CSourceStream.OnThreadStartPlay 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 OnThreadStartPlay method is called at the start of the CSourceStream::DoBufferProcessingLoop method.
Syntax
virtual HRESULT OnThreadStartPlay();
Parameters
This method has no parameters.
Return value
Returns S_OK.
Remarks
This method does nothing in the base class; it is available for the derived class to override.
Requirements
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