enum OdDgExtendedElementType { kSectionClipElement = 0x006D0000, kXRefViewsElement = 0x006B0002, kDisplayStyleElement = 0x006F0000, kDetailingSymbolElement = 0x57000001, kLuxSetupElement = 0x58740000, kEnvironmentMapTableElement = 0x58740001, kExtendedElementWithGrCache = 0x587E0000, kTerrainCtrlElement = 0x58EC0015, kTerrainGraphElement = 0x58EC000B, kTerrainGraphElementCE = 0x58D3000C, kTableElement = 0x592D0000, kItemLibrary = 0xEC340000, kTablePrototype = 0xEC3A0000, kVariables = 0x58E40005, kConstraints2d = 0x56DA001E };