Adjustment & Spinbutton relationship

[turkaye dre vanderbilt edu (Emre Turkay)]

Hi folks,

   I couldn't find any information in gtk+ or gtkmm docs. Who manages
   the Gtk::Adjustment parameter given to the constructor of
   Gtk::SpinButton. Should I delete it, use Manage, or does spin button manages
   it by default?

Thanks,

  emre