ISpSREngineSite::DataAvailable (Windows CE 5.0)
This method gets the amount of data that can be read by the ISpSREngineSite::Read method without blocking. The DataAvailable method can only be called while the SR engine is inside an ISpSREngine::RecognizeStream call, although it can be called on any thread.
HRESULT DataAvailable( ULONG* pcb);
Parameters
- pcb
[out] Pointer to the amount, in bytes, of data available. For real-time audio streams, this is the actual amount of data currently available. For non-real-time streams, this method always retrieves the value INFINITE. See Remarks section.
Return Values
The following table shows the possible return values.
| Value | Description |
|---|---|
| S_OK | Function completed successfully. |
| E_POINTER | pcb is a bad write pointer. |
| SPERR_STREAM_NOT_ACTIVE | Method called when engine is not inside RecognizeStream call. |
| FAILED(hr) | Appropriate error message. |
Remarks
Engines can determine if a stream is a real-time stream from the fRealTimeAudio parameter on the ISpSREngine::RecognizeStream method.
Requirements
OS Versions: Windows CE .NET 4.1 and later.
Header: Sapiddk.h, Sapiddk.idl.
Link Library: Sapilib.lib.
See Also
ISpSREngineSite | SAPI Interfaces
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