|
acmDriverEnum
The acmDriverEnum function enumerates the available ACM drivers, continuing until there are no
more drivers or the callback function returns FALSE.
MMRESULT acmDriverEnum(
ACMDRIVERENUMCB fnCallback,
|
| DWORD dwInstance,
|
| DWORD fdwEnum
|
| );
|
|
Parameters
fnCallback
Procedure instance address of the application-defined callback function.
dwInstance
A 32-bit application-defined value that is passed to the callback function
along with ACM driver information.
fdwEnum
Flags for enumerating ACM drivers. The following values are defined:
ACM_DRIVERENUMF_DISABLED
Disabled ACM drivers should be included in the enumeration. Drivers can be
disabled by the user through the Control Panel or by an application using the acmDriverPriority function. If a driver is disabled, the fdwSupport parameter to the callback function will have the
ACMDRIVERDETAILS_SUPPORTF_DISABLED flag set.
ACM_DRIVERENUMF_NOLOCAL
Only global drivers should be included in the enumeration.
Return Values
Returns zero if successful or an error otherwise. Possible error values
include the following:
MMSYSERR_INVALFLAG
| At least one flag is invalid.
| MMSYSERR_INVALPARAM
| At least one parameter is invalid.
|
Remarks
The acmDriverEnum function will return MMSYSERR_NOERROR (zero) if no ACM drivers are installed.
Moreover, the callback function will not be called.
See Also
acmDriverPriority
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