ISpRecognizer::GetRecoState (SAPI 5.4)
ISpRecognizer::GetRecoState retrieves the current state of the recognition engine.
HRESULT GetRecoState( SPRECOSTATE *pState );
- [out] One of the input state flags contained in the SPRECOSTATE enumeration.
|S_OK||Function completed successfully.|
|FAILED(hr)||Appropriate error message.|
This method determines whether audio is currently being read from the audio input stream and passed to the SR engine.
See also ISpRecognizer::SetRecoState
The default recognizer state is SPRST_ACTIVE, which means SAPI will activate the audio input stream only when at least one top-level rule is active.
To be notified when the recognizer state changes (e.g. another application changes the shared SR engine's recognizer state), rather than polling the state with ::GetRecoState, call ISpEventSource::SetInterest with SPEI_RECO_STATE.