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Retrieves the current message drain.
HRESULT get_MessageDrain( OAHWND * Drain );
Parameters
- Drain
- Current window receiving window messages.
Return Values
Returns an HRESULTvalue.
Remarks
Messages sent to the video renderer filter can be posted to another window. The window registered to receive these messages (using the CBaseControlWindow::get_MessageDrainmember function) is the current message drain.