- gtk_signal_connect_object (GTK_OBJECT (main_area), "jump", GTK_SIGNAL_FUNC(jump), NULL);
+ gtk_signal_connect_object (GTK_OBJECT (main_area),
+ "jump", GTK_SIGNAL_FUNC(jump),
+ (gpointer) main_area);
+
+ gtk_signal_connect_object (GTK_OBJECT (main_area),
+ "clicked", GTK_SIGNAL_FUNC(clicked),
+ (gpointer) main_area);