Microsoft DirectX 9.0


The SetAlphaBitmap method specifies a new bitmap image and the source location of the bitmap and how and where it should be rendered on the destination rectangle.


HRESULT SetAlphaBitmap(
  const VMR9AlphaBitmap*  pBmpParms



[in]  Pointer to a VMR9AlphaBitmap structure that contains information about the bitmap.

Return Values

The method returns an HRESULT. Possible values include those in the following table.

Value Description
S_OK The method succeeded.
E_POINTER pBmpParms is NULL.
E_INVALIDARG Indicates a problem with the dwFlags member of the VMR9ALPHABITMAP structure or failure to specify a valid HDC or Direct3D surface in the structure, or an invalid value for fAlpha.
E_OUTOFMEMORY Could not create a destination DC or DIBSection for the bitmap.
E_FAIL BitBlt to bitmap surface failed.


Include D3d9.h, Vmr9.h.

See Also