acmDriverID

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

MMRESULT acmDriverID(

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:

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

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