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.
void 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specified by has is no longer valid after receiving this message.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