Something

using System;
using Gtk;

public class MyWindow : Window {
	private static Label l;
	
	public MyWindow () : base ("My New Window")
	{
	
		VBox v = new VBox();
		
		this.SetDefaultSize (300, 150);
		this.BorderWidth = 15;
		this.DeleteEvent += new DeleteEventHandler (OnMyWindowDelete);
		
		this.Add (v);
		v.Spacing = 6;
	
		l = new Label ("New Application");
		v.PackStart (l, true, false, 0);
		
		Button b1 = new Button ("Click Me");
		b1.Clicked += new EventHandler (OnButton1Clicked);
		v.PackStart (b1, false, false, 0);

		Button b2 = new Button ("Push me!");
		b2.Clicked += new EventHandler (OnButton2Clicked);
		v.PackStart (b2, false, false, 0);
						
		this.ShowAll ();
		
	}
	
	void OnMyWindowDelete (object o, DeleteEventArgs args)
	{
		Application.Quit ();
	}
	
	void OnButton1Clicked (object o, EventArgs args)
	{
		l.Text = "Button 1 Clicked";
	}
	
	void OnButton2Clicked (object o, EventArgs args)
	{
		l.Text = "2nd Button Clicked";
	}
	
}