acmDriverClose function (msacm.h)

The acmDriverClose function closes a previously opened ACM driver instance. If the function is successful, the handle is invalidated.

Syntax

MMRESULT ACMAPI acmDriverClose(
  HACMDRIVER had,
  DWORD      fdwClose
);

had

Handle to the open driver instance to be closed.

fdwClose

Reserved; must be zero.

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

Return code	Description
ACMERR_BUSY	The driver is in use and cannot be closed.
MMSYSERR_INVALFLAG	At least one flag is invalid.
MMSYSERR_INVALHANDLE	The specified handle is invalid.

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