AcRxObject AcGiDrawable AcHeapOperators AcDbObject AcDbEntity AcDbCurve AcDb3dPolyline
class AcDb3dPolyline : public AcDbCurve;
dbents.h
The AcDb3dPolyline class represents the 3D polyline entity within AutoCAD.
Do not derive from this class. Attempting to do so will cause your application to halt AutoCAD.
AcDbObject, AcDbEntity