acmDriverProc
The
acmDriverProc function specifies a callback function used with the ACM driver. The
acmDriverProc name is a placeholder for an application-defined function name. The actual
name must be exported by including it in the module-definition file of the
executable or DLL file.
LRESULT CALLBACK acmDriverProc(
DWORD dwID,
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HDRIVER hdrvr,
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|
UINT uMsg,
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LPARAM lParam1,
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LPARAM lParam2
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);
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Parameters
dwID
Identifier of the installable ACM driver.
hdrvr
Handle of the installable ACM driver. This parameter is a unique handle the
ACM assigns to the driver.
uMsg
ACM driver message.
lParam1 and
lParam2
Message parameters.
Return Values
Returns zero if successful or an error otherwise.
Remarks
Applications should not call any system-defined functions from inside a
callback function, except for
PostMessage,
timeGetSystemTime,
timeGetTime,
timeSetEvent,
timeKillEvent,
midiOutShortMsg,
midiOutLongMsg, and
OutputDebugStr.
See Also
PostMessage,
timeGetSystemTime,
timeGetTime,
timeSetEvent,
timeKillEvent,
midiOutShortMsg,
midiOutLongMsg
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