Source Code

File: examplewindow.h

#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H

#include <gtkmm.h>

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

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

  //Child widgets:
  Gtk::FontButton m_Button;
};

#endif //GTKMM_EXAMPLEWINDOW_H

File: main.cc

#include <gtkmm/main.h>
#include "examplewindow.h"

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

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

  return 0;
}

File: examplewindow.cc

#include "examplewindow.h"
#include <iostream>


ExampleWindow::ExampleWindow()
: m_Button("sans")
{
  set_title("Gtk::FontSelectionDialog example");

  add(m_Button);
  m_Button.signal_font_set().connect(sigc::mem_fun(*this,
              &ExampleWindow::on_button_font_set) );

  show_all_children();
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_button_font_set()
{
  Glib::ustring font_name = m_Button.get_font_name();
  std::cout << "Font chosen: " << font_name << std::endl;
}