CDrawImage.SetDrawContext 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetDrawContext method sets the device contexts used for drawing.
Syntax
void SetDrawContext();
Parameters
This method has no parameters.
Return value
This method does not return a value.
Remarks
This method retrieves the window and memory device contexts from the owning CBaseWindow object. Call this method after the window is initialized, but before you begin drawing.
Requirements
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