rem: void checkbox_set_value ( GtkWidget * checkbox, guint * data, gboolean update )
add: void checkbox_set_value ( GtkWidget * checkbox, gint * data, gboolean update )
context: void checkbox_set_value ( GtkWidget * checkbox, guint * data, gboolean update ){    if (data)    {	if (g_object_get_data (G_OBJECT(checkbox), "hook") > 0)	    g_signal_handler_block ( checkbox, 				     (gulong) g_object_get_data (G_OBJECT(checkbox), 								 "hook" ));	if (g_object_get_data (G_OBJECT(checkbox), "set-boolean") > 0)	    g_signal_handler_block ( checkbox,				     (gulong) g_object_get_data (G_OBJECT(checkbox),								 "set-boolean" ));	gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON ( checkbox ), *data );	if (g_object_get_data (G_OBJECT(checkbox), "hook") > 0)	    g_signal_handler_unblock ( checkbox, 				       (gulong) g_object_get_data (G_OBJECT(checkbox),								   "hook" ));	if (g_object_get_data (G_OBJECT(checkbox), "set-boolean") > 0)	    g_signal_handler_unblock ( checkbox,				       (gulong) g_object_get_data ( G_OBJECT(checkbox),								    "set-boolean" ));    }    if (update)	g_object_set_data ( G_OBJECT ( checkbox ), "pointer", data);}