IFullScreenVideoEx::KeepPixelAspectRatio method (amvideo.h)

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 KeepPixelAspectRatio method specifies whether to maintain the pixel aspect ratio. The Full Screen Renderer filter does not support this method; it always maintains the pixel aspect ratio.

Syntax

HRESULT KeepPixelAspectRatio(
  [in] long KeepAspect
);

Parameters

[in] KeepAspect

Specifies whether to maintain the aspect ratio. The value must be OATRUE or OAFALSE.

Return value

Returns an HRESULT value.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header amvideo.h (include Dshow.h)
Library Strmiids.lib

See also

Error and Success Codes

IFullScreenVideoEx Interface