GTK+ 2.0 教學-GtkHandleBox

void GtkHandleBox::child-attached	(GtkHandleBox *,
                                 	 GtkWidget *,
                                 	 gpointer);
void GtkHandleBox::child-detached	(GtkHandleBox *,
                                 	 GtkWidget *,
                                 	 gpointer);