This inheritance list is sorted roughly, but not completely, alphabetically:
DX::DXColor
DX::IDXAnimationOwned
DX::IDXAnimationKeyframe
DX::IDXGroupAnim
DX::IDXFileBinding
DX::IDXGetGroupResult
DX::IDXGroupOwned
DX::IDXMesh
DX::IDXHasFileBinding
DX::IDXSkinEntry
DX::IDXMaterialOwned
DX::IDXMaterialMap
DX::IDXLightMap
DX::IDXMultiMap
DX::IDXSurfaceDetail
DX::IDXMeshOwned
DX::IDXFace
DX::IDXSkin
DX::IDXVertex
DX::IDXModelInfoOwned
DX::IDXTag
DX::IDXModelOwned
DX::IDXAnimation
DX::IDXFileSystem
DX::IDXGroup
DX::IDXMaterial
DX::IDXModelInfo
DX::IDXModelProperties
DX::IDXObjectProp
DX::IDXObjectPropAttribute
DX::IDXModelPropertiesOwned
DX::IDXObjectPropOwned
DX::IDXSkinOwned
DX::IDXUserData
DX::IDXAnimationKey
DX::IDXRotationKey
DX::IDXScaleKey
DX::IDXTranslationKey
DX::IDXFile
DX::IDXFileFloat32
DX::IDXFileInt32
DX::IDXFileResource
DX::IDXModel
DX::IDXSkinVert
DX::IDXSurfaceDetailXYZElement
DX::IDXUserTag