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 to the open driver instance or stream handle. This is the handle of an ACM object, such HACMDRIVER or HACMSTREAM.
phadid
Pointer to a buffer that receives 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. |
Requirements
** Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
** Windows 95/98/Me:** Included in Windows 95 and later.
** Header:** Declared in Msacm.h.
** Library:** Use Msacm32.lib.
See Also