Check if X11 before requesting X11 WM name

lxde · Sep 17, 2023 · c5ace45 · c5ace45
1 parent 6d4ed86
commit c5ace45
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/main.c b/src/main.c
@@ -157,8 +157,12 @@ extern gboolean plugin_load(LXAppearance* app, GtkBuilder* lxappearance_builder)
     if(app->abi_version > LXAPPEARANCE_ABI_VERSION)
         return FALSE;
 
+    GdkScreen *screen = gtk_widget_get_screen(app->dlg);
+    if(!GDK_IS_X11_SCREEN(screen))
+        return FALSE;
+
     /* detect openbox */
-    const char* wm_name = gdk_x11_screen_get_window_manager_name(gtk_widget_get_screen(app->dlg));
+    const char* wm_name = gdk_x11_screen_get_window_manager_name(screen);
     if(g_strcmp0(wm_name, "Openbox"))
         return FALSE; /* don't load the plugin if openbox is not in use. */