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Library: winmm

Min. Required OS: Windows NT 3.1 or later; Windows 95 or later

Group: WAVE

Description: The waveOutUnprepareHeader function cleans up the preparation performed by the waveOutPrepareHeader function. This function must be called after the device driver is finished with a data block. You must call this function before freeing the buffer.

Low Level Audio Stream

Related function(s):
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