|Microsoft DirectX 9.0|
The GetProcAmpControlRange method retrieves the range of values for an image adjustment setting, such as brightness, contrast, hue, or saturation. Image adjustment is performed by the graphics device, so the valid range depends on the graphics driver. If the driver does not support hardware image adjustment, this method fails.
HRESULT GetProcAmpControlRange( DWORD dwStreamID, VMR9ProcAmpControlRange* lpClrControl );
[in] Specifies the input stream.
[in, out] Pointer to a VMR9ProcAmpControlRange structure that receives the range. The caller must set the dwSize and dwProperty fields.
The method returns an HRESULT. Possible values include those in the following table.
|E_INVALIDARG||Invalid stream number.|
|E_POINTER||NULL pointer argument.|
|VFW_E_NOT_CONNECTED||The pin is not connected.|
Include D3d9.h, Vmr9.h.