[gtkmm] compilation error due to a signal connect

[cedric <cedric probesys com>]

hi!
i m a newbie on gtkmm and i have a little (BIG ;-/ ) problem:

i ve made a class "test". in the constructor, i create a 
Gtk::Menu::MenuElem MenuName, and i want to connect it with a function 
"print". it works only and only if this "print" function is declared as 
static, because if i declare it virtual (or even without virtual) and 
not static, i have a compilation error :

"  /usr/include/sigc++-1.2/sigc++/object_slot.h: in constructor
  SigC::ObjectSlotNode::ObjectSlotNode(void(*)(void*), T*, void*, T2)
  [with T=test, T2=void (test::*)()]:
  ...
  it tells me that there no matching function in object_slot.h for the 
call to
  enuName = new Gtk::Menu_Helpers::MenuElem("test",
                        Gtk::Menu::AccelKey("<control>t"),
                        SigC::slot(&test::print) ); //here is the problem!
"

i don t uderstand! :p


here are my source code:


//--------------------------begin 
test.hh----------------------------------------
#ifndef EASYGEST_TEST
#define EASYGEST_TEST
#include <gtkmm.h>

class test
{
public:
 test();
 virtual ~test();
 virtual  Gtk::Menu_Helpers::MenuElem getMenuName();
 virtual Gtk::TreeModel::Row getTreeNode();

static void  print(); // virtual void print();

Gtk::Menu_Helpers::MenuElem *MenuName;
Gtk::TreeModel::Row TreeNode;

};

#endif //EASYGEST_TEST

//--------------------------begin 
test.hh----------------------------------------



//--------------------------begin 
test.cc----------------------------------------
#include <iostream>
#include "test.hh"

test::test()
{
   MenuName = new Gtk::Menu_Helpers::MenuElem("test",
                        Gtk::Menu::AccelKey("<control>t"),
                        SigC::slot(&test::print) ); //here is the problem!
}

test::~test()
{
   delete  MenuName;
}

Gtk::Menu_Helpers::MenuElem test::getMenuName()
{
   return *MenuName;
}

Gtk::TreeModel::Row test::getTreeNode()
{
   return TreeNode;
}

void  test::print()
{
   std::cout << "test ok" << std::endl;
}
//--------------------------end 
test.cc----------------------------------------


thanks a lot for your answers!!!! ;-)

cedric