= class Gtk::TearoffMenuItem
a Gtk::TearoffMenuItem is a special Gtk::MenuItem which is used to tear off and reattach its menu. 
When its menu is shown normally, the Gtk::TearoffMenuItem is drawn as a dotted line indicating that the menu can be torn off. Activating it causes its menu to be torn off and displayed in its own window as a tearoff menu. 
When its menu is shown as a tearoff menu, the Gtk::TearoffMenuItem is drawn as a dotted line which has a left pointing arrow graphic indicating that the tearoff menu can be reattached. Activating it will erase the tearoff menu window. 

== Object Hierarchy
* Object
  * GLib::Instantiatable
    * GLib::Object
      * Gtk::Object
        * Gtk::Widget
          * Gtk::Container
            * Gtk::Bin
              * Gtk::Item
                * Gtk::MenuItem
                  * Gtk::TearoffMenuItem

== Class Methods
--- Gtk::TearoffMenuItem.new
    Creates a new Gtk::TearoffMenuItem. 
    * Returns: a new Gtk::TearoffMenuItem.  

== See Also
Gtk::Menu for further discussion of menus in Ruby/GTK.

- ((<Masao>))