# File gtk/sample/gtk-demo/common.rb, line 25
    def initialize(title = nil)
      super(Gtk::Window::TOPLEVEL)
      if title
        set_title("#{title} in Ruby/GTK")
      end

      signal_connect("key_press_event") do |widget, event|
        if event.state.control_mask? and event.keyval == Gdk::Keyval::GDK_q
          destroy
          true
        else
          false
        end
      end

      signal_connect("delete_event") do |widget, event|
        quit
      end
    end