IDirect3DRMFrame::SetZbufferMode
HRESULT SetZbufferMode(D3DRMZBUFFERMODE d3drmZBM);
Sets the z-buffer mode; that is, whether z-buffering is enabled or disabled.
·Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.
d3drmZBM
One of the members of the D3DRMZBUFFERMODE enumerated type, specifying the z-buffer mode. The default value is D3DRMZBUFFER_FROMPARENT.