Function name: waveOutPrepareHeader

Defined in : winmm

Requirements : Windows NT 3.1 or later; Windows 95 or later

Declaration:

Declare Function waveOutPrepareHeader Lib "winmm.dll" Alias "waveOutPrepareHeader" (ByVal hWaveOut As Long, lpWaveOutHdr As WAVEHDR, ByVal uSize As Long) As Long

Parameters:

* hwo Handle of the waveform-audio output device. * pwh Address of a WAVEHDR structure that identifies the data block to be prepared. * cbwh Size, in bytes, of the WAVEHDR structure.

Returns:

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.

Related functions:

Examples:

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