/** Set callbacks of the current engine */
int ttsd_engine_agent_set_private_data_set_cb(ttse_private_data_set_cb callback);
int ttsd_engine_agent_set_private_data_requested_cb(ttse_private_data_requested_cb callback);
+int ttsd_engine_agent_set_activated_mode_changed_cb(ttse_activated_mode_changed_cb callback);
/** Unload current engine */
int ttsd_engine_agent_unload_current_engine();
int ttsd_engine_check_app_agreed(const char* appid, bool* is_agreed);
+int ttsd_engine_notify_activated_mode_changed(int activated_mode);
+
/*
* TTS Engine Interfaces for client
*/