gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item1), TRUE);
else
gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item2), TRUE);
g_signal_connect(G_OBJECT(item1), "activate",
gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item1), TRUE);
else
gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item2), TRUE);
g_signal_connect(G_OBJECT(item1), "activate",