[fix] prevent Windows startup crashes from OpenGL failures, fixes #97

apps/desktop/src/platform/windows/gui/slint_backend.h

@@ -0,0 +1,33 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-09-07
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SLINT_BACKEND_H_
+#define _SLINT_BACKEND_H_
+
+#include <cstdint>
+#include <string>
+
+namespace crossdesk {
+
+struct SlintBackendSelection {
+  bool success = true;
+  std::string backend;
+  std::string diagnostic;
+};
+
+inline constexpr char kSlintRendererProbeArgument[] = "--slint-renderer-probe";
+
+// Call before creating any Slint components. The executable's main() must
+// dispatch kSlintRendererProbeArgument before services, settings or the daemon.
+SlintBackendSelection ConfigureWindowsSlintBackend(
+    uint32_t probe_timeout_ms = 10000);
+
+// Internal child-process entry point; never call in the main application.
+int RunSlintRendererProbe();
+
+}  // namespace crossdesk
+
+#endif