gtk_signal_connect_after( GTK_OBJECT(combo->list), "select-child",
GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this );
gtk_signal_connect_after( GTK_OBJECT(combo->list), "select-child",
GTK_SIGNAL_FUNC(gtk_combo_select_child_callback), (gpointer)this );