IDirect3DRMFrame::GetOrientation
HRESULT GetOrientation(LPDIRECT3DRMFRAME lpRef, LPD3DVECTOR lprvDir,
LPD3DVECTOR lprvUp);
Retrieves the orientation of a frame relative to the given reference frame.
·Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.
lpRef
Address of a variable that represents the Direct3DRMFrame object to be used as the reference.
lprvDir and lprvUp
Addresses of D3DVECTOR structures that will be filled with the directions of the frame's z- and y-axes respectively.