acmStreamConvertCallback

	Overview

	Group

	Quick Info

The acmStreamConvertCallback function specifies an application-provided callback function to be used when the acmStreamOpen function specifies the CALLBACK_FUNCTION flag. The acmStreamConvertCallback name is a placeholder for an application-defined function name.

oid CALLBACK acmStreamConvertCallback(

HACMSTREAM has,
UINT uMsg,
DWORD dwInstance,
LPARAM lParam1,
LPARAM lParam2
);

Parameters
has

Handle of the ACM conversion stream associated with the callback function.

uMsg

ACM conversion stream message. The following values are defined:

MM_ACM_CLOSE

ACM has successfully closed the conversion stream identified by has. The handle specified by has is no longer valid after receiving this message.

MM_ACM_DONE

ACM has successfully converted the buffer identified by lParam1 (which is a pointer to the ACMSTREAMHEADER structure) for the stream handle identified by has.

MM_ACM_OPEN

ACM has successfully opened the conversion stream identified by has.

dwInstance

User-instance data given as the dwInstance parameter of the acmStreamOpen function.

lParam1 and lParam2

Message parameters.

Return Values
This function does not return a value.

Remarks
The following functions should not be called from within the callback function: acmDriverAdd, acmDriverRemove, and acmDriverPriority.

See Also
acmStreamOpen, ACMSTREAMHEADER, acmDriverAdd, acmDriverRemove, acmDriverPriority

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