_context _id _parent _refcount _shape _tag addRef clone context create getID getParent getTag getType MgShapeT MgShapeT registerCreator release setContext setParent setTag shape shapec ThisClass Type ~MgShapeT

_refcount template<class ShapeT, class ContextT = GiContext> volatile long MgShapeT< ShapeT, ContextT >::_refcount