Generic Menu - HELP!!

[ArbolOne <arbolone gmail com>]

Data
~~~~
WinXP
MinGW (latest version)
Gtkmm (latest install)

I would like to create a generic Menu class which  will display a 
Menubar with the well known choices; 'File', 'Edit', 'View', etc., etc., 
items as well as a Toolbar full of icons from 'Gtk::Stock'. This class 
will appear in every windows that my program will display through the 
use of subclasses.

However, going through the chapter 11 of the tutorial I have come to a 
problem, the Example class in the tutorial derives from Gtk::Window and 
later on packs everything into a Gtk::VBox, since I am creating just the 
Menu, to later add it to a Gtk::Window, I intent to derive the Menu 
class directly from Gtk::VBox. This is all good and dandy, however, in 
the tutorial the developer calls 
'add_accel_group(m_refUIManager->get_accel_group());' from within the 
constructor of the Example class, this is ok for a class that derives 
from Gtk::Window like this one, but in my case it is imposible to call 
this method, since the parent classes of Gtk::VBox do not derive from 
Gtk::Window.
In an attempt to circumvent this problem I have written this method
const Glib::RefPtr<Gtk::AccelGroup>& Menu::getAccelGroup(){
   return this->RefUIManager->get_accel_group();
}
but this gives me a segmentation fault.

Ok, now that I have explain my intention and predicament I would like to 
ask the experts here to help me resolve this issue. Any body?!

Here is snip copy of my Menu class
Menu.hpp
~~~~~~~
class Menu :  public Gtk::VBox{
public:
       Menu(); //!Constructor
       virtual ~Menu() {} //! Destructor
       const Glib::RefPtr<Gtk::AccelGroup>& getAccelGroup();

protected:
       //Child widgets:
       Glib::RefPtr<Gtk::ActionGroup> RefActionGroup;
       Glib::RefPtr<Gtk::UIManager>   RefUIManager;
       Glib::RefPtr<Gtk::RadioAction> ChoiceOne, ChoiceTwo;
       virtual void onActionActivated();
}; //class

Menu.cpp

Menu::Menu(){
   //Create actions for menus and toolbars
   RefActionGroup = Gtk::ActionGroup::create();
   RefActionGroup->add( Gtk::Action::create("MenuFile", "_File") );
   RefActionGroup->add( Gtk::Action::create("New",  Gtk::Stock::NEW,
   "_New",
   "Create a new fle"),
   sigc::mem_fun(*this, &Menu::onActionActivated));

   RefUIManager = Gtk::UIManager::create();
   RefUIManager->insert_action_group(RefActionGroup);
}
void Menu::onActionActivated(){
 //some code
}
const Glib::RefPtr<Gtk::AccelGroup>& Menu::getAccelGroup(){
   return this->RefUIManager->get_accel_group();
}


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