CBaseWindow.PerformanceAlignWindow 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 PerformanceAlignWindow method aligns the window position to DWORD boundaries, for maximum performance.
Syntax
HRESULT PerformanceAlignWindow();
Parameters
This method has no parameters.
Return value
Returns S_OK.
Remarks
This method aligns the left and top edges of the window to DWORD boundaries, which can improve performance. If the window has a parent, the method returns S_OK but does perform the alignment.
Requirements
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