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The OnUpdateRectangles method is called when either the source or destination rectangle changes. |
a4979ca3-7882-4e63-bc34-9cc6c5b0675d |
CBaseControlVideo.OnUpdateRectangles method (Ctlutil.h) |
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4/26/2023 |
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UpdateFrequency5 |
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 OnUpdateRectangles
method is called when either the source or destination rectangle changes.
virtual HRESULT OnUpdateRectangles();
This method has no parameters.
Returns NOERROR.
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