acmDriverDetailsA function (msacm.h)

The acmDriverDetails function queries a specified ACM driver to determine its capabilities.

Syntax

MMRESULT ACMAPI acmDriverDetailsA(
  HACMDRIVERID        hadid,
  LPACMDRIVERDETAILSA padd,
  DWORD               fdwDetails
);

Parameters

hadid

Handle to the driver identifier of an installed ACM driver. Disabled drivers can be queried for details.

padd

Pointer to an ACMDRIVERDETAILS structure that will receive the driver details. The cbStruct member must be initialized to the size, in bytes, of the structure.

fdwDetails

Reserved; must be zero.

Return value

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

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

Remarks

Note

The msacm.h header defines ACMDRIVERDETAILS as an alias that automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that is not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header msacm.h
Library Msacm32.lib
DLL Msacm32.dll

See also

Audio Compression Functions

Audio Compression Manager