|Microsoft DirectX 9.0|
The GetBlendingParameter method retrieves the value of the blending parameter that defines how a secondary stream is blended with a primary stream.
HRESULT GetBlendingParameter( DWORD *pdwBlendingParameter );
[out] Pointer to a value between 0 and 255 that indicates the amount of blending between a primary stream and a secondary stream.
Returns an HRESULT value. Possible values include the following:
|E_UNEXPECTED||Method called on primary stream.|
|E_INVALIDARG||Value outside of possible range (0-255).|
A value of zero indicates that the secondary stream is invisible; a value of 255 indicates the primary stream is invisible in the area that the secondary stream occupies.