Function name: waveOutUnprepareHeader

Defined in : winmm

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

Declaration:

Declare Function waveOutUnprepareHeader Lib "winmm.dll" Alias "waveOutUnprepareHeader" (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 identifying the data block to be cleaned up. * 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. WAVERR_STILLPLAYING The data block pointed to by the pwh parameter is still in the queue.

Related functions:

Examples:

Sorry, this function has no examples yet.