add: item->SetTarget(video_mode_hook);
context: platform_add_menus(Menu *menu){	MenuItem *item;	switch (menu->Type()) {		case MAIN_MENU:			menu->AddItem(item = new MenuItem("Select fail-safe video mode", video_mode_menu()));			break;		case SAFE_MODE_MENU:			menu->AddItem(item = new MenuItem("Don't call the BIOS"));			item->SetType(MENU_ITEM_MARKABLE);			break;		default:			break;	}}