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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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