addRef clone copy equals getType isKindOf operator!= operator= operator== release release_pointer ~MgObject

release() virtual void MgObject::release ( ) pure virtual 释放引用计数，为0时销毁对象 在 MgShapes, MgShapeDoc, MgShapeT< ShapeT, ContextT >, MgShapeExt, MgRecordShape , 以及 MgLayer 内被实现. 这是这个函数的调用关系图: