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waveInPrepareHeader
The waveInPrepareHeader function prepares a buffer for waveform-audio input.
MMRESULT waveInPrepareHeader(
HWAVEIN hwi,
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| LPWAVEHDR pwh,
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| UINT cbwh
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| );
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Parameters
hwi
Handle of the waveform-audio input device.
pwh
Address of a WAVEHDR structure that identifies the buffer to be prepared.
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.
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Remarks
The lpData, dwBufferLength, and dwFlags members of the WAVEHDR structure must be set before calling this function (dwFlags must be zero).
See Also
WAVEHDR
Related Links
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Win32 Programmer's Reference (win32.hlp)
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Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
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