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9.24 DR CAD object key constants

Value Constant Type Description
1 kDRRefnumCADKeyIndex longint DR Refnums are stored as CAD object key index 1
2 kDRObjIDCADKeyIndex longint When importing a 4D Draw drawing, the original 4D Draw Object ID is stored in this key
3 kDRObjHasFieldRefsCADKeyIndex longint When importing a 4D Draw drawing, the value of this key is 1 if the 4D Draw text object has field references, otherwise the value is 0

Also see
CADGetObjKey and CADSetObjKey.