[gtkmm] [Glib] help with Glib::Module::get_symbol

[cedric <cedric probesys com>]

hello,
I'm using GTKMM GLIB MODULE to have a modular application.

But I can't retrieve a symbol on a function which is in a module.
I use get_symbol but it doesn't find it :o(

***********************************************************************************
Here's my code :
           string filename = (*f).data();
           cout << "creating module with filename : " <<  filename << " 
..." << endl ;
           //string modulename = 
Glib::Module::build_path("/usr/local",filename);
           Glib::Module * NewModule = new  Glib::Module(filename , 
Glib::MODULE_BIND_MASK);
           if (NewModule->gobj() != NULL)
               cout <<  "New module found." << endl;
           else
               cout << Glib::Module::get_last_error() << endl;
           cout << "getting symbol ... " ;
           *bool found = NewModule->get_symbol ("get_module", ptr_plugin);*
           if (found) {
           cout << "adding module into the list ... " ;
           list_plugin.push_back((IPlugin *) ptr_plugin);
           cout << "ok. " << endl;
***********************************************************************************
And the module : (in a library with extension .so)
           IPlugin *    get_module ()
           {
               std::cout << "get_module() ok." << std::endl;
               return new test;
           } 

IPlugin is the interface of my module.

***********************************************************************************
The header of my module :
#ifndef EASYGEST_TEST
#define EASYGEST_TEST
#include <gtkmm.h>
#include "IPlugin.hh"
static IPlugin *    get_module (); // permet de récupérer le module
class test:public IPlugin
{
     public:
        static void print ();
         test ();
         virtual ~ test ();
       virtual Gtk::Menu_Helpers::MenuElem getMenuName ();
       virtual Gtk::TreeModel::Row getTreeNode ();
         Gtk::Menu_Helpers::MenuElem * MenuName;
         Gtk::TreeModel::Row TreeNode;
};
#endif
***********************************************************************************
When executing :

creating module with filename : ./Plugin/libtest.so ...
New module found.
getting symbol ... symbol not found !

I don't understand why get_symbol don't find my function get_module !

If you have any idea ...
THANKS

Seb.