There is no difference, I don't believe, currently. In the old days, you had to be careful with the widget that was being directly managed by XManager. Normally, you set properties on this widget (the top-level base) using XManager and avoided setting these properties on the top-level base widget directly. I still program this way, but I think it is probably unnecessary in this day and age. :-)

David, thanks very much! I thinks i just choose one solution.