>There is a substantial difference. Object added as a property is just a property which is an object pointer, but that object isn't a member (i.e. its .parent is null, it's not among oObject.objects). OTOH, oObject.addobject(...) and oObject.NewObject(.....) will create a member object. For the outside world this new object behaves the same (the syntax oObject.newlyaddedobject.property will be the same), but newlyaddedobject.parent=oObject, and newlyaddedobject is a member of oObject.objects collection.
OK, but my original question was about the difference between AddObject() and NewObject() - not AddProperty().
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