[gtkmm] Glib::RefPtr also for Widgets?

[Christof Petig <christof petig-baender de>]

Hi,

since I'm again trying to clean up the way glademm handles it's toplevel 
widgets, I dare to ask a directional question:

Which is the recommended way to create and destroy toplevel widgets 
(widgets which are not children of another widget (these are handled 
well via manage))?

1- Gtk::Foo *w = new Foo();  .... destroy w;
2- { Gtk::Foo w = Foo();  ... }
3- { Glib::RefPtr<Foo> w = manage(new Foo()); ... }

each of them certainly has appeal of it's own. [If you embed toplevel 
widgets inside a class the question is similar.]

So my basic question: Does #3 work as expected for managed widgets? I 
only found examples for RefPtrs to Gdk objects? And which of 1 or 2 do 
you prefer for the main window? Or 3?

  Christof

PS: If 3 ... is there a RefPtr<> compatible solution for 1.2 ?