- g_signal_connect(window, "destroy", G_CALLBACK(on_destroy), NULL);
- g_signal_connect(window, "key-press-event", G_CALLBACK(on_key), NULL);
- g_signal_connect(window, "button-press-event", G_CALLBACK(on_button), NULL);
- g_signal_connect(window, "motion-notify-event", G_CALLBACK(on_move), NULL);
- g_signal_connect(window, "draw", G_CALLBACK(on_draw), NULL);
+ g_signal_connect(screen, "destroy", G_CALLBACK(on_destroy), NULL);
+ g_signal_connect(screen, "key-press-event", G_CALLBACK(on_key), NULL);
+ g_signal_connect(screen, "button-press-event", G_CALLBACK(on_button), NULL);
+ g_signal_connect(screen, "motion-notify-event", G_CALLBACK(on_move), NULL);
+ g_signal_connect(screen, "draw", G_CALLBACK(on_draw), NULL);