Re: MipMaps (From Docs) - After your application selects the mipmap texture set, it must assign values from the D3DTEXTUREMIPFILTER enumerated type to the D3DTSS_MIPFILTER texture stage state. Direct3D will then automatically perform mipmap texture filtering.
Your application can also manually traverse a chain of mipmap surfaces by using the IDirectDrawSurface7::GetAttachedSurface method and specifying the DDSCAPS_MIPMAP and DDSCAPS_TEXTURE flags in the DDSCAPS2 structure.
Your application can also manually traverse a chain of mipmap surfaces by using the IDirectDrawSurface7::GetAttachedSurface method and specifying the DDSCAPS_MIPMAP and DDSCAPS_TEXTURE flags in the DDSCAPS2 structure.