waveOutWrite.md

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Function name : waveOutWrite

Group: Windows Multimedia - Library: winmm

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The waveOutWrite function sends a data block to the given waveform-audio output device.

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Code examples:

WAV file player
Playing WAV sounds simultaneously

Declaration:

MMRESULT waveOutWrite(
  HWAVEOUT hwo,
  LPWAVEHDR pwh,
  UINT cbwh
);  

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FoxPro declaration:

DECLARE INTEGER waveOutWrite IN winmm;
	INTEGER   hwo,;
	STRING  @ pwh,;
	INTEGER   cbwh
  

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Parameters:

hwo Handle to the waveform-audio output device.

pwh Pointer to a WAVEHDR structure containing information about the data block.

cbwh Size, in bytes, of the WAVEHDR structure.

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Return value:

Returns MMSYSERR_NOERROR (0) if successful or an error otherwise.

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Comments:

The buffer must be prepared with the waveOutPrepareHeader function before it is passed to waveOutWrite.

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

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