waveInAddBuffer

The waveInAddBuffer function sends an input buffer to the given waveform-audio input device. When the buffer is filled, the application is notified.

MMRESULT waveInAddBuffer(

HWAVEIN hwi,
LPWAVEHDR pwh,
UINT cbwh
);

Parameters

hwi

Handle of the waveform-audio input device.

pwh

Address of a WAVEHDR structure that identifies the buffer.

cbwh

Size, in bytes, of the WAVEHDR structure.

Return Values

Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error values include the following:

MMSYSERR_INVALHANDLE	Specified device handle is invalid.
MMSYSERR_NODRIVER	No device driver is present.
MMSYSERR_NOMEM	Unable to allocate or lock memory.
WAVERR_UNPREPARED	The buffer pointed to by the pwh parameter hasn't been prepared.

Remarks

When the buffer is filled, the WHDR_DONE bit is set in the dwFlags member of the WAVEHDR structure.

The buffer must be prepared with the waveInPrepareHeader function before it is passed to this function.

See Also

WAVEHDR, waveInPrepareHeader

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