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waveOutPrepareHeader

The waveOutPrepareHeader function prepares a waveform-audio data block for playback.

VB4-32,5,6
Declare Function waveOutPrepareHeader Lib "winmm.dll" Alias "waveOutPrepareHeader" (ByVal hWaveOut As Long, lpWaveOutHdr As WAVEHDR, ByVal uSize As Long) As Long

Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later

Library
Winmm

Parameter Information
· 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.

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.

Examples

Related Functions

 

 


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