| Microsoft DirectX 8.1 (C++) | 
This topic applies to Windows XP Home Edition and Windows XP Professional only.
The GetNativeVideoSize method retrieves the un-stretched video size and aspect ratio of the video.
Syntax
HRESULT GetNativeVideoSize(
  LONG*  lpWidth,
  LONG*  lpHeight,
  LONG*  lpARWidth,
  LONG*  lpARHeight
);
Parameters
lpWidth
[out] Pointer that receives the width of the native video rectangle.
lpHeight
[out] Pointer that receives the height of the native video rectangle.
lpARWidth
[out] Pointer that receives the aspect ratio width of the native video rectangle.
lpARHeight
[out] Pointer that receives the aspect ratio height of the native video rectangle.
Return Values
If the method succeeds, it returns S_OK. Returns E_POINTER if all four input parameters are NULL.
| Error Code | Description | 
| VFW_E_WRONG_STATE | The VMR is not in windowless mode. | 
See Also