void gtk_custom_widget_delete(GtkCustom * custom);
void gtk_custom_widget_move_up(GtkCustom * custom);
void gtk_custom_widget_move_down(GtkCustom * custom);
void gtk_custom_widget_delete(GtkCustom * custom);
void gtk_custom_widget_move_up(GtkCustom * custom);
void gtk_custom_widget_move_down(GtkCustom * custom);