acmDriverClose

The acmDriverClose function closes a previously opened ACM driver instance. If the function is successful, the handle is invalidated.

MMRESULT acmDriverClose(
  HACMDRIVER had, 
  DWORD fdwClose  
);

Parameters

had
Handle of the open driver instance to be closed.
fdwClose
Reserved; must be zero.

Return Values

Returns zero if successful or an error otherwise. Possible error values include the following:

Value Description
ACMERR_BUSY The driver is in use and cannot be closed.
MMSYSERR_INVALFLAG At least one flag is invalid.
MMSYSERR_INVALHANDLE The specified handle is invalid.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in msacm.h.
  Import Library: Use msacm32.lib.

See Also

Audio Compression Manager Overview, Audio Compression Functions