IVMRWindowlessControl::SetAspectRatioMode method

The SetAspectRatioMode method specifies whether the VMR will preserve the aspect ratio of the source video.

Syntax

HRESULT SetAspectRatioMode(
  DWORD AspectRatioMode
);

Parameters

AspectRatioMode

Specifies a member of the VMR_ASPECT_RATIO_MODE enumeration type.

Return Value

Returns an HRESULT value. Possible values include the following:

Return code Description
E_INVALIDARG
Invalid argument
S_OK
Success
VFW_E_WRONG_STATE
The VMR is not in windowless mode.

Requirements

   
Minimum supported client Windows XP with SP1 [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)
Library Strmiids.lib

See Also

Error and Success Codes

IVMRWindowlessControl Interface

IVMRWindowlessControl::GetAspectRatioMode

Using the Video Mixing Renderer