+ * {
+ * gulong xid = GDK_WINDOW_XID (gtk_widget_get_window (video_window));
+ * video_window_handle = xid;
+ * }
+ * #endif
+ * #ifdef GDK_WINDOWING_WIN32
+ * {
+ * HWND wnd = GDK_WINDOW_HWND (gtk_widget_get_window (video_window));
+ * video_window_handle = (guintptr) wnd;
+ * }