DrfObject_Struct.
ObjectAssocType
object associativity type UF_DRF_end_point UF_DRF_arc_center object must be an arc UF_DRF_tangency object must be an arc UF_DRF_intersection UF_DRF_dwg_pos UF_DRF_utility_symbol UF_DRF_on_annotation UF_DRF_on_stub