CPullPin.BeginFlush method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The BeginFlush method informs the owning filter to flush the downstream filters. The derived class must implement this method.
Syntax
virtual HRESULT BeginFlush();
Parameters
This method has no parameters.
Return value
Returns an HRESULT value.
Remarks
The CPullPin::Seek method calls this method. Implement this method to call the IPin::BeginFlush method on each downstream input pin that receives data from this object. If your filter's output pin(s) derive from CBaseOutputPin, call the CBaseOutputPin::DeliverBeginFlush method.
This design enables the filter to seek the stream simply by calling Seek on the CPullPin object.
Requirements
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See also
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