acmStreamConvertCallback
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,
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UINT uMsg,
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DWORD dwInstance,
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LPARAM lParam1,
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LPARAM lParam2
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);
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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has is no longer valid after receiving this message.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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