HRESULT Transform(D3DVECTOR *lpd3dVDst, D3DVECTOR *lpd3dVSrc);
Transforms the vector in the lpd3dVSrc parameter in frame coordinates to world coordinates, returning the result in the lpd3dVDst parameter.
·Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.
lpd3dVDst
Address of a D3DVECTOR structure that will be filled with the result of the transformation operation.
lpd3dVSrc
Address of a D3DVECTOR structure that is the source of the transformation operation.