acmDriverID

The acmDriverID function returns the handle of an ACM driver identifier associated with an open ACM driver instance or stream handle.

MMRESULT acmDriverID(
  HACMOBJ hao,            
  LPHACMDRIVERID phadid,  
  DWORD fdwDriverID       
);

Parameters

hao
Handle of the open driver instance or stream handle. This is the handle of an ACM object, such HACMDRIVER or HACMSTREAM.
phadid
Address that is filled with a handle identifying the installed driver that is associated with hao.
fdwDriverID
Reserved; must be zero.

Return Values

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

Value Description
MMSYSERR_INVALFLAG At least one flag is invalid.
MMSYSERR_INVALHANDLE The specified handle is invalid.
MMSYSERR_INVALPARAM At least one parameter 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