IO: amend PlatformOpenInShellFn specs to return a bool. (#7660)

Amend 8f36798

backends/imgui_impl_glfw.cpp

@@ -579,7 +579,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
     io.ClipboardUserData = bd->Window;
 #ifdef __EMSCRIPTEN__
-    io.PlatformOpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplGlfw_EmscriptenOpenURL(url); };
+    io.PlatformOpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplGlfw_EmscriptenOpenURL(url); return true; };
 #endif
 
     // Create mouse cursors

backends/imgui_impl_sdl2.cpp

@@ -441,7 +441,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer, void
     io.ClipboardUserData = nullptr;
     io.PlatformSetImeDataFn = ImGui_ImplSDL2_PlatformSetImeData;
 #ifdef __EMSCRIPTEN__
-    io.PlatformOpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplSDL2_EmscriptenOpenURL(url); };
+    io.PlatformOpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplSDL2_EmscriptenOpenURL(url); return true; };
 #endif
 
     // Gamepad handling

imgui.cpp

@@ -1131,7 +1131,7 @@ static void             WindowSettingsHandler_WriteAll(ImGuiContext*, ImGuiSetti
 static const char*      GetClipboardTextFn_DefaultImpl(void* user_data_ctx);
 static void             SetClipboardTextFn_DefaultImpl(void* user_data_ctx, const char* text);
 static void             PlatformSetImeDataFn_DefaultImpl(ImGuiContext* ctx, ImGuiViewport* viewport, ImGuiPlatformImeData* data);
-static void             PlatformOpenInShellFn_DefaultImpl(ImGuiContext* ctx, const char* path);
+static bool             PlatformOpenInShellFn_DefaultImpl(ImGuiContext* ctx, const char* path);
 
 namespace ImGui
 {
@@ -14358,12 +14358,12 @@ static void SetClipboardTextFn_DefaultImpl(void* user_data_ctx, const char* text
 #ifdef _MSC_VER
 #pragma comment(lib, "shell32")
 #endif
-static void PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char* path)
+static bool PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char* path)
 {
-    ::ShellExecuteA(NULL, "open", path, NULL, NULL, SW_SHOWDEFAULT);
+    return (INT_PTR)::ShellExecuteA(NULL, "open", path, NULL, NULL, SW_SHOWDEFAULT) > 32;
 }
 #elif !defined(IMGUI_DISABLE_DEFAULT_SHELL_FUNCTIONS)
-static void PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char* path)
+static bool PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char* path)
 {
 #if __APPLE__
     const char* open_executable = "open";
@@ -14372,10 +14372,10 @@ static void PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char* path)
 #endif
     ImGuiTextBuffer buf;
     buf.appendf("%s \"%s\"", open_executable, path);
-    system(buf.c_str());
+    return system(buf.c_str()) != -1;
 }
 #else
-static void PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char*) {}
+static bool PlatformOpenInShellFn_DefaultImpl(ImGuiContext*, const char*) { return false; }
 #endif // Default shell handlers
 
 //-----------------------------------------------------------------------------

imgui.h

@@ -28,7 +28,7 @@
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
 #define IMGUI_VERSION       "1.91.0 WIP"
-#define IMGUI_VERSION_NUM   19092
+#define IMGUI_VERSION_NUM   19093
 #define IMGUI_HAS_TABLE
 
 /*
@@ -2245,7 +2245,7 @@ struct ImGuiIO
 
     // Optional: Open link/folder/file in OS Shell
     // (default to use ShellExecuteA() on Windows, system() on Linux/Mac)
-    void        (*PlatformOpenInShellFn)(ImGuiContext* ctx, const char* path);
+    bool        (*PlatformOpenInShellFn)(ImGuiContext* ctx, const char* path);
     void*       PlatformOpenInShellUserData;
 
     // Optional: Notify OS Input Method Editor of the screen position of your cursor for text input position (e.g. when using Japanese/Chinese IME on Windows)