CBaseWindow.PerformanceAlignWindow method

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Requirement Value
Header
Winutil.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBaseWindow Class