AcRxObject AcGiDrawable AcHeapOperators AcDbObject AcDbEvalExpr AcDbEvalConnectable
class AcDbEvalConnectable : public AcDbEvalExpr;
dbeval.h
This class implements a runtime inspection interface for named properties on AcDbEvalExpr objects. Objects implementing this class expose a collection of named, typed properties and semantics for connecting properties between AcDbEvalGraph-resident connectable instances.