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This method sets the minimum amount of data that should be available before a data available event is set. The engine uses the method only if it calls ISpSREngineSite::Read with at least a certain amount of data available. The engine only calls this method from inside a call to its ISpSREngine::RecognizeStream method, but it can be called on any thread.
This method is used in conjunction with the Win32 event passed as a parameter to ISpSREngine::RecognizeStream. On non-real-time streams, for example, a stream read from a wave file, this event will always be set, as all the data in the file is available for reading. In this case, ISpSREngineSite::SetBufferNotifySize will return SP_UNSUPPORTED_ON_STREAM_INPUT.
HRESULT SetBufferNotifySize( ULONG cbSize);
Parameters
- cbSize
[in] Minimum amount of data, in bytes, that should be available before the data available event is set.
Return Values
The following table shows the possible return values.
| Value | Description |
|---|---|
| S_OK | Function completed successfully. |
| SP_UNSUPPORTED_ON_STREAM_INPUT | Function call has no effect, as the stream is not real-time audio. |
| FAILED(hr) | Appropriate error message. |
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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