AcHeapOperators AcRxObject AcGraphNode AcConstraintGroupNode AcGeomConstraint AcParallelConstraint AcHorizontalConstraint
class AcHorizontalConstraint : public AcParallelConstraint;
AcImplicitConstr.h
This class represents a Horizontal constraint node in the owning AcDbAssoc2dConstraintGroup. It can be applied on one constrained line.