Hi, I previously did a report about this problem (august 04). The gtk+'s commit 1.189 (between GTK+ 2.2 and 2.4) introduced a new check in gdk/x11/gdkwindow-x11.c -> gdk_window_set_icon() : g_return_if_fail (GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD); Now this simple code shows a warning : dialog = gtk_message_dialog_new (window, GTK_DIALOG_MODAL, GTK_MESSAGE_QUESTION, GTK_BUTTONS_CANCEL, "Do you want something ?"); gtk_dialog_add_button (GTK_DIALOG (dialog), GTK_STOCK_QUIT, GTK_RESPONSE_ACCEPT); gtk_window_set_has_frame (GTK_WINDOW (dialog), TRUE); gtk_window_set_frame_dimensions (GTK_WINDOW(dialog), 6, 6, 6, 6); gtk_widget_show_all(dialog); I often use this code and warnings are really annoying :( Thank you. Stephane _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list