Is 'cout' a member of 'std'

[jalkadir gosonic ca]

When trying to compile the below program, I get a message saying that
'cout' is not a member of 'std', what the heck is that message for?!

Is this a bug in g++

SPECS -
MSW-XP
DEV-CPP - MINWING - GCC 3.3.x

#include <gtkmm/button.h>
#include <gtkmm/window.h>
#include <gtkmm/main.h>
#include <string>

class HelloWorld : virtual public Gtk::Window{
   public:
      HelloWorld();
      virtual ~HelloWorld();

   protected:
      //Signal handlers:
      virtual void on_button_clicked();

      //Member widgets:
      Gtk::Button m_button;
};
// creates a new button with the label "Hello World".
HelloWorld::HelloWorld() : m_button("Hello World"){

  // Sets the border width of the window.
  set_border_width(10);

  // When the button receives the "clicked" signal, it will call the
  // on_button_clicked() method. The on_button_clicked() method is defined
below.
  m_button.signal_clicked().connect(sigc::mem_fun(*this,
&HelloWorld::on_button_clicked));

  // This packs the button into the Window (a container).
  add(m_button);

  // The final step is to display this newly created widget...
  m_button.show();
}

HelloWorld::~HelloWorld(){}
/* ?????????????????????? HERE IS THE PROBLE ????????????????? */
void HelloWorld::on_button_clicked(){
   std::cout << "Hello World" << std::endl;
}

int main (int argc, char *argv[])
{
  Gtk::Main kit(argc, argv);

  HelloWorld helloworld;
  Gtk::Main::run(helloworld); //Shows the window and returns when it is
closed.

  return 0;
}
-- 
* You cannot exercise your power to a point of humiliation.
                               - Jean Chretien

* It's amazing how the small seeds of distrust and misunderstanding  can
yield a crop of hate and death...

* If that document has fine printing anywhere, just chuck it in the garbage
                              - Jorge Escalante

Ma'assalama! Adiós!  bye!

-- 
* You cannot exercise your power to a point of humiliation.
                               - Jean Chretien

* It's amazing how the small seeds of distrust and misunderstanding  can
yield a crop of hate and death...

* If that document has fine printing anywhere, just chuck it in the garbage
                              - Jorge Escalante

Ma'assalama! Adiós!  bye!