| Microsoft DirectX 9.0 | 
The GetMaxIdealVideoSize method retrieves the maximum video size that the VMR can display without incurring significant performance or image quality degradation.
Syntax
HRESULT GetMaxIdealVideoSize(
  LONG*  lpWidth,
  LONG*  lpHeight
);
Parameters
lpWidth
[out] Pointer that receives the maximum ideal width.
lpHeight
[out] Pointer that receives the maximum ideal height.
Return Values
If the method succeeds, it returns S_OK. If it fails, it returns an error code.
| Error Code | Description | 
| VFW_E_WRONG_STATE | The VMR is not in windowless mode. | 
.
See Also