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This topic applies to Windows XP or later.
The get_UsingOverlay method queries whether the Video Mixing Renderer (VMR) is using the hardware overlay.
Syntax
HRESULT get_UsingOverlay(
  [out]  VARIANT_BOOL *pUseOverlayVal
);
Parameters
- pUseOverlayVal [out] 
 Pointer to a variable the receives one of the following values.- Value - Description - VARIANT_TRUE - The VMR is using the hardware overlay. - VARIANT_FALSE - The VMR is not using the hardware overlay. 
Return Value
If the method succeeds, it returns S_OK. If it fails, it returns an error code.
Requirements
| Header | Declared in Dshow.h. | 
| DLL | Requires Quartz.dll. | 
See Also
IMSVidVideoRenderer Interface
IMSVidVideoRenderer::put_UsingOverlay
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Build date: 12/4/2008