AcRxObject AcGiDrawable AcHeapOperators AcDbObject AcDbEntity AcDbCurve AcDb2dPolyline
class AcDb2dPolyline : public AcDbCurve;
dbents.h
The AcDb2dPolyline class represents the 2D polyline entity within AutoCAD.
Do not derive from this class. Attempting to do so will cause your application to halt AutoCAD.
AcDbObject, AcDbEntity, AcDb2dVertex