messaging-menu MessagingMenuApp MessagingMenuAppClass MessagingMenuStatus messaging_menu_app_append_source messaging_menu_app_append_source_with_count messaging_menu_app_append_source_with_string messaging_menu_app_append_source_with_time messaging_menu_app_draw_attention messaging_menu_app_has_source messaging_menu_app_insert_source messaging_menu_app_insert_source_with_count messaging_menu_app_insert_source_with_string messaging_menu_app_insert_source_with_time messaging_menu_app_new messaging_menu_app_register messaging_menu_app_remove_attention messaging_menu_app_remove_source messaging_menu_app_set_source_count messaging_menu_app_set_source_string messaging_menu_app_set_source_time messaging_menu_app_set_status messaging_menu_app_unregister MESSAGING_MENU_APP MESSAGING_MENU_APP_CLASS MESSAGING_MENU_IS_APP MESSAGING_MENU_TYPE_APP messaging_menu_app_get_type