function sends a data block to the given waveform-audio output device.
| HWAVEOUT hwo,
| LPWAVEHDR pwh,
| UINT cbwh
Handle of the waveform-audio output device.
Address of a WAVEHDR
structure containing information about the data block.
Size, in bytes, of the WAVEHDR
Returns MMSYSERR_NOERROR if successful or an error otherwise. Possible error
values include the following:
||Specified device handle is invalid.
||No device driver is present.
||Unable to allocate or lock memory.
||The data block pointed to by the pwh parameter hasn't been prepared.
When the buffer is finished, the WHDR_DONE bit is set in the dwFlags
member of the WAVEHDR
The buffer must be prepared with the waveOutPrepareHeader
function before it is passed to waveOutWrite
. Unless the device is paused by calling the waveOutPause
function, playback begins when the first data block is sent to the device.
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