

-  if (monitor_info_.dwFlags == DISPLAY_DEVICE_MIRRORING_DRIVER) return true;
-
  return true;
 }

@@ -77,12 +75,14 @@ ScreenCapturerWgc::~ScreenCapturerWgc() {
  CleanUp();

  if (nv12_frame_) {
-    delete nv12_frame_;
+    delete[] nv12_frame_;
    nv12_frame_ = nullptr;
+    nv12_width_ = 0;
+    nv12_height_ = 0;
  }

  if (nv12_frame_scaled_) {
-    delete nv12_frame_scaled_;
+    delete[] nv12_frame_scaled_;
    nv12_frame_scaled_ = nullptr;
  }
 }
@@ -147,6 +147,7 @@ int ScreenCapturerWgc::Init(const int fps, cb_desktop_data cb) {
  LOG_INFO("Default on monitor {}:{}", monitor_index_,
           display_info_list_[monitor_index_].name);

+  initial_monitor_index_ = monitor_index_;
  return 0;
 }

@@ -163,6 +164,8 @@ int ScreenCapturerWgc::Start(bool show_cursor) {
    return 4;
  }

+  bool any_started = false;
+  int last_error = 0;
  for (int i = 0; i < sessions_.size(); i++) {
    if (sessions_[i].inited_ == false) {
      LOG_ERROR("Session {} not inited", i);
@@ -172,17 +175,27 @@ int ScreenCapturerWgc::Start(bool show_cursor) {
    if (sessions_[i].running_) {
      LOG_ERROR("Session {} is already running", i);
    } else {
-      sessions_[i].session_->Start(show_cursor);
+      int ret = sessions_[i].session_->Start(show_cursor);
+      if (ret != 0) {
+        LOG_ERROR("Session {} start failed, ret={}", i, ret);
+        last_error = ret;
+        continue;
+      }

      if (i != 0) {
        sessions_[i].session_->Pause();
        sessions_[i].paused_ = true;
      }
      sessions_[i].running_ = true;
+      any_started = true;
    }
-    running_ = true;
+    running_ = running_ || any_started;
  }

+  if (!any_started) {
+    LOG_ERROR("WGC: no session started successfully");
+    return last_error != 0 ? last_error : -1;
+  }
  return 0;
 }

@@ -215,13 +228,14 @@ int ScreenCapturerWgc::Resume(int monitor_index) {
 }

 int ScreenCapturerWgc::Stop() {
+  running_ = false;
+
  for (int i = 0; i < sessions_.size(); i++) {
    if (sessions_[i].running_) {
      sessions_[i].session_->Stop();
      sessions_[i].running_ = false;
    }
  }
-  running_ = false;

  return 0;
 }
@@ -254,20 +268,83 @@ int ScreenCapturerWgc::SwitchTo(int monitor_index) {
  return 0;
 }

+int ScreenCapturerWgc::ResetToInitialMonitor() {
+  if (display_info_list_.empty()) return -1;
+  if (initial_monitor_index_ < 0 ||
+      initial_monitor_index_ >= static_cast<int>(display_info_list_.size())) {
+    return -1;
+  }
+  if (monitor_index_ == initial_monitor_index_) {
+    return 0;
+  }
+  if (running_) {
+    Pause(monitor_index_);
+  }
+  monitor_index_ = initial_monitor_index_;
+  LOG_INFO("Reset to initial monitor {}:{}", monitor_index_,
+           display_info_list_[monitor_index_].name);
+  if (running_) {
+    Resume(monitor_index_);
+  }
+  return 0;
+}
 void ScreenCapturerWgc::OnFrame(const WgcSession::wgc_session_frame& frame,
                                int id) {
+  if (!running_ || !on_data_) {
+    return;
+  }
+
+  std::lock_guard<std::mutex> lock(frame_mutex_);
+
  if (on_data_) {
-    if (!nv12_frame_) {
-      nv12_frame_ = new unsigned char[frame.width * frame.height * 3 / 2];
+    if (id < 0 || id >= static_cast<int>(display_info_list_.size())) {
+      LOG_ERROR("WGC OnFrame invalid display index: {}", id);
+      return;
    }

-    libyuv::ARGBToNV12((const uint8_t*)frame.data, frame.width * 4,
-                       (uint8_t*)nv12_frame_, frame.width,
-                       (uint8_t*)(nv12_frame_ + frame.width * frame.height),
-                       frame.width, frame.width, frame.height);
+    if (!frame.data || frame.row_pitch == 0) {
+      LOG_ERROR("WGC OnFrame received invalid frame: data={}, row_pitch={}",
+                (void*)frame.data, frame.row_pitch);
+      return;
+    }

-    on_data_(nv12_frame_, frame.width * frame.height * 3 / 2, frame.width,
-             frame.height, display_info_list_[id].name.c_str());
+    // calculate the maximum width that can be contained in one row according to
+    // row_pitch (BGRA: 4 bytes per pixel), and take the minimum with logical
+    // width to avoid out-of-bounds access.
+    unsigned int max_width_by_pitch = frame.row_pitch / 4u;
+    int logical_width = static_cast<int>(
+        frame.width < max_width_by_pitch ? frame.width : max_width_by_pitch);
+
+    // libyuv::ARGBToNV12 requires even width/height
+    int even_width = logical_width & ~1;
+    int even_height = static_cast<int>(frame.height) & ~1;
+
+    if (even_width <= 0 || even_height <= 0) {
+      LOG_ERROR(
+          "WGC OnFrame invalid frame size after adjust: width={} "
+          "(frame.width={}, max_by_pitch={}), height={}",
+          logical_width, frame.width, max_width_by_pitch, frame.height);
+      return;
+    }
+
+    int nv12_size = even_width * even_height * 3 / 2;
+
+    if (!nv12_frame_ || nv12_width_ != even_width ||
+        nv12_height_ != even_height) {
+      delete[] nv12_frame_;
+      nv12_frame_ = new unsigned char[nv12_size];
+      nv12_width_ = even_width;
+      nv12_height_ = even_height;
+    }
+
+    libyuv::ARGBToNV12((const uint8_t*)frame.data,
+                       static_cast<int>(frame.row_pitch), (uint8_t*)nv12_frame_,
+                       even_width,
+                       (uint8_t*)(nv12_frame_ + even_width * even_height),
+                       even_width, even_width, even_height);
+
+    on_data_(nv12_frame_, nv12_size, even_width, even_height,
+             display_info_list_[id].name.c_str());
  }
 }

--- a/src/screen_capturer/windows/screen_capturer_wgc.h
+++ b/src/screen_capturer/windows/screen_capturer_wgc.h
@@ -3,6 +3,7 @@

 #include <atomic>
 #include <functional>
+#include <mutex>
 #include <string>
 #include <thread>
 #include <vector>
@@ -33,6 +34,7 @@ class ScreenCapturerWgc : public ScreenCapturer,
  std::vector<DisplayInfo> GetDisplayInfoList() { return display_info_list_; }

  int SwitchTo(int monitor_index);
+  int ResetToInitialMonitor() override;

  void OnFrame(const WgcSession::wgc_session_frame& frame, int id);

@@ -44,6 +46,7 @@ class ScreenCapturerWgc : public ScreenCapturer,
  MONITORINFOEX monitor_info_;
  std::vector<DisplayInfo> display_info_list_;
  int monitor_index_ = 0;
+  int initial_monitor_index_ = 0;

 private:
  class WgcSessionInfo {
@@ -56,8 +59,8 @@ class ScreenCapturerWgc : public ScreenCapturer,

  std::vector<WgcSessionInfo> sessions_;

-  std::atomic_bool running_;
-  std::atomic_bool inited_;
+  std::atomic_bool running_{false};
+  std::atomic_bool inited_{false};

  int fps_ = 60;

@@ -65,6 +68,10 @@ class ScreenCapturerWgc : public ScreenCapturer,

  unsigned char* nv12_frame_ = nullptr;
  unsigned char* nv12_frame_scaled_ = nullptr;
+  int nv12_width_ = 0;
+  int nv12_height_ = 0;
+
+  std::mutex frame_mutex_;
 };
 }  // namespace crossdesk
 #endif
--- a/src/screen_capturer/windows/screen_capturer_win.cpp
+++ b/src/screen_capturer/windows/screen_capturer_win.cpp
@@ -0,0 +1,300 @@
+#include "screen_capturer_win.h"
+
+#include <Windows.h>
+
+#include <cmath>
+#include <filesystem>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "rd_log.h"
+#include "screen_capturer_dxgi.h"
+#include "screen_capturer_gdi.h"
+#include "wgc_plugin_api.h"
+
+namespace crossdesk {
+
+namespace {
+
+class WgcPluginCapturer final : public ScreenCapturer {
+ public:
+  using CreateFn = ScreenCapturer* (*)();
+  using DestroyFn = void (*)(ScreenCapturer*);
+
+  static std::unique_ptr<ScreenCapturer> Create() {
+    std::filesystem::path plugin_path;
+    wchar_t module_path[MAX_PATH] = {0};
+    const DWORD len = GetModuleFileNameW(nullptr, module_path, MAX_PATH);
+    if (len == 0 || len >= MAX_PATH) {
+      return nullptr;
+    }
+    plugin_path =
+        std::filesystem::path(module_path).parent_path() / L"wgc_plugin.dll";
+
+    HMODULE module = LoadLibraryW(plugin_path.c_str());
+    if (!module) {
+      return nullptr;
+    }
+
+    auto create_fn = reinterpret_cast<CreateFn>(
+        GetProcAddress(module, "CrossDeskCreateWgcCapturer"));
+    auto destroy_fn = reinterpret_cast<DestroyFn>(
+        GetProcAddress(module, "CrossDeskDestroyWgcCapturer"));
+    if (!create_fn || !destroy_fn) {
+      FreeLibrary(module);
+      return nullptr;
+    }
+
+    ScreenCapturer* impl = create_fn();
+    if (!impl) {
+      FreeLibrary(module);
+      return nullptr;
+    }
+
+    return std::unique_ptr<ScreenCapturer>(
+        new WgcPluginCapturer(module, impl, destroy_fn));
+  }
+
+  ~WgcPluginCapturer() override {
+    if (impl_) {
+      destroy_fn_(impl_);
+      impl_ = nullptr;
+    }
+    if (module_) {
+      FreeLibrary(module_);
+      module_ = nullptr;
+    }
+  }
+
+  int Init(const int fps, cb_desktop_data cb) override {
+    return impl_ ? impl_->Init(fps, std::move(cb)) : -1;
+  }
+  int Destroy() override { return impl_ ? impl_->Destroy() : 0; }
+  int Start(bool show_cursor) override {
+    return impl_ ? impl_->Start(show_cursor) : -1;
+  }
+  int Stop() override { return impl_ ? impl_->Stop() : 0; }
+  int Pause(int monitor_index) override {
+    return impl_ ? impl_->Pause(monitor_index) : -1;
+  }
+  int Resume(int monitor_index) override {
+    return impl_ ? impl_->Resume(monitor_index) : -1;
+  }
+  std::vector<DisplayInfo> GetDisplayInfoList() override {
+    return impl_ ? impl_->GetDisplayInfoList() : std::vector<DisplayInfo>{};
+  }
+  int SwitchTo(int monitor_index) override {
+    return impl_ ? impl_->SwitchTo(monitor_index) : -1;
+  }
+  int ResetToInitialMonitor() override {
+    return impl_ ? impl_->ResetToInitialMonitor() : -1;
+  }
+
+ private:
+  WgcPluginCapturer(HMODULE module, ScreenCapturer* impl, DestroyFn destroy_fn)
+      : module_(module), impl_(impl), destroy_fn_(destroy_fn) {}
+
+  HMODULE module_ = nullptr;
+  ScreenCapturer* impl_ = nullptr;
+  DestroyFn destroy_fn_ = nullptr;
+};
+
+}  // namespace
+
+ScreenCapturerWin::ScreenCapturerWin() {}
+ScreenCapturerWin::~ScreenCapturerWin() { Destroy(); }
+
+int ScreenCapturerWin::Init(const int fps, cb_desktop_data cb) {
+  fps_ = fps;
+  cb_orig_ = cb;
+  cb_ = [this](unsigned char* data, int size, int w, int h,
+               const char* display_name) {
+    std::string mapped_name;
+    {
+      std::lock_guard<std::mutex> lock(alias_mutex_);
+      auto it = label_alias_.find(display_name);
+      if (it != label_alias_.end())
+        mapped_name = it->second;
+      else
+        mapped_name = display_name;
+    }
+    {
+      std::lock_guard<std::mutex> lock(alias_mutex_);
+      if (canonical_labels_.find(mapped_name) == canonical_labels_.end()) {
+        return;
+      }
+    }
+    if (cb_orig_) cb_orig_(data, size, w, h, mapped_name.c_str());
+  };
+
+  int ret = -1;
+
+  impl_ = WgcPluginCapturer::Create();
+  impl_is_wgc_plugin_ = (impl_ != nullptr);
+  ret = impl_ ? impl_->Init(fps_, cb_) : -1;
+  if (ret == 0) {
+    LOG_INFO("Windows capturer: using WGC plugin");
+    BuildCanonicalFromImpl();
+    return 0;
+  }
+
+  LOG_WARN("Windows capturer: WGC plugin init failed (ret={}), try DXGI", ret);
+  impl_.reset();
+  impl_is_wgc_plugin_ = false;
+
+  impl_ = std::make_unique<ScreenCapturerDxgi>();
+  impl_is_wgc_plugin_ = false;
+  ret = impl_->Init(fps_, cb_);
+  if (ret == 0) {
+    LOG_INFO("Windows capturer: using DXGI Desktop Duplication");
+    BuildCanonicalFromImpl();
+    return 0;
+  }
+
+  LOG_WARN("Windows capturer: DXGI init failed (ret={}), fallback to GDI", ret);
+  impl_.reset();
+
+  impl_ = std::make_unique<ScreenCapturerGdi>();
+  impl_is_wgc_plugin_ = false;
+  ret = impl_->Init(fps_, cb_);
+  if (ret == 0) {
+    LOG_INFO("Windows capturer: using GDI BitBlt");
+    BuildCanonicalFromImpl();
+    return 0;
+  }
+
+  LOG_ERROR("Windows capturer: all implementations failed, ret={}", ret);
+  impl_.reset();
+  return -1;
+}
+
+int ScreenCapturerWin::Destroy() {
+  if (impl_) {
+    impl_->Destroy();
+    impl_.reset();
+    impl_is_wgc_plugin_ = false;
+  }
+  {
+    std::lock_guard<std::mutex> lock(alias_mutex_);
+    label_alias_.clear();
+    handle_to_canonical_.clear();
+    canonical_labels_.clear();
+  }
+  return 0;
+}
+
+int ScreenCapturerWin::Start(bool show_cursor) {
+  if (!impl_) return -1;
+  int ret = impl_->Start(show_cursor);
+  if (ret == 0) return 0;
+
+  LOG_WARN("Windows capturer: Start failed (ret={}), trying fallback", ret);
+
+  auto try_init_start = [&](std::unique_ptr<ScreenCapturer> cand) -> bool {
+    int r = cand->Init(fps_, cb_);
+    if (r != 0) return false;
+    int s = cand->Start(show_cursor);
+    if (s == 0) {
+      impl_ = std::move(cand);
+      impl_is_wgc_plugin_ = false;
+      RebuildAliasesFromImpl();
+      return true;
+    }
+    return false;
+  };
+
+  if (impl_is_wgc_plugin_) {
+    if (try_init_start(std::make_unique<ScreenCapturerDxgi>())) {
+      LOG_INFO("Windows capturer: fallback to DXGI");
+      return 0;
+    }
+    if (try_init_start(std::make_unique<ScreenCapturerGdi>())) {
+      LOG_INFO("Windows capturer: fallback to GDI");
+      return 0;
+    }
+  } else if (dynamic_cast<ScreenCapturerDxgi*>(impl_.get())) {
+    if (try_init_start(std::make_unique<ScreenCapturerGdi>())) {
+      LOG_INFO("Windows capturer: fallback to GDI");
+      return 0;
+    }
+  }
+
+  LOG_ERROR("Windows capturer: all fallbacks failed to start");
+  return ret;
+}
+
+int ScreenCapturerWin::Stop() {
+  if (!impl_) return 0;
+  return impl_->Stop();
+}
+
+int ScreenCapturerWin::Pause(int monitor_index) {
+  if (!impl_) return -1;
+  return impl_->Pause(monitor_index);
+}
+
+int ScreenCapturerWin::Resume(int monitor_index) {
+  if (!impl_) return -1;
+  return impl_->Resume(monitor_index);
+}
+
+int ScreenCapturerWin::SwitchTo(int monitor_index) {
+  if (!impl_) return -1;
+  return impl_->SwitchTo(monitor_index);
+}
+
+int ScreenCapturerWin::ResetToInitialMonitor() {
+  if (!impl_) return -1;
+  return impl_->ResetToInitialMonitor();
+}
+
+std::vector<DisplayInfo> ScreenCapturerWin::GetDisplayInfoList() {
+  if (!impl_) return {};
+  return impl_->GetDisplayInfoList();
+}
+
+void ScreenCapturerWin::BuildCanonicalFromImpl() {
+  std::lock_guard<std::mutex> lock(alias_mutex_);
+  handle_to_canonical_.clear();
+  label_alias_.clear();
+  canonical_displays_ = impl_->GetDisplayInfoList();
+  canonical_labels_.clear();
+  for (const auto& di : canonical_displays_) {
+    handle_to_canonical_[di.handle] = di.name;
+    canonical_labels_.insert(di.name);
+  }
+}
+
+void ScreenCapturerWin::RebuildAliasesFromImpl() {
+  std::lock_guard<std::mutex> lock(alias_mutex_);
+  label_alias_.clear();
+  auto current = impl_->GetDisplayInfoList();
+  auto similar = [&](const DisplayInfo& a, const DisplayInfo& b) {
+    int dl = std::abs(a.left - b.left);
+    int dt = std::abs(a.top - b.top);
+    int dw = std::abs(a.width - b.width);
+    int dh = std::abs(a.height - b.height);
+    return dl <= 10 && dt <= 10 && dw <= 20 && dh <= 20;
+  };
+  for (const auto& di : current) {
+    std::string canonical;
+    auto it = handle_to_canonical_.find(di.handle);
+    if (it != handle_to_canonical_.end()) {
+      canonical = it->second;
+    } else {
+      for (const auto& c : canonical_displays_) {
+        if (similar(di, c) || (di.is_primary && c.is_primary)) {
+          canonical = c.name;
+          break;
+        }
+      }
+    }
+    if (!canonical.empty() && canonical != di.name) {
+      label_alias_[di.name] = canonical;
+    }
+  }
+}
+
+}  // namespace crossdesk
--- a/src/screen_capturer/windows/screen_capturer_win.h
+++ b/src/screen_capturer/windows/screen_capturer_win.h
@@ -0,0 +1,56 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-02-27
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SCREEN_CAPTURER_WIN_H_
+#define _SCREEN_CAPTURER_WIN_H_
+
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+#include <unordered_set>
+#include <vector>
+
+#include "screen_capturer.h"
+
+namespace crossdesk {
+
+class ScreenCapturerWin : public ScreenCapturer {
+ public:
+  ScreenCapturerWin();
+  ~ScreenCapturerWin();
+
+ public:
+  int Init(const int fps, cb_desktop_data cb) override;
+  int Destroy() override;
+  int Start(bool show_cursor) override;
+  int Stop() override;
+
+  int Pause(int monitor_index) override;
+  int Resume(int monitor_index) override;
+
+  int SwitchTo(int monitor_index) override;
+  int ResetToInitialMonitor() override;
+
+  std::vector<DisplayInfo> GetDisplayInfoList() override;
+
+ private:
+  std::unique_ptr<ScreenCapturer> impl_;
+  bool impl_is_wgc_plugin_ = false;
+  int fps_ = 60;
+  cb_desktop_data cb_;
+  cb_desktop_data cb_orig_;
+
+  std::unordered_map<void*, std::string> handle_to_canonical_;
+  std::unordered_map<std::string, std::string> label_alias_;
+  std::mutex alias_mutex_;
+  std::vector<DisplayInfo> canonical_displays_;
+  std::unordered_set<std::string> canonical_labels_;
+
+  void BuildCanonicalFromImpl();
+  void RebuildAliasesFromImpl();
+};
+}  // namespace crossdesk
+#endif
--- a/src/screen_capturer/windows/wgc_plugin_api.h
+++ b/src/screen_capturer/windows/wgc_plugin_api.h
@@ -0,0 +1,29 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-03-20
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _WGC_PLUGIN_API_H_
+#define _WGC_PLUGIN_API_H_
+
+#include "screen_capturer.h"
+
+namespace crossdesk {
+class ScreenCapturer;
+}
+
+#if defined(_WIN32) && defined(CROSSDESK_WGC_PLUGIN_BUILD)
+#define CROSSDESK_WGC_PLUGIN_API __declspec(dllexport)
+#else
+#define CROSSDESK_WGC_PLUGIN_API
+#endif
+
+extern "C" {
+CROSSDESK_WGC_PLUGIN_API crossdesk::ScreenCapturer*
+CrossDeskCreateWgcCapturer();
+CROSSDESK_WGC_PLUGIN_API void CrossDeskDestroyWgcCapturer(
+    crossdesk::ScreenCapturer* capturer);
+}
+
+#endif
--- a/src/screen_capturer/windows/wgc_plugin_entry.cpp
+++ b/src/screen_capturer/windows/wgc_plugin_entry.cpp
@@ -0,0 +1,13 @@
+#include "screen_capturer_wgc.h"
+#include "wgc_plugin_api.h"
+
+extern "C" {
+
+crossdesk::ScreenCapturer* CrossDeskCreateWgcCapturer() {
+  return new crossdesk::ScreenCapturerWgc();
+}
+
+void CrossDeskDestroyWgcCapturer(crossdesk::ScreenCapturer* capturer) {
+  delete capturer;
+}
+}
--- a/src/screen_capturer/windows/wgc_session_impl.cpp
+++ b/src/screen_capturer/windows/wgc_session_impl.cpp
@@ -4,13 +4,14 @@

 #include <atomic>
 #include <functional>
-#include <iostream>
 #include <memory>

-#define CHECK_INIT                            \
-  if (!is_initialized_) {                     \
-    std::cout << "AE_NEED_INIT" << std::endl; \
-    return 4;                                 \
+#include "rd_log.h"
+
+#define CHECK_INIT             \
+  if (!is_initialized_) {      \
+    LOG_ERROR("AE_NEED_INIT"); \
+    return 4;                  \
  }

 #define CHECK_CLOSED                         \
@@ -64,6 +65,7 @@ int WgcSessionImpl::Start(bool show_cursor) {

  CHECK_INIT;
  try {
+    last_show_cursor_ = show_cursor;
    if (!capture_session_) {
      auto current_size = capture_item_.Size();
      capture_framepool_ =
@@ -89,13 +91,12 @@ int WgcSessionImpl::Start(bool show_cursor) {
    // we need to test the performance later
    // loop_ = std::thread(std::bind(&WgcSessionImpl::message_func, this));

-    capture_session_.StartCapture();
-
    capture_session_.IsCursorCaptureEnabled(show_cursor);
+    capture_session_.StartCapture();

    error = 0;
  } catch (winrt::hresult_error) {
-    std::cout << "AE_WGC_CREATE_CAPTURER_FAILED" << std::endl;
+    LOG_ERROR("AE_WGC_CREATE_CAPTURER_FAILED");
    return 86;
  } catch (...) {
    return 86;
@@ -246,8 +247,15 @@ void WgcSessionImpl::OnFrame(
      auto frame_captured =
          GetDXGIInterfaceFromObject<ID3D11Texture2D>(frame.Surface());

-      if (!d3d11_texture_mapped_ || is_new_size)
-        CreateMappedTexture(frame_captured);
+      if (!d3d11_texture_mapped_ || is_new_size) {
+        HRESULT tex_hr = CreateMappedTexture(frame_captured);
+        if (FAILED(tex_hr)) {
+          OutputDebugStringW(
+              (L"CreateMappedTexture failed: " + std::to_wstring(tex_hr))
+                  .c_str());
+          return;
+        }
+      }

      d3d11_device_context_->CopyResource(d3d11_texture_mapped_.get(),
                                          frame_captured.get());
@@ -262,6 +270,7 @@ void WgcSessionImpl::OnFrame(
      if (FAILED(hr)) {
        OutputDebugStringW(
            (L"map resource failed: " + std::to_wstring(hr)).c_str());
+        return;
      }

      // copy data from map_result.pData
@@ -290,14 +299,31 @@ void WgcSessionImpl::OnFrame(
 void WgcSessionImpl::OnClosed(
    winrt::Windows::Graphics::Capture::GraphicsCaptureItem const&,
    winrt::Windows::Foundation::IInspectable const&) {
-  OutputDebugStringW(L"WgcSessionImpl::OnClosed");
+  std::lock_guard locker(lock_);
+  try {
+    CleanUp();
+    is_initialized_ = false;
+    if (Initialize() == 0) {
+      int ret = Start(last_show_cursor_);
+      if (ret == 0) {
+        OutputDebugStringW(L"WgcSessionImpl::OnClosed: auto recovered");
+      } else {
+        OutputDebugStringW(L"WgcSessionImpl::OnClosed: recover Start failed");
+      }
+    } else {
+      OutputDebugStringW(
+          L"WgcSessionImpl::OnClosed: recover Initialize failed");
+    }
+  } catch (...) {
+    OutputDebugStringW(L"WgcSessionImpl::OnClosed: exception during recover");
+  }
 }

 int WgcSessionImpl::Initialize() {
  if (is_initialized_) return 0;

  if (!(d3d11_direct_device_ = CreateD3D11Device())) {
-    std::cout << "AE_D3D_CREATE_DEVICE_FAILED" << std::endl;
+    LOG_ERROR("AE_D3D_CREATE_DEVICE_FAILED");
    return 1;
  }

@@ -313,7 +339,7 @@ int WgcSessionImpl::Initialize() {
    d3d11_device->GetImmediateContext(d3d11_device_context_.put());

  } catch (winrt::hresult_error) {
-    std::cout << "AE_WGC_CREATE_CAPTURER_FAILED" << std::endl;
+    LOG_ERROR("AE_WGC_CREATE_CAPTURER_FAILED");
    return 86;
  } catch (...) {
    return 86;
@@ -378,4 +404,4 @@ LRESULT CALLBACK WindowProc(HWND window, UINT message, WPARAM w_param,
 //   ::CloseWindow(hwnd_);
 //   ::DestroyWindow(hwnd_);
 // }
-}  // namespace crossdesk
+}  // namespace crossdesk
--- a/src/screen_capturer/windows/wgc_session_impl.h
+++ b/src/screen_capturer/windows/wgc_session_impl.h
@@ -79,6 +79,7 @@ class WgcSessionImpl : public WgcSession {
  bool is_initialized_ = false;
  bool is_running_ = false;
  bool is_paused_ = false;
+  bool last_show_cursor_ = false;

  wgc_session_observer* observer_ = nullptr;

@@ -116,4 +117,4 @@ class WgcSessionImpl : public WgcSession {
 //   return result;
 // }
 }  // namespace crossdesk
-#endif
+#endif
--- a/src/speaker_capturer/macosx/speaker_capturer_macosx.mm
+++ b/src/speaker_capturer/macosx/speaker_capturer_macosx.mm
@@ -38,8 +38,50 @@ class SpeakerCapturerMacosx;

  if (_owner->cb_ && dataPtr && length > 0 && asbd) {
    std::vector<short> out_pcm16;
-    // ... 数据转换逻辑保持不变 ...
-    // 调用回调
+    if (asbd->mFormatFlags & kAudioFormatFlagIsFloat) {
+      int channels = asbd->mChannelsPerFrame;
+      int samples = (int)(length / sizeof(float));
+      float* floatData = (float*)dataPtr;
+      std::vector<short> pcm16(samples);
+      for (int i = 0; i < samples; ++i) {
+        float v = floatData[i];
+        if (v > 1.0f) v = 1.0f;
+        if (v < -1.0f) v = -1.0f;
+        pcm16[i] = (short)(v * 32767.0f);
+      }
+
+      if (channels > 1) {
+        int mono_samples = samples / channels;
+        out_pcm16.resize(mono_samples);
+        for (int i = 0; i < mono_samples; ++i) {
+          int sum = 0;
+          for (int c = 0; c < channels; ++c) {
+            sum += pcm16[i * channels + c];
+          }
+          out_pcm16[i] = sum / channels;
+        }
+      } else {
+        out_pcm16 = std::move(pcm16);
+      }
+    } else if (asbd->mBitsPerChannel == 16) {
+      int channels = asbd->mChannelsPerFrame;
+      int samples = (int)(length / 2);
+      short* src = (short*)dataPtr;
+      if (channels > 1) {
+        int mono_samples = samples / channels;
+        out_pcm16.resize(mono_samples);
+        for (int i = 0; i < mono_samples; ++i) {
+          int sum = 0;
+          for (int c = 0; c < channels; ++c) {
+            sum += src[i * channels + c];
+          }
+          out_pcm16[i] = sum / channels;
+        }
+      } else {
+        out_pcm16.assign(src, src + samples);
+      }
+    }
+
    size_t frame_bytes = 960;  // 480 * 2
    size_t total_bytes = out_pcm16.size() * sizeof(short);
    unsigned char* p = (unsigned char*)out_pcm16.data();
@@ -48,6 +90,7 @@ class SpeakerCapturerMacosx;
    }
  }
 }
+
@end

 namespace crossdesk {
--- a/src/thumbnail/thumbnail.cpp
+++ b/src/thumbnail/thumbnail.cpp
@@ -156,6 +156,12 @@ Thumbnail::~Thumbnail() {
  }
 }

+int Thumbnail::SetThumbnailDpiScale(float dpi_scale) {
+  thumbnail_width_ = static_cast<int>(thumbnail_width_ * dpi_scale);
+  thumbnail_height_ = static_cast<int>(thumbnail_height_ * dpi_scale);
+  return 0;
+}
+
 int Thumbnail::SaveToThumbnail(const char* yuv420p, int width, int height,
                               const std::string& remote_id,
                               const std::string& host_name,
--- a/src/thumbnail/thumbnail.h
+++ b/src/thumbnail/thumbnail.h
@@ -33,6 +33,8 @@ class Thumbnail {
  ~Thumbnail();

 public:
+  int SetThumbnailDpiScale(float dpi_scale);
+
  int SaveToThumbnail(const char* yuv420p, int width, int height,
                      const std::string& remote_id,
                      const std::string& host_name,
--- a/src/tools/clipboard.cpp
+++ b/src/tools/clipboard.cpp
@@ -0,0 +1,540 @@
+
+#include "clipboard.h"
+
+#include <atomic>
+#include <chrono>
+#include <mutex>
+#include <string>
+#include <thread>
+
+#include "rd_log.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#elif __linux__
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/Xfixes.h>
+
+#include <cstring>
+#include <memory>
+#endif
+
+namespace crossdesk {
+
+std::atomic<bool> g_monitoring{false};
+std::thread g_monitor_thread;
+std::mutex g_monitor_mutex;
+std::string g_last_clipboard_text;
+int g_check_interval_ms = 100;
+Clipboard::OnClipboardChanged g_on_clipboard_changed;
+
+#ifdef _WIN32
+HWND g_clipboard_wnd = nullptr;
+const char* g_clipboard_class_name = "CrossDeskClipboardMonitor";
+#endif
+
+#ifdef __linux__
+Display* g_x11_display = nullptr;
+Atom g_clipboard_atom = None;
+Atom g_xfixes_selection_notify = None;
+#endif
+}  // namespace crossdesk
+
+namespace crossdesk {
+
+#ifdef _WIN32
+std::string Clipboard::GetText() {
+  if (!OpenClipboard(nullptr)) {
+    LOG_ERROR("Clipboard::GetText: failed to open clipboard");
+    return "";
+  }
+
+  std::string result;
+  HANDLE hData = GetClipboardData(CF_UNICODETEXT);
+  if (hData != nullptr) {
+    wchar_t* pszText = static_cast<wchar_t*>(GlobalLock(hData));
+    if (pszText != nullptr) {
+      int size_needed = WideCharToMultiByte(CP_UTF8, 0, pszText, -1, nullptr, 0,
+                                            nullptr, nullptr);
+      if (size_needed > 0) {
+        // -1 because WideCharToMultiByte contains '\0'
+        result.resize(size_needed - 1);
+        WideCharToMultiByte(CP_UTF8, 0, pszText, -1, &result[0], size_needed,
+                            nullptr, nullptr);
+      }
+      GlobalUnlock(hData);
+    }
+  }
+
+  CloseClipboard();
+  return result;
+}
+
+bool Clipboard::SetText(const std::string& text) {
+  if (!OpenClipboard(nullptr)) {
+    LOG_ERROR("Clipboard::SetText: failed to open clipboard");
+    return false;
+  }
+
+  if (!EmptyClipboard()) {
+    LOG_ERROR("Clipboard::SetText: failed to empty clipboard");
+    CloseClipboard();
+    return false;
+  }
+
+  // Convert UTF-8 string to wide char
+  int size_needed =
+      MultiByteToWideChar(CP_UTF8, 0, text.c_str(), -1, nullptr, 0);
+  if (size_needed <= 0) {
+    LOG_ERROR("Clipboard::SetText: failed to convert to wide char");
+    CloseClipboard();
+    return false;
+  }
+
+  HGLOBAL hMem = GlobalAlloc(GMEM_MOVEABLE, size_needed * sizeof(wchar_t));
+  if (hMem == nullptr) {
+    LOG_ERROR("Clipboard::SetText: failed to allocate memory");
+    CloseClipboard();
+    return false;
+  }
+
+  wchar_t* pszText = static_cast<wchar_t*>(GlobalLock(hMem));
+  if (pszText == nullptr) {
+    LOG_ERROR("Clipboard::SetText: failed to lock memory");
+    GlobalFree(hMem);
+    CloseClipboard();
+    return false;
+  }
+
+  MultiByteToWideChar(CP_UTF8, 0, text.c_str(), -1, pszText, size_needed);
+  GlobalUnlock(hMem);
+
+  if (SetClipboardData(CF_UNICODETEXT, hMem) == nullptr) {
+    LOG_ERROR("Clipboard::SetText: failed to set clipboard data");
+    GlobalFree(hMem);
+    CloseClipboard();
+    return false;
+  }
+
+  CloseClipboard();
+  return true;
+}
+
+bool Clipboard::HasText() {
+  if (!OpenClipboard(nullptr)) {
+    return false;
+  }
+
+  bool has_text = IsClipboardFormatAvailable(CF_UNICODETEXT) ||
+                  IsClipboardFormatAvailable(CF_TEXT);
+  CloseClipboard();
+  return has_text;
+}
+
+#elif __APPLE__
+// macOS implementation is in clipboard_mac.mm
+#elif __linux__
+
+std::string Clipboard::GetText() {
+  Display* display = XOpenDisplay(nullptr);
+  if (display == nullptr) {
+    LOG_ERROR("Clipboard::GetText: failed to open X display");
+    return "";
+  }
+
+  std::string result;
+  Window owner = XGetSelectionOwner(display, XA_PRIMARY);
+  if (owner == None) {
+    // Try using CLIPBOARD
+    owner =
+        XGetSelectionOwner(display, XInternAtom(display, "CLIPBOARD", False));
+    if (owner == None) {
+      XCloseDisplay(display);
+      return "";
+    }
+  }
+
+  Atom selection = XA_PRIMARY;
+  Atom target = XInternAtom(display, "UTF8_STRING", False);
+  if (target == None) {
+    target = XA_STRING;
+  }
+
+  XEvent event;
+  Window window = XCreateSimpleWindow(display, DefaultRootWindow(display), 0, 0,
+                                      1, 1, 0, 0, 0);
+  XSelectInput(display, window, PropertyChangeMask);
+
+  XConvertSelection(display, selection, target, XA_PRIMARY, window,
+                    CurrentTime);
+
+  // Wait for selection conversion to complete
+  bool done = false;
+  while (!done) {
+    XNextEvent(display, &event);
+    if (event.type == SelectionNotify) {
+      if (event.xselection.property == None) {
+        // Try using CLIPBOARD
+        if (selection == XA_PRIMARY) {
+          selection = XInternAtom(display, "CLIPBOARD", False);
+          XConvertSelection(display, selection, target, XA_PRIMARY, window,
+                            CurrentTime);
+          continue;
+        }
+        break;
+      }
+
+      Atom actual_type;
+      int actual_format;
+      unsigned long nitems;
+      unsigned long bytes_after;
+      unsigned char* data = nullptr;
+
+      if (XGetWindowProperty(display, window, XA_PRIMARY, 0, LONG_MAX / 4,
+                             False, AnyPropertyType, &actual_type,
+                             &actual_format, &nitems, &bytes_after,
+                             &data) == Success) {
+        if (data != nullptr) {
+          result = std::string(reinterpret_cast<char*>(data), nitems);
+          XFree(data);
+        }
+        done = true;
+      }
+    }
+  }
+
+  XDestroyWindow(display, window);
+  XCloseDisplay(display);
+  return result;
+}
+
+bool Clipboard::SetText(const std::string& text) {
+  Display* display = XOpenDisplay(nullptr);
+  if (display == nullptr) {
+    LOG_ERROR("Clipboard::SetText: failed to open X display");
+    return false;
+  }
+
+  Window window = XCreateSimpleWindow(display, DefaultRootWindow(display), 0, 0,
+                                      1, 1, 0, 0, 0);
+  Atom clipboard = XInternAtom(display, "CLIPBOARD", False);
+  Atom utf8_string = XInternAtom(display, "UTF8_STRING", False);
+  Atom targets = XInternAtom(display, "TARGETS", False);
+  Atom xa_string = XA_STRING;
+
+  XSetSelectionOwner(display, clipboard, window, CurrentTime);
+  if (XGetSelectionOwner(display, clipboard) != window) {
+    LOG_ERROR("Clipboard::SetText: failed to set selection owner");
+    XDestroyWindow(display, window);
+    XCloseDisplay(display);
+    return false;
+  }
+
+  XChangeProperty(display, window, XA_PRIMARY, utf8_string, 8, PropModeReplace,
+                  reinterpret_cast<const unsigned char*>(text.c_str()),
+                  static_cast<int>(text.length()));
+
+  XEvent event;
+  while (true) {
+    XNextEvent(display, &event);
+    if (event.type == SelectionRequest) {
+      XSelectionRequestEvent* req = &event.xselectionrequest;
+      XSelectionEvent se;
+      se.type = SelectionNotify;
+      se.display = req->display;
+      se.requestor = req->requestor;
+      se.selection = req->selection;
+      se.time = req->time;
+      se.target = req->target;
+      se.property = req->property;
+
+      if (req->target == targets) {
+        // Return supported formats
+        Atom supported[] = {utf8_string, xa_string, targets};
+        XChangeProperty(display, req->requestor, req->property, XA_ATOM, 32,
+                        PropModeReplace,
+                        reinterpret_cast<unsigned char*>(supported), 3);
+        se.property = req->property;
+      } else if (req->target == utf8_string || req->target == xa_string) {
+        // Return text data
+        XChangeProperty(display, req->requestor, req->property, req->target, 8,
+                        PropModeReplace,
+                        reinterpret_cast<const unsigned char*>(text.c_str()),
+                        static_cast<int>(text.length()));
+        se.property = req->property;
+      } else {
+        se.property = None;
+      }
+
+      XSendEvent(display, req->requestor, False, 0,
+                 reinterpret_cast<XEvent*>(&se));
+      XSync(display, False);
+    } else if (event.type == SelectionClear) {
+      break;
+    }
+  }
+
+  XDestroyWindow(display, window);
+  XCloseDisplay(display);
+  return true;
+}
+
+bool Clipboard::HasText() {
+  Display* display = XOpenDisplay(nullptr);
+  if (display == nullptr) {
+    return false;
+  }
+
+  Atom clipboard = XInternAtom(display, "CLIPBOARD", False);
+  Window owner = XGetSelectionOwner(display, clipboard);
+  if (owner == None) {
+    owner = XGetSelectionOwner(display, XA_PRIMARY);
+  }
+
+  XCloseDisplay(display);
+  return owner != None;
+}
+
+#else
+
+std::string Clipboard::GetText() {
+  LOG_ERROR("Clipboard::GetText: unsupported platform");
+  return "";
+}
+
+bool Clipboard::SetText(const std::string& text) {
+  LOG_ERROR("Clipboard::SetText: unsupported platform");
+  return false;
+}
+
+bool Clipboard::HasText() {
+  LOG_ERROR("Clipboard::HasText: unsupported platform");
+  return false;
+}
+
+#endif
+
+void HandleClipboardChange() {
+  if (!Clipboard::HasText()) {
+    std::lock_guard<std::mutex> lock(g_monitor_mutex);
+    if (!g_last_clipboard_text.empty()) {
+      g_last_clipboard_text.clear();
+      LOG_INFO("Clipboard content cleared");
+    }
+    return;
+  }
+
+  std::string current_text = Clipboard::GetText();
+
+  // Check if the content has changed
+  {
+    std::lock_guard<std::mutex> lock(g_monitor_mutex);
+    if (current_text != g_last_clipboard_text) {
+      g_last_clipboard_text = current_text;
+      if (!current_text.empty()) {
+        if (g_on_clipboard_changed) {
+          int ret = g_on_clipboard_changed(current_text.c_str(),
+                                           current_text.length());
+          if (ret != 0) {
+            LOG_WARN("Clipboard callback returned error: {}", ret);
+          }
+        }
+      }
+    }
+  }
+}
+
+#ifdef _WIN32
+LRESULT CALLBACK ClipboardWndProc(HWND hwnd, UINT uMsg, WPARAM wParam,
+                                  LPARAM lParam) {
+  if (uMsg == WM_CLIPBOARDUPDATE) {
+    HandleClipboardChange();
+    return 0;
+  }
+  return DefWindowProc(hwnd, uMsg, wParam, lParam);
+}
+
+static void MonitorThreadFunc() {
+  // Create a hidden window to receive clipboard messages
+  WNDCLASSA wc = {0};
+  wc.lpfnWndProc = ClipboardWndProc;
+  wc.hInstance = GetModuleHandle(nullptr);
+  wc.lpszClassName = g_clipboard_class_name;
+  RegisterClassA(&wc);
+
+  g_clipboard_wnd = CreateWindowA(g_clipboard_class_name, nullptr, 0, 0, 0, 0,
+                                  0, HWND_MESSAGE, nullptr, nullptr, nullptr);
+  if (!g_clipboard_wnd) {
+    LOG_ERROR("Failed to create clipboard monitor window");
+    g_monitoring.store(false);
+    return;
+  }
+
+  // Register clipboard format listener
+  if (!AddClipboardFormatListener(g_clipboard_wnd)) {
+    LOG_ERROR("Failed to add clipboard format listener");
+    DestroyWindow(g_clipboard_wnd);
+    g_clipboard_wnd = nullptr;
+    g_monitoring.store(false);
+    return;
+  }
+
+  LOG_INFO("Clipboard event monitoring started (Windows)");
+
+  MSG msg;
+  while (g_monitoring.load()) {
+    BOOL ret = GetMessage(&msg, nullptr, 0, 0);
+    if (ret == 0 || ret == -1) {
+      break;
+    }
+    TranslateMessage(&msg);
+    DispatchMessage(&msg);
+  }
+
+  RemoveClipboardFormatListener(g_clipboard_wnd);
+  if (g_clipboard_wnd) {
+    DestroyWindow(g_clipboard_wnd);
+    g_clipboard_wnd = nullptr;
+  }
+  UnregisterClassA(g_clipboard_class_name, GetModuleHandle(nullptr));
+}
+
+#elif __APPLE__
+// macOS use notification mechanism, need external functions
+extern void StartMacOSClipboardMonitoring();
+extern void StopMacOSClipboardMonitoring();
+
+static void MonitorThreadFunc() { StartMacOSClipboardMonitoring(); }
+
+#elif __linux__
+static void MonitorThreadFunc() {
+  g_x11_display = XOpenDisplay(nullptr);
+  if (!g_x11_display) {
+    LOG_ERROR("Failed to open X display for clipboard monitoring");
+    g_monitoring.store(false);
+    return;
+  }
+
+  // Check if XFixes extension is available
+  int event_base, error_base;
+  if (!XFixesQueryExtension(g_x11_display, &event_base, &error_base)) {
+    LOG_WARN("XFixes extension not available, falling back to polling");
+    XCloseDisplay(g_x11_display);
+    g_x11_display = nullptr;
+    // fallback to polling mode
+    while (g_monitoring.load()) {
+      std::this_thread::sleep_for(
+          std::chrono::milliseconds(g_check_interval_ms));
+      if (!g_monitoring.load()) {
+        break;
+      }
+      HandleClipboardChange();
+    }
+    return;
+  }
+
+  g_clipboard_atom = XInternAtom(g_x11_display, "CLIPBOARD", False);
+  g_xfixes_selection_notify =
+      XInternAtom(g_x11_display, "XFIXES_SELECTION_NOTIFY", False);
+
+  // Create event window
+  Window root = DefaultRootWindow(g_x11_display);
+  Window event_window =
+      XCreateSimpleWindow(g_x11_display, root, 0, 0, 1, 1, 0, 0, 0);
+
+  // Select events to monitor
+  XFixesSelectSelectionInput(g_x11_display, event_window, g_clipboard_atom,
+                             XFixesSetSelectionOwnerNotifyMask |
+                                 XFixesSelectionWindowDestroyNotifyMask |
+                                 XFixesSelectionClientCloseNotifyMask);
+
+  LOG_INFO("Clipboard event monitoring started (Linux XFixes)");
+
+  XEvent event;
+  constexpr int kEventPollIntervalMs = 20;
+  while (g_monitoring.load()) {
+    // Avoid blocking on XNextEvent so StopMonitoring() can stop quickly.
+    while (g_monitoring.load() && XPending(g_x11_display) > 0) {
+      XNextEvent(g_x11_display, &event);
+      if (event.type == event_base + XFixesSelectionNotify) {
+        HandleClipboardChange();
+      }
+    }
+    std::this_thread::sleep_for(
+        std::chrono::milliseconds(kEventPollIntervalMs));
+  }
+
+  XFixesSelectSelectionInput(g_x11_display, event_window, g_clipboard_atom, 0);
+  XDestroyWindow(g_x11_display, event_window);
+  XCloseDisplay(g_x11_display);
+  g_x11_display = nullptr;
+}
+
+#else
+// Fallback to polling mode for other platforms
+static void MonitorThreadFunc() {
+  while (g_monitoring.load()) {
+    std::this_thread::sleep_for(std::chrono::milliseconds(g_check_interval_ms));
+    if (!g_monitoring.load()) {
+      break;
+    }
+    HandleClipboardChange();
+  }
+}
+#endif
+
+void Clipboard::StartMonitoring(int check_interval_ms,
+                                OnClipboardChanged on_changed) {
+  if (g_monitoring.load()) {
+    LOG_WARN("Clipboard monitoring is already running");
+    return;
+  }
+
+  g_check_interval_ms = check_interval_ms > 0 ? check_interval_ms : 100;
+  {
+    std::lock_guard<std::mutex> lock(g_monitor_mutex);
+    g_on_clipboard_changed = on_changed;
+    if (HasText()) {
+      g_last_clipboard_text = GetText();
+    } else {
+      g_last_clipboard_text.clear();
+    }
+  }
+  g_monitoring.store(true);
+
+  g_monitor_thread = std::thread(MonitorThreadFunc);
+  LOG_INFO("Clipboard event monitoring started");
+}
+
+void Clipboard::StopMonitoring() {
+  if (!g_monitoring.load()) {
+    return;
+  }
+
+  g_monitoring.store(false);
+
+#ifdef _WIN32
+  if (g_clipboard_wnd) {
+    PostMessage(g_clipboard_wnd, WM_QUIT, 0, 0);
+  }
+#elif __APPLE__
+  StopMacOSClipboardMonitoring();
+#endif
+
+  if (g_monitor_thread.joinable()) {
+    g_monitor_thread.join();
+  }
+
+  {
+    std::lock_guard<std::mutex> lock(g_monitor_mutex);
+    g_last_clipboard_text.clear();
+    g_on_clipboard_changed = nullptr;
+  }
+
+  LOG_INFO("Clipboard monitoring stopped");
+}
+
+bool Clipboard::IsMonitoring() { return g_monitoring.load(); }
+
+}  // namespace crossdesk
--- a/src/tools/clipboard.h
+++ b/src/tools/clipboard.h
@@ -0,0 +1,38 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2025-12-28
+ * Copyright (c) 2025 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _CLIPBOARD_H_
+#define _CLIPBOARD_H_
+
+#include <functional>
+#include <string>
+
+namespace crossdesk {
+
+class Clipboard {
+ public:
+  using OnClipboardChanged = std::function<int(const char* data, size_t size)>;
+
+  Clipboard() = default;
+  ~Clipboard() = default;
+
+  static std::string GetText();
+
+  static bool SetText(const std::string& text);
+
+  static bool HasText();
+
+  static void StartMonitoring(int check_interval_ms = 100,
+                              OnClipboardChanged on_changed = nullptr);
+
+  static void StopMonitoring();
+
+  static bool IsMonitoring();
+};
+
+}  // namespace crossdesk
+
+#endif
--- a/src/tools/clipboard_mac.mm
+++ b/src/tools/clipboard_mac.mm
@@ -0,0 +1,120 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2025-12-18
+ * Copyright (c) 2025 by DI JUNKUN, All Rights Reserved.
+ */
+
+#include "clipboard.h"
+
+#include <AppKit/AppKit.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include <atomic>
+#include <mutex>
+#include <string>
+#include <thread>
+
+#include "rd_log.h"
+
+namespace crossdesk {
+
+extern std::atomic<bool> g_monitoring;
+extern std::mutex g_monitor_mutex;
+extern std::string g_last_clipboard_text;
+extern Clipboard::OnClipboardChanged g_on_clipboard_changed;
+
+static CFRunLoopRef g_monitor_runloop = nullptr;
+
+std::string Clipboard::GetText() {
+  @autoreleasepool {
+    NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+    NSString* string = [pasteboard stringForType:NSPasteboardTypeString];
+    if (string == nil) {
+      return "";
+    }
+    return std::string([string UTF8String]);
+  }
+}
+
+bool Clipboard::SetText(const std::string& text) {
+  @autoreleasepool {
+    NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+    [pasteboard clearContents];
+    NSString* string = [NSString stringWithUTF8String:text.c_str()];
+    if (string == nil) {
+      LOG_ERROR("Clipboard::SetText: failed to create NSString");
+      return false;
+    }
+    BOOL success = [pasteboard setString:string forType:NSPasteboardTypeString];
+    return success == YES;
+  }
+}
+
+bool Clipboard::HasText() {
+  @autoreleasepool {
+    NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+    NSArray* types = [pasteboard types];
+    return [types containsObject:NSPasteboardTypeString];
+  }
+}
+
+extern void HandleClipboardChange();
+
+void StartMacOSClipboardMonitoring() {
+  @autoreleasepool {
+    NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
+
+    // Store RunLoop reference for waking up
+    NSRunLoop* runLoop = [NSRunLoop currentRunLoop];
+    g_monitor_runloop = [runLoop getCFRunLoop];
+    if (g_monitor_runloop) {
+      CFRetain(g_monitor_runloop);
+    }
+
+    // Track changeCount to detect clipboard changes
+    // Use __block to allow modification inside the block
+    __block NSInteger lastChangeCount = [pasteboard changeCount];
+
+    LOG_INFO("Clipboard event monitoring started (macOS)");
+
+    // Use a timer to periodically check changeCount
+    // This is more reliable than NSPasteboardDidChangeNotification which may not be available
+    NSTimer* timer =
+        [NSTimer scheduledTimerWithTimeInterval:0.1
+                                        repeats:YES
+                                          block:^(NSTimer* timer) {
+                                            if (!g_monitoring.load()) {
+                                              [timer invalidate];
+                                              return;
+                                            }
+                                            NSInteger currentChangeCount = [pasteboard changeCount];
+                                            if (currentChangeCount != lastChangeCount) {
+                                              lastChangeCount = currentChangeCount;
+                                              HandleClipboardChange();
+                                            }
+                                          }];
+
+    while (g_monitoring.load()) {
+      @autoreleasepool {
+        NSDate* date = [NSDate dateWithTimeIntervalSinceNow:0.1];
+        [runLoop runMode:NSDefaultRunLoopMode beforeDate:date];
+      }
+    }
+
+    // Cleanup
+    [timer invalidate];
+    if (g_monitor_runloop) {
+      CFRelease(g_monitor_runloop);
+      g_monitor_runloop = nullptr;
+    }
+  }
+}
+
+void StopMacOSClipboardMonitoring() {
+  // Wake up the RunLoop immediately so it can check g_monitoring and exit
+  // This ensures the RunLoop exits promptly instead of waiting up to 0.1 seconds
+  if (g_monitor_runloop) {
+    CFRunLoopWakeUp(g_monitor_runloop);
+  }
+}
+
+}  // namespace crossdesk
--- a/src/tools/file_transfer.cpp
+++ b/src/tools/file_transfer.cpp
@@ -0,0 +1,307 @@
+#include "file_transfer.h"
+
+#include <atomic>
+#include <chrono>
+
+#include "rd_log.h"
+
+namespace crossdesk {
+
+namespace {
+std::atomic<uint32_t> g_next_file_id{1};
+}  // namespace
+
+uint32_t FileSender::NextFileId() { return g_next_file_id.fetch_add(1); }
+
+int FileSender::SendFile(const std::filesystem::path& path,
+                         const std::string& label, const SendFunc& send,
+                         std::size_t chunk_size, uint32_t file_id) {
+  if (!send) {
+    LOG_ERROR("FileSender::SendFile: send function is empty");
+    return -1;
+  }
+
+  std::error_code ec;
+  if (!std::filesystem::exists(path, ec) ||
+      !std::filesystem::is_regular_file(path, ec)) {
+    LOG_ERROR("FileSender::SendFile: file [{}] not found or not regular",
+              path.string().c_str());
+    return -1;
+  }
+
+  uint64_t total_size = std::filesystem::file_size(path, ec);
+  if (ec) {
+    LOG_ERROR("FileSender::SendFile: failed to get size of [{}]: {}",
+              path.string().c_str(), ec.message().c_str());
+    return -1;
+  }
+
+  std::ifstream ifs(path, std::ios::binary);
+  if (!ifs.is_open()) {
+    LOG_ERROR("FileSender::SendFile: failed to open [{}]",
+              path.string().c_str());
+    return -1;
+  }
+  LOG_INFO("FileSender send file {}, total size {}, file_id={}",
+           path.string().c_str(), total_size, file_id);
+
+  if (file_id == 0) {
+    file_id = NextFileId();
+  }
+  const uint32_t final_file_id = file_id;
+  uint64_t offset = 0;
+  bool is_first = true;
+  std::string file_name = label.empty() ? path.filename().string() : label;
+
+  std::vector<char> buffer;
+  buffer.resize(chunk_size);
+
+  while (ifs && offset < total_size) {
+    uint64_t remaining = total_size - offset;
+    uint32_t to_read =
+        static_cast<uint32_t>(std::min<uint64_t>(remaining, chunk_size));
+
+    ifs.read(buffer.data(), static_cast<std::streamsize>(to_read));
+    std::streamsize bytes_read = ifs.gcount();
+    if (bytes_read <= 0) {
+      break;
+    }
+
+    bool is_last = (offset + static_cast<uint64_t>(bytes_read) >= total_size);
+    const std::string* name_ptr = is_first ? &file_name : nullptr;
+
+    std::vector<char> chunk = BuildChunk(
+        final_file_id, offset, total_size, buffer.data(),
+        static_cast<uint32_t>(bytes_read), name_ptr, is_first, is_last);
+
+    int ret = send(chunk.data(), chunk.size());
+    if (ret != 0) {
+      LOG_ERROR("FileSender::SendFile: send failed for [{}], ret={}",
+                path.string().c_str(), ret);
+      return ret;
+    }
+
+    offset += static_cast<uint64_t>(bytes_read);
+    is_first = false;
+  }
+
+  return 0;
+}
+
+std::vector<char> FileSender::BuildChunk(uint32_t file_id, uint64_t offset,
+                                         uint64_t total_size, const char* data,
+                                         uint32_t data_size,
+                                         const std::string* file_name,
+                                         bool is_first, bool is_last) {
+  FileChunkHeader header{};
+  header.magic = kFileChunkMagic;
+  header.file_id = file_id;
+  header.offset = offset;
+  header.total_size = total_size;
+  header.chunk_size = data_size;
+  header.name_len =
+      (file_name && is_first) ? static_cast<uint16_t>(file_name->size()) : 0;
+  header.flags = 0;
+  if (is_first) header.flags |= 0x01;
+  if (is_last) header.flags |= 0x02;
+
+  std::size_t total_size_bytes =
+      sizeof(FileChunkHeader) + header.name_len + header.chunk_size;
+
+  std::vector<char> buffer;
+  buffer.resize(total_size_bytes);
+
+  std::size_t offset_bytes = 0;
+  memcpy(buffer.data() + offset_bytes, &header, sizeof(FileChunkHeader));
+  offset_bytes += sizeof(FileChunkHeader);
+
+  if (header.name_len > 0 && file_name) {
+    memcpy(buffer.data() + offset_bytes, file_name->data(), header.name_len);
+    offset_bytes += header.name_len;
+  }
+
+  if (header.chunk_size > 0 && data) {
+    memcpy(buffer.data() + offset_bytes, data, header.chunk_size);
+  }
+
+  return buffer;
+}
+
+// ---------- FileReceiver ----------
+
+FileReceiver::FileReceiver() : output_dir_(GetDefaultDesktopPath()) {}
+
+FileReceiver::FileReceiver(const std::filesystem::path& output_dir)
+    : output_dir_(output_dir) {
+  std::error_code ec;
+  if (!output_dir_.empty()) {
+    std::filesystem::create_directories(output_dir_, ec);
+    if (ec) {
+      LOG_ERROR("FileReceiver: failed to create output dir [{}]: {}",
+                output_dir_.string().c_str(), ec.message().c_str());
+    }
+  }
+}
+
+std::filesystem::path FileReceiver::GetDefaultDesktopPath() {
+#ifdef _WIN32
+  const char* home_env = std::getenv("USERPROFILE");
+#else
+  const char* home_env = std::getenv("HOME");
+#endif
+  if (!home_env) {
+    return std::filesystem::path{};
+  }
+
+  std::filesystem::path desktop_path =
+      std::filesystem::path(home_env) / "Desktop";
+
+  std::error_code ec;
+  std::filesystem::create_directories(desktop_path, ec);
+  if (ec) {
+    LOG_ERROR("FileReceiver: failed to create desktop directory [{}]: {}",
+              desktop_path.string().c_str(), ec.message().c_str());
+  }
+
+  return desktop_path;
+}
+
+bool FileReceiver::OnData(const char* data, size_t size) {
+  if (!data || size < sizeof(FileChunkHeader)) {
+    LOG_ERROR("FileReceiver::OnData: invalid buffer");
+    return false;
+  }
+
+  FileChunkHeader header{};
+  memcpy(&header, data, sizeof(FileChunkHeader));
+
+  if (header.magic != kFileChunkMagic) {
+    return false;
+  }
+
+  std::size_t header_and_name =
+      sizeof(FileChunkHeader) + static_cast<std::size_t>(header.name_len);
+  if (size < header_and_name ||
+      size < header_and_name + static_cast<std::size_t>(header.chunk_size)) {
+    LOG_ERROR("FileReceiver::OnData: buffer too small for header + payload");
+    return false;
+  }
+
+  const char* name_ptr = data + sizeof(FileChunkHeader);
+  std::string file_name;
+  const std::string* file_name_ptr = nullptr;
+  if (header.name_len > 0) {
+    file_name.assign(name_ptr,
+                     name_ptr + static_cast<std::size_t>(header.name_len));
+    file_name_ptr = &file_name;
+  }
+
+  const char* payload = data + header_and_name;
+  std::size_t payload_size =
+      static_cast<std::size_t>(header.chunk_size);  // may be 0
+
+  return HandleChunk(header, payload, payload_size, file_name_ptr);
+}
+
+bool FileReceiver::HandleChunk(const FileChunkHeader& header,
+                               const char* payload, size_t payload_size,
+                               const std::string* file_name) {
+  auto it = contexts_.find(header.file_id);
+  if (it == contexts_.end()) {
+    // new file context must start with first chunk.
+    if ((header.flags & 0x01) == 0) {
+      LOG_ERROR("FileReceiver: received non-first chunk for unknown file_id={}",
+                header.file_id);
+      return false;
+    }
+
+    FileContext ctx;
+    ctx.total_size = header.total_size;
+
+    std::string filename;
+    if (file_name && !file_name->empty()) {
+      filename = *file_name;
+    } else {
+      filename = "received_" + std::to_string(header.file_id);
+    }
+
+    ctx.file_name = filename;
+
+    std::filesystem::path save_path = output_dir_.empty()
+                                          ? std::filesystem::path(filename)
+                                          : output_dir_ / filename;
+
+    // if file exists, append timestamp.
+    std::error_code ec;
+    if (std::filesystem::exists(save_path, ec)) {
+      auto now = std::chrono::system_clock::now();
+      auto ts = std::chrono::duration_cast<std::chrono::milliseconds>(
+                    now.time_since_epoch())
+                    .count();
+      save_path = save_path.parent_path() /
+                  (save_path.stem().string() + "_" + std::to_string(ts) +
+                   save_path.extension().string());
+    }
+
+    ctx.ofs.open(save_path, std::ios::binary | std::ios::trunc);
+    if (!ctx.ofs.is_open()) {
+      LOG_ERROR("FileReceiver: failed to open [{}] for writing",
+                save_path.string().c_str());
+      return false;
+    }
+
+    contexts_.emplace(header.file_id, std::move(ctx));
+    it = contexts_.find(header.file_id);
+  }
+
+  FileContext& ctx = it->second;
+
+  if (payload_size > 0 && payload) {
+    ctx.ofs.seekp(static_cast<std::streamoff>(header.offset), std::ios::beg);
+    ctx.ofs.write(payload, static_cast<std::streamsize>(payload_size));
+    if (!ctx.ofs.good()) {
+      LOG_ERROR("FileReceiver: write failed for file_id={}", header.file_id);
+      return false;
+    }
+    ctx.received += static_cast<uint64_t>(payload_size);
+  }
+
+  // Send ACK after processing chunk
+  if (on_send_ack_) {
+    FileTransferAck ack{};
+    ack.magic = kFileAckMagic;
+    ack.file_id = header.file_id;
+    ack.acked_offset = header.offset + static_cast<uint64_t>(payload_size);
+    ack.total_size = header.total_size;
+    ack.flags = 0;
+
+    bool is_last = (header.flags & 0x02) != 0;
+    if (is_last || ctx.received >= ctx.total_size) {
+      ack.flags |= 0x01;  // completed
+    }
+
+    int ret = on_send_ack_(ack);
+    if (ret != 0) {
+      LOG_ERROR("FileReceiver: failed to send ACK for file_id={}, ret={}",
+                header.file_id, ret);
+    }
+  }
+
+  bool is_last = (header.flags & 0x02) != 0;
+  if (is_last || ctx.received >= ctx.total_size) {
+    ctx.ofs.close();
+
+    std::filesystem::path saved_path =
+        output_dir_.empty() ? std::filesystem::path(ctx.file_name)
+                            : output_dir_ / ctx.file_name;
+
+    LOG_INFO("FileReceiver: file received complete, file_id={}, size={}",
+             header.file_id, ctx.received);
+
+    contexts_.erase(header.file_id);
+  }
+
+  return true;
+}
+
+}  // namespace crossdesk
--- a/src/tools/file_transfer.h
+++ b/src/tools/file_transfer.h
@@ -0,0 +1,122 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2025-12-18
+ * Copyright (c) 2025 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _FILE_TRANSFER_H_
+#define _FILE_TRANSFER_H_
+
+#include <cstdint>
+#include <filesystem>
+#include <fstream>
+#include <functional>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+namespace crossdesk {
+
+// Magic constants for file transfer protocol
+constexpr uint32_t kFileChunkMagic = 0x4A4E544D;  // 'JNTM'
+constexpr uint32_t kFileAckMagic = 0x4A4E5443;    // 'JNTC'
+
+#pragma pack(push, 1)
+struct FileChunkHeader {
+  uint32_t magic;       // magic to identify file-transfer chunks
+  uint32_t file_id;     // unique id per file transfer
+  uint64_t offset;      // offset in file
+  uint64_t total_size;  // total file size
+  uint32_t chunk_size;  // payload size in this chunk
+  uint16_t name_len;    // filename length (bytes), only set on first chunk
+  uint8_t flags;        // bit0: is_first, bit1: is_last, others reserved
+};
+
+struct FileTransferAck {
+  uint32_t magic;         // magic to identify file-transfer ack
+  uint32_t file_id;       // must match FileChunkHeader.file_id
+  uint64_t acked_offset;  // received offset
+  uint64_t total_size;    // total file size
+  uint32_t flags;         // bit0: completed, bit1: error
+};
+#pragma pack(pop)
+
+class FileSender {
+ public:
+  using SendFunc = std::function<int(const char* data, size_t size)>;
+
+ public:
+  FileSender() = default;
+
+  // generate a new file id
+  static uint32_t NextFileId();
+
+  // synchronously send a file using the provided send function.
+  // `path`  : full path to the local file.
+  // `label` : logical filename to send (usually path.filename()).
+  // `send`  : callback that pushes one encoded chunk into the data channel.
+  // `file_id` : file id to use (0 means auto-generate).
+  // Return 0 on success, <0 on error.
+  int SendFile(const std::filesystem::path& path, const std::string& label,
+               const SendFunc& send, std::size_t chunk_size = 64 * 1024,
+               uint32_t file_id = 0);
+
+  // build a single encoded chunk buffer according to FileChunkHeader protocol.
+  static std::vector<char> BuildChunk(uint32_t file_id, uint64_t offset,
+                                      uint64_t total_size, const char* data,
+                                      uint32_t data_size,
+                                      const std::string* file_name,
+                                      bool is_first, bool is_last);
+};
+
+class FileReceiver {
+ public:
+  struct FileContext {
+    std::string file_name;
+    uint64_t total_size = 0;
+    uint64_t received = 0;
+    std::ofstream ofs;
+  };
+
+  using OnFileComplete =
+      std::function<void(const std::filesystem::path& saved_path)>;
+  using OnSendAck = std::function<int(const FileTransferAck& ack)>;
+
+ public:
+  // save to default desktop directory.
+  FileReceiver();
+
+  // save to a specified directory.
+  explicit FileReceiver(const std::filesystem::path& output_dir);
+
+  // process one received data buffer (one chunk).
+  // return true if parsed and processed successfully, false otherwise.
+  bool OnData(const char* data, size_t size);
+
+  void SetOnSendAck(OnSendAck cb) { on_send_ack_ = cb; }
+
+  const std::filesystem::path& OutputDir() const { return output_dir_; }
+
+  void SetOutputDir(const std::filesystem::path& dir) {
+    output_dir_ = dir;
+    if (!output_dir_.empty()) {
+      std::error_code ec;
+      std::filesystem::create_directories(output_dir_, ec);
+    }
+  }
+
+ private:
+  static std::filesystem::path GetDefaultDesktopPath();
+
+  bool HandleChunk(const FileChunkHeader& header, const char* payload,
+                   size_t payload_size, const std::string* file_name);
+
+ private:
+  std::filesystem::path output_dir_;
+  std::unordered_map<uint32_t, FileContext> contexts_;
+  OnSendAck on_send_ack_ = nullptr;
+};
+
+}  // namespace crossdesk
+
+#endif
--- a/src/version_checker/version_checker.cpp
+++ b/src/version_checker/version_checker.cpp
@@ -4,19 +4,15 @@
 * Copyright (c) 2025 by DI JUNKUN, All Rights Reserved.
 */

-#ifndef _VERSION_CHECKER_H_
-#define _VERSION_CHECKER_H_
+#include "version_checker.h"

 #include <httplib.h>

 #include <iostream>
-#include <nlohmann/json.hpp>
 #include <sstream>
 #include <string>
 #include <vector>

-using json = nlohmann::json;
-
 namespace crossdesk {

 static std::string latest_release_date_ = "";
@@ -129,7 +125,7 @@ bool IsNewerVersionWithDate(const std::string& current_version,
  return false;
 }

-std::string CheckUpdate() {
+nlohmann::json CheckUpdate() {
  httplib::Client cli("https://version.crossdesk.cn");

  cli.set_connection_timeout(5);
@@ -138,28 +134,25 @@ std::string CheckUpdate() {
  if (auto res = cli.Get("/version.json")) {
    if (res->status == 200) {
      try {
-        auto j = json::parse(res->body);
-        std::string latest = j["version"];
+        auto j = nlohmann::json::parse(res->body);
        if (j.contains("releaseDate") && j["releaseDate"].is_string()) {
          latest_release_date_ = j["releaseDate"];
        } else {
          latest_release_date_ = "";
        }
-        return latest;
+        return j;
      } catch (std::exception&) {
        latest_release_date_ = "";
-        return "";
+        return nlohmann::json{};
      }
    } else {
      latest_release_date_ = "";
-      return "";
+      return nlohmann::json{};
    }
  } else {
    latest_release_date_ = "";
-    return "";
+    return nlohmann::json{};
  }
 }

-std::string GetLatestReleaseDate() { return latest_release_date_; }
-}  // namespace crossdesk
-#endif
+}  // namespace crossdesk
--- a/src/version_checker/version_checker.h
+++ b/src/version_checker/version_checker.h
@@ -7,11 +7,12 @@
 #ifndef _VERSION_CHECKER_H_
 #define _VERSION_CHECKER_H_

+#include <nlohmann/json.hpp>
 #include <string>

 namespace crossdesk {

-std::string CheckUpdate();
+nlohmann::json CheckUpdate();

 bool IsNewerVersion(const std::string& current, const std::string& latest);

--- a/submodules/minirtc
+++ b/submodules/minirtc
--- a/xmake.lua
+++ b/xmake.lua
@@ -28,24 +28,26 @@ if is_mode("debug") then
    add_defines("CROSSDESK_DEBUG")
 end

+add_requireconfs("*.python", {version = "3.12", override = true, configs = {pgo = false}})
 add_requires("spdlog 1.14.1", {system = false})
-add_requires("imgui v1.91.5-docking", {configs = {sdl3 = true, sdl3_renderer = true}})
+add_requires("imgui v1.92.1-docking", {configs = {sdl3 = true, sdl3_renderer = true}})
 add_requires("openssl3 3.3.2", {system = false})
 add_requires("nlohmann_json 3.11.3")
 add_requires("cpp-httplib v0.26.0", {configs = {ssl = true}})
+add_requires("tinyfiledialogs 3.15.1")

 if is_os("windows") then
    add_requires("libyuv", "miniaudio 0.11.21")
-    add_links("Shell32", "windowsapp", "dwmapi", "User32", "kernel32",
+    add_links("Shell32", "dwmapi", "User32", "kernel32",
        "SDL3-static", "gdi32", "winmm", "setupapi", "version",
-        "Imm32", "iphlpapi")
+        "Imm32", "iphlpapi", "d3d11", "dxgi")
    add_cxflags("/WX")
    set_runtimes("MT")
 elseif is_os("linux") then
    add_links("pulse-simple", "pulse")
    add_requires("libyuv") 
    add_syslinks("pthread", "dl")
-    add_links("SDL3", "asound", "X11", "Xtst", "Xrandr")
+    add_links("SDL3", "asound", "X11", "Xtst", "Xrandr", "Xfixes")
    add_cxflags("-Wno-unused-variable")   
 elseif is_os("macosx") then
    add_links("SDL3")
@@ -69,6 +71,9 @@ target("common")
    set_kind("object")
    add_deps("rd_log")
    add_files("src/common/*.cpp")
+    if is_os("macosx") then
+        add_files("src/common/*.mm")
+    end
    add_includedirs("src/common", {public = true})

 target("path_manager")
@@ -84,7 +89,9 @@ target("screen_capturer")
    add_includedirs("src/screen_capturer", {public = true})
    if is_os("windows") then
        add_packages("libyuv")
-        add_files("src/screen_capturer/windows/*.cpp")
+        add_files("src/screen_capturer/windows/screen_capturer_dxgi.cpp",
+            "src/screen_capturer/windows/screen_capturer_gdi.cpp",
+            "src/screen_capturer/windows/screen_capturer_win.cpp")
        add_includedirs("src/screen_capturer/windows", {public = true})
    elseif is_os("macosx") then
        add_files("src/screen_capturer/macosx/*.cpp",
@@ -168,13 +175,22 @@ target("version_checker")
    add_files("src/version_checker/*.cpp")
    add_includedirs("src/version_checker", {public = true})

+target("tools")
+    set_kind("object")
+    add_deps("rd_log")
+    add_files("src/tools/*.cpp")
+    if is_os("macosx") then
+        add_files("src/tools/*.mm")
+    end
+    add_includedirs("src/tools", {public = true})
+
 target("gui")
    set_kind("object")
-    add_packages("libyuv")
+    add_packages("libyuv", "tinyfiledialogs")
    add_defines("CROSSDESK_VERSION=\"" .. (get_config("CROSSDESK_VERSION") or "Unknown") .. "\"")
    add_deps("rd_log", "common", "assets", "config_center", "minirtc", 
        "path_manager", "screen_capturer", "speaker_capturer", 
-        "device_controller", "thumbnail", "version_checker")
+        "device_controller", "thumbnail", "version_checker", "tools")
    add_files("src/gui/*.cpp", "src/gui/panels/*.cpp", "src/gui/toolbars/*.cpp",
        "src/gui/windows/*.cpp")
    add_includedirs("src/gui", "src/gui/panels", "src/gui/toolbars",
@@ -182,10 +198,30 @@ target("gui")
    if is_os("windows") then
        add_files("src/gui/tray/*.cpp")
        add_includedirs("src/gui/tray", {public = true})
+    elseif is_os("macosx") then
+        add_files("src/gui/windows/*.mm")
    end

+if is_os("windows") then
+target("wgc_plugin")
+    set_kind("shared")
+    add_packages("libyuv")
+    add_deps("rd_log")
+    add_defines("CROSSDESK_WGC_PLUGIN_BUILD=1")
+    add_links("windowsapp")
+    add_files("src/screen_capturer/windows/screen_capturer_wgc.cpp",
+        "src/screen_capturer/windows/wgc_session_impl.cpp",
+        "src/screen_capturer/windows/wgc_plugin_entry.cpp")
+    add_includedirs("src/common", "src/screen_capturer",
+        "src/screen_capturer/windows")
+end
+
 target("crossdesk")
    set_kind("binary")
    add_deps("rd_log", "common", "gui")
    add_files("src/app/*.cpp")
-    add_includedirs("src/app", {public = true})
+    add_includedirs("src/app", {public = true})
+    if is_os("windows") then
+        add_deps("wgc_plugin")
+        add_files("scripts/windows/crossdesk.rc")
+    end
Author	SHA1	Message	Date
dijunkun	43d03ac081	[fix] fix font path lookup for wqy/dejavu by switching from OpenType to TrueType	2026-03-22 00:39:19 +08:00
dijunkun	f7f62c5fe0	[fix] update MiniRTC: refactor IceAgent to improve stability	2026-03-20 15:58:59 +08:00
dijunkun	2bbddbca6b	[fix] fix Linux audio fallback when audio devices are unavaliable	2026-03-20 15:14:45 +08:00
dijunkun	f0f8f27f4c	[fix] fix blocking join() in Linux clipboard monitor thread during shutdown	2026-03-20 15:02:34 +08:00
dijunkun	262af263f2	[fix] move keyboard capturer to a background thread and use poll-based X11 event handling to avoid main-thread blocking	2026-03-20 14:56:40 +08:00
dijunkun	38b7775b1b	[fix] fix restart/shutdown races in process monitor	2026-03-20 14:50:42 +08:00
dijunkun	56c0bca62f	[chore] adjust hyperlink spacing and alignment	2026-03-20 14:47:33 +08:00
dijunkun	4b1b09fd5b	[fix] fix Linux fonts: use opentype instead of truetype	2026-03-20 13:01:13 +08:00
dijunkun	1d6425bbf4	[fix] update MiniRTC: fix compiler warnings by adding missing override specifiers	2026-03-20 04:36:58 +08:00
dijunkun	5ec6552d25	[fix] fix macOS intel CI build failure caused by python 3.13 PGO mismatch	2026-03-20 03:50:19 +08:00
dijunkun	79e4a0790a	[fix] fix issue where wgc_plugin was not compiled	2026-03-20 02:59:31 +08:00
dijunkun	1d3cac54ab	[feat] load wgc from wgc_plugin.dll at runtime and drop direct'windowsapp' linking, refs #74	2026-03-20 01:36:36 +08:00
dijunkun	2f26334775	[feat] unify UI font loading across platforms and prefer PingFang on macOS	2026-03-19 21:58:14 +08:00
dijunkun	9270d528e3	[feat] update miniRTC: fix compiler warnings caused by missing override specifiers	2026-03-19 21:57:52 +08:00
dijunkun	91db3a7e34	[feat] add Russian language support	2026-03-19 20:04:30 +08:00
dijunkun	d017561e54	[fix] fix typo ImGuiChildFlags_Border to ImGuiChildFlags_Borders	2026-03-19 16:16:51 +08:00
dijunkun	8e8a85bae3	[feat] upgrade actions/checkout and actions/cache to v5 for Node 24 compatibility	2026-03-19 15:03:58 +08:00
dijunkun	bea89e9111	[feat] crossdesk server image supports Linux ARM64, refs #72	2026-03-19 10:06:57 +08:00
dijunkun	499ce0190a	[fix] process mouse events only from the stream window	2026-03-11 16:00:29 +08:00
dijunkun	91bde91238	[feat] probe presence before connect and show warning if offline	2026-03-10 17:46:44 +08:00
dijunkun	3e31ba102d	[fix] prevent sending connection requests to offline devices	2026-03-10 10:53:58 +08:00
dijunkun	263c5eefd3	[fix] fix update button lag in release mode by using non-blocking URL opener.	2026-03-10 10:39:05 +08:00
dijunkun	b230b851e4	[fix] fix cannot close connection from Server Window when the peer is a web client	2026-03-10 00:39:00 +08:00
dijunkun	ff32477ffe	[fix] update MiniRTC: fix crash on disconnect	2026-03-10 00:35:33 +08:00
dijunkun	c6c60decdb	[fix] fix incorrect online status of recently connections	2026-03-09 22:52:05 +08:00
dijunkun	7505adeca8	[feat] update MiniRTC	2026-03-09 22:50:42 +08:00
dijunkun	754f1fba88	[feat] show 'Receiving screen' text before the remote frame arrives	2026-03-09 22:37:50 +08:00
dijunkun	8be46b870a	[feat] add cancel button during connecting	2026-03-09 21:35:21 +08:00
dijunkun	81cb1d6c0b	[fix] disable clipboard sharing when not in control mode	2026-03-05 17:46:27 +08:00
dijunkun	319416f1b7	[feat] update MiniRTC: optimize video quality and smoothness	2026-03-05 17:30:05 +08:00
dijunkun	d679c6251b	[feat] update MiniRTC	2026-03-04 10:46:21 +08:00
dijunkun	a14baafda7	[fix] fix keyboard event loss due to start_keyboard_capturer_ flag improper setting, fixes #65	2026-03-04 10:36:39 +08:00
dijunkun	cfdc7d3106	[fix] update MiniRTC: fix bandwidth degradation caused by ALR-triggered resolution downgrade during static frames	2026-03-03 10:58:38 +08:00
dijunkun	33d51b8ce5	[fix] reset to initial monitor on connection close via ResetToInitialMonitor to fix black screen	2026-03-02 15:42:44 +08:00
dijunkun	b13dac2093	[feat] refine display of recent connections presence tooltip	2026-03-02 10:48:16 +08:00
dijunkun	a605c95e5a	[fix] fix window rounding inconsistency under different DPI scales	2026-03-02 10:38:06 +08:00
dijunkun	9a5553a636	[chore] update fonts	2026-03-02 10:17:06 +08:00
dijunkun	ef02403da6	[fix] fix incorrect sizing of the online status indicator on high-DPI displays	2026-03-01 16:47:09 +08:00
dijunkun	adfab363c1	[feat] add online presence check before connecting and show offline warning dialog	2026-03-01 16:29:11 +08:00
dijunkun	123d4cf595	[fix] update MiniRTC: fix the macOS hardware decode fail when the server using openH264 encode	2026-03-01 15:40:50 +08:00
dijunkun	19feb8ff49	[feat] show device online/offline status in recent connection tooltip	2026-02-28 17:25:41 +08:00
dijunkun	9223bf9d2d	[feat] add online status indicators for recent connections	2026-02-28 17:06:44 +08:00
dijunkun	11b5f87841	[feat] update MiniRTC: add signaling send/receive API support	2026-02-28 17:04:47 +08:00
dijunkun	cea59fb453	[feat] update MiniRTC	2026-02-27 17:53:51 +08:00
ZongYangBigPolo	3a179bf480	[feat] add macOS installer icon and optimize packaging script (#70 )	2026-02-27 17:37:54 +08:00
dijunkun	b9c53024f1	[feat] set video quality to HIGH and enable hardware codec by default	2026-02-27 17:24:04 +08:00
dijunkun	62b37ad698	[fix] resolve failures in the WGC→DXGI→GDI fallback chain	2026-02-27 16:33:57 +08:00
dijunkun	de56cd5d3b	[feat] update MiniRTC	2026-02-27 16:30:08 +08:00
dijunkun	8d9d78185a	[fix] fix issue where client display list was incorrectly merged into the server display list	2026-02-27 16:27:37 +08:00
dijunkun	b10a6512fe	[feat] add Windows DXGI/GDI screen capture with WGC→DXGI→GDI fallback support	2026-02-27 13:55:41 +08:00
dijunkun	a94da8802f	[feat] make MainWindow and ServerWindow use rounded corners	2026-02-26 18:06:07 +08:00
dijunkun	4e6f82d00c	[feat] restrict the dragging range of the ControlWindow	2026-02-26 15:55:04 +08:00
dijunkun	5e2ad99ec0	[feat] update MiniRTC to resolve color distortion in the OpenH264 decoder	2026-02-25 17:48:30 +08:00
dijunkun	8ab50ea362	[feat] add video resolution and conection mode in NetTrafficStats window	2026-02-25 15:33:17 +08:00
dijunkun	25e9958a69	Merge branch 'file-transfer' of https://github.com/kunkundi/crossdesk into file-transfer	2026-02-24 17:56:21 +08:00
dijunkun	410ea8b96b	[feat] update MiniRTC	2026-02-24 17:56:02 +08:00
dijunkun	e656664cad	[chore] adjust file transfer save path button pos	2026-02-24 14:36:03 +08:00
dijunkun	0e6cee0961	[fix] fix stream window rendering height	2026-02-24 14:31:34 +08:00
dijunkun	42506b8c1d	[ci] combine Linux amd64 and arm64 builds into a single job using matrix	2026-02-13 02:31:58 +08:00
dijunkun	e35365d162	[feat] disable and style minimize_to_tray checkbox for non-Windows platforms	2026-02-13 02:29:52 +08:00
dijunkun	bf1c0f796d	[fix] fix Linux system certificate loading failure	2026-02-13 01:56:49 +08:00
dijunkun	547532b28c	[fix] fix server window scaling issues on high-DPI displays	2026-02-13 01:26:10 +08:00
dijunkun	a91e23abf6	[fix] fix raw pointer issues when closing connections	2026-02-13 01:12:21 +08:00
dijunkun	2b324f636b	[fix] fix macOS system certificate loading failure	2026-02-12 22:49:54 +08:00
dijunkun	103b8372e4	[chore] rename packaged executable to CrossDesk.exe in NSIS and portable artifacts	2026-02-12 16:45:41 +08:00
dijunkun	f7f1724bf1	[feat] optimize hyperlink opening by replacing system start with CreateProcessW-based URL launch on Winodws	2026-02-12 16:22:57 +08:00
dijunkun	5d70e11f17	[feat] support Windows x64 portable build, refs #54	2026-02-12 16:03:06 +08:00
dijunkun	fb7ae90d46	[feat] add configurable file transfer save path in settings window, refs #63	2026-02-12 14:30:14 +08:00
dijunkun	957792a7a0	[feat] remove client certificate dependency	2026-02-11 16:23:43 +08:00
dijunkun	2e8ce6a2f0	[fix] reset default cert fingerprint if mismatch	2026-02-05 18:59:28 +08:00
dijunkun	9927a56b78	[feat] update MiniRTC	2026-02-05 18:05:35 +08:00
dijunkun	db3da52f83	[feat] clear cached fingerprint when verification fails	2026-02-05 17:15:59 +08:00
dijunkun	19a7c6978a	[feat] update MiniRTC to resolve websocket reconnection and post task issues	2026-01-28 09:45:19 +08:00
dijunkun	b5e9ba03a1	[fix] double-buffer video frames and handle stream cleanup on main thread	2026-01-28 09:44:54 +08:00
dijunkun	cb5f8b91ad	[feat] update update-notification icon	2026-01-27 21:11:26 +08:00
dijunkun	f627f60f1a	[feat] use tooltips to display server-side file transfer status information	2026-01-27 17:50:21 +08:00
dijunkun	e9fce5b8b8	[feat] display remote controller hostname instead of remote id	2026-01-26 22:52:58 +08:00
dijunkun	a7820a79db	[fix] fix incorrect peer_ usage in SendReliableDataFrame	2026-01-26 21:47:10 +08:00
dijunkun	b6a52dbcd4	[feat] add support for displaying multiple controller info and file transfer to controllers	2026-01-26 17:47:31 +08:00
dijunkun	7bbd10a50c	[fix] fix rendering issues in stream and server windows when the main window is minimized	2026-01-22 17:56:00 +08:00
dijunkun	ee08b231db	[fix] fix height when server window is restored from collapsed state	2026-01-20 23:58:43 +08:00
dijunkun	619e54dc0e	[feat] add controller info and file transfer in server window	2026-01-20 21:22:20 +08:00
dijunkun	9b69596af1	[fix] fix stream window size recalculation	2026-01-20 01:33:27 +08:00
dijunkun	f6e169c013	[feat] add support for server window resizing and dragging	2026-01-20 01:22:14 +08:00
dijunkun	fd242d50c1	[feat] show server window in the bottom-right corner of the screen	2026-01-19 17:42:22 +08:00
dijunkun	d6d8ecd6c5	[feat] add server window	2026-01-19 00:47:34 +08:00
dijunkun	669fac7f50	[feat] support drag-and-drop file sending, refs #63	2026-01-14 18:13:22 +08:00
dijunkun	92d670916e	[fix] fix incorrect data send function used for control data	2026-01-13 18:13:54 +08:00
dijunkun	0155413c12	[feat] use reliable transmission to send control info	2026-01-12 17:28:19 +08:00
dijunkun	8468be6532	[fix] update MiniRTC	2026-01-12 17:27:49 +08:00
dijunkun	78c82f778a	[chore] remove SetOnFileComplete() in class FileReceiver	2025-12-29 12:48:14 +08:00
dijunkun	ab89a3d41a	[fix] fix clipboard copy from remote device to controller	2025-12-29 12:46:19 +08:00
dijunkun	5f320af6e6	[fix] fix macOS clipboard monitoring compilation error using changeCount polling	2025-12-29 01:01:08 +08:00
dijunkun	17b7ba6b72	[feat] support clipboard sharing, refs #35	2025-12-29 00:53:14 +08:00
dijunkun	c70ebdfe15	[fix] correct file send rate calculation by using data channel feedback	2025-12-29 00:53:14 +08:00
dijunkun	a3e564f160	[feat] support multi-file transfer, refs #45	2025-12-29 00:52:58 +08:00
dijunkun	eea37424c9	[feat] use receiver ack to calculate file transfer progress	2025-12-25 18:13:18 +08:00
dijunkun	b322181853	[feat] add file transfer window to show file sending info	2025-12-24 18:12:50 +08:00
dijunkun	3ad66f5e0b	[fix] fix file transfer	2025-12-24 01:45:59 +08:00
dijunkun	4035e0dd13	[feat] upgrade MiniRTC and expose source ID in data callbacks	2025-12-23 00:53:47 +08:00
dijunkun	832b820096	[fix] update MiniRTC to latest version and add logging for sent file size	2025-12-22 18:33:53 +08:00
dijunkun	d337971de0	[feat] update MiniRTC api calling	2025-12-19 18:22:34 +08:00
dijunkun	a967dc72d7	[feat] use SendReliableDataFrame() instead of SendDataFrame()	2025-12-19 01:46:16 +08:00
dijunkun	5066fcda48	[feat] implement file transfer module	2025-12-18 18:30:51 +08:00
dijunkun	e7bdf42694	[feat] add file transfer button to control bar	2025-12-18 01:54:03 +08:00
dijunkun	875fea88ee	[chore] adjust main window title font size	2025-12-18 01:32:38 +08:00
dijunkun	b2654ea9db	[feat] use fingerprint-based verification for both default and self-hosted servers	2025-12-10 03:46:03 +08:00
dijunkun	8f8e415262	[chore] update README	2025-12-10 03:38:05 +08:00
dijunkun	5ff624f7b2	[feat] use fingerprint-based verification for TLS connection	2025-12-10 03:28:28 +08:00
dijunkun	e09243f1ec	[chore] update README	2025-12-10 00:23:04 +08:00
dijunkun	f5941c7eda	[chore] update README	2025-12-10 00:20:26 +08:00
dijunkun	3c2ebe602e	[fix] do not save password info into logs	2025-12-10 00:20:10 +08:00
dijunkun	2f64172ead	[feat] use new client id and password if server switched	2025-12-10 00:09:49 +08:00
Junkun Di	a83206a346	[ci] update issue templates	2025-12-09 17:50:57 +08:00
dijunkun	46e769976f	[chore] update README	2025-12-09 00:36:00 +08:00
dijunkun	58c24b798e	[chore] update README: refresh self-hosted server setup guide	2025-12-09 00:19:25 +08:00
dijunkun	5cc31e5ba3	[fix] fix self-hosted server configuration being reset when disabling self-hosted mode	2025-12-08 18:27:18 +08:00
dijunkun	74fe9bebf5	[fix] fix server settings window height	2025-12-08 17:42:02 +08:00
dijunkun	1f6a2182be	[fix] resolve tab bar dragging issue	2025-12-06 18:46:04 +08:00
dijunkun	1a883f0d6c	[fix] fix menu BeginPopup & EndPopup pairing	2025-12-05 17:53:17 +08:00
dijunkun	a560b4ca70	[feat] make thumbnail save asynchronous to prevent UI blocking	2025-12-05 17:07:55 +08:00
dijunkun	46f45ed216	[fix] fix tab close button not working in stream window	2025-12-05 15:18:35 +08:00
dijunkun	5c23f1c5e8	[fix] correct tab bar scaling and layout	2025-12-05 15:17:07 +08:00
dijunkun	70ae02549f	[fix] correct title bar display	2025-12-05 04:28:33 +08:00
dijunkun	68de995c64	[fix] correct hardware codec setting item display	2025-12-05 00:57:33 +08:00
dijunkun	ed5ddb96fd	[refactor] update notification window rendering for high-DPI scaling support	2025-12-04 19:00:37 +08:00
dijunkun	436dfafc2a	[refactor] update about window rendering for high-DPI scaling support	2025-12-04 17:51:03 +08:00
dijunkun	5221b193e5	[refactor] update settings window rendering for high-DPI scaling support	2025-12-04 17:23:14 +08:00
dijunkun	fafced23c2	[refactor] update stream window rendering for high-DPI scaling support	2025-12-04 02:11:06 +08:00
dijunkun	1e48b645ca	[refactor] update recent connections panel rendering for high-DPI scaling support	2025-12-04 00:14:09 +08:00
dijunkun	49ed0200e7	[refactor] update connection status window rendering for high-DPI scaling support	2025-12-03 21:54:10 +08:00
dijunkun	24873afe64	[refactor] update remote peer panel rendering for high-DPI scaling support	2025-12-03 21:17:11 +08:00
dijunkun	d21e1bd422	[refactor] update remote peer panel rendering for high-DPI scaling support	2025-12-03 17:36:19 +08:00
dijunkun	be044c248b	[refactor] update local peer panel rendering for high-DPI scaling support	2025-12-03 17:12:35 +08:00
dijunkun	49cbbc3363	[refactor] update status bar rendering for high-DPI scaling support	2025-12-03 12:45:01 +08:00
dijunkun	1e20cb806b	[refactor] update title bar rendering for high-DPI scaling support	2025-12-03 04:20:49 +08:00
dijunkun	2e52818f6f	fix: correct array deletion and improve state management in WGC screen capturer	2025-12-01 23:06:46 +08:00
dijunkun	b50f386713	[fix] fix system_chinese_font_ usage to avoid dangling font pointer after closing stream window	2025-12-01 23:03:45 +08:00
dijunkun	280e011ae4	[fix] update RecentConnectionsWindow layout	2025-12-01 17:16:28 +08:00
dijunkun	8d09bf53c3	[fix] fix UpdateNotificationWindow dpi scaling	2025-12-01 13:52:39 +08:00
dijunkun	131b4f1795	[fix] resolve compilation errors on Linux	2025-12-01 13:07:36 +08:00
dijunkun	7d3ecf789d	[fix] fix control bar dpi scaling	2025-12-01 11:30:35 +08:00
dijunkun	37797bf873	[fix] fix DPI scaling issues	2025-12-01 04:54:30 +08:00
dijunkun	91d42b6561	[fix] macOS: fix audio capture, refs #29	2025-11-30 17:13:02 +08:00
dijunkun	feb9f2f460	[revert] revert to the pre-lock version	2025-11-28 11:44:08 +08:00
Junkun Di	9c1753c78c	[chroe] add issue templates	2025-11-28 11:34:22 +08:00
dijunkun	7370ff5b30	[chore] add HelloGitHub badge	2025-11-28 11:10:41 +08:00
dijunkun	f6eda34dbd	[fix] fix dead lock during connecting	2025-11-28 10:02:57 +08:00
dijunkun	5d9a0a3ea5	[fix] fix dead lock during peer init	2025-11-28 09:32:21 +08:00
dijunkun	3d8249bffa	[fix] use lock and null pointer checks to prevent crashes	2025-11-28 00:41:29 +08:00
dijunkun	82f32cbe8f	[fix] fix incorrect peer reference in AddVideoStream call	2025-11-27 23:53:27 +08:00
dijunkun	56da2f99f3	[chore] update Linux log path configuration	2025-11-27 23:20:14 +08:00
dijunkun	e6c72fe558	[feat] remove screen capture and accessibility permission when reinstall	2025-11-27 17:35:15 +08:00
dijunkun	a964c6bbf5	[fix] call log after log initialzation, refs #36 , #29	2025-11-27 16:09:08 +08:00
dijunkun	239da373d0	[feat] attempt to rejoin once per second	2025-11-27 04:20:29 +08:00
dijunkun	217cfb091d	[feat] display version info on startup	2025-11-27 04:18:08 +08:00
dijunkun	3c3c7b9ae0	[fix] fix crash when screen recording permission is not granted on macOS, refs #29	2025-11-27 03:32:16 +08:00
dijunkun	f14bdb7fe8	[feat] optimize UpdateNotificationWindow UI appearance	2025-11-27 03:07:55 +08:00
dijunkun	c0a98f97c3	[feat] optimize RequestPermissionWindow UI appearance	2025-11-27 02:40:33 +08:00
dijunkun	0ab6686eb8	[feat] use DrawToggleSwitch to request permission	2025-11-26 23:32:04 +08:00
dijunkun	76b475450b	[feat] request macOS system permissions by showing a prompt on startup	2025-11-26 18:18:40 +08:00
dijunkun	5d1e1b5667	[fix] remove permissions on uninstall and request permissions during installation for MacOS	2025-11-26 16:11:49 +08:00
dijunkun	c3b8b1374a	[chore] update README	2025-11-25 16:30:14 +08:00
dijunkun	7c940d6b15	[ci] fix tag error in update-version-json.yml	2025-11-25 03:30:28 +08:00
dijunkun	86501b05dd	[feat] show notification window if there is a new version avaliable	2025-11-25 01:20:16 +08:00
dijunkun	01ebed9b37	[ci] upload release notes to version.json	2025-11-25 01:19:12 +08:00
dijunkun	2188adb1f1	[chore] disable CROSSDESK_DEBUG in keyboard and mouse control	2025-11-24 16:47:33 +08:00
dijunkun	51409e16c8	[chore] update README	2025-11-23 01:54:54 +08:00
dijunkun	6ca3b58ae2	[fix] update MiniRTC to resolve occasional crash during connection shutdown, refs #29	2025-11-23 01:47:48 +08:00
dijunkun	692e176e34	[ci] use github.sha instead of hashFiles for xmake dependency cache	2025-11-23 00:35:26 +08:00
dijunkun	4fb7acaa61	[feat] set enable TURN by default	2025-11-23 00:02:04 +08:00
dijunkun	c0d6429a54	[fix] resolve missing mouse cursor display when web client connects to Linux devices, refs #30	2025-11-22 23:57:49 +08:00