Retrieves the normal vector of a Direct3DRMFace object.
HRESULT GetNormal(
D3DVECTOR *lpNormal
);
Parameters
lpNormal
Address of a D3DVECTOR structure that will be filled with the normal vector of the face.
Return Values
Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.