Add sample, not in default build

svn path=/trunk/gtk-sharp/; revision=49380

sample/Thread.cs

@@ -0,0 +1,59 @@
+//
+// Thread.cs - Using threads with Gtk#
+//
+// Author: Miguel de Icaza
+//
+// (c) 2005 Novell, Inc.
+
+namespace GtkSamples {
+
+	using Gtk;
+	using Gdk;
+	using System;
+	using System.Threading;
+
+	public class HelloThreads  {
+		static Label msg;
+		static Button but;
+		static int count;
+		static Thread thr;
+		
+		public static int Main (string[] args)
+		{
+			Application.Init ();
+			Gtk.Window win = new Gtk.Window ("Gtk# Hello World");
+			win.DeleteEvent += new DeleteEventHandler (Window_Delete);
+			msg = new Label ("Click to quit");
+			but = new Button (msg);
+			but.Clicked += delegate { thr.Abort (); Application.Quit (); };
+			win.Add (but);
+			win.ShowAll ();
+
+			thr = new Thread (ThreadMethod);
+			thr.Start ();
+			
+			Application.Run ();
+			
+			return 0;
+		}
+
+		static void ThreadMethod ()
+		{
+			Console.WriteLine ("Starting thread");
+			while (true){
+				count++;
+				Thread.Sleep (500);
+				Application.Invoke (delegate {
+					msg.Text = String.Format ("Click to Quit ({0})", count);
+				});
+			}
+		}
+		
+		static void Window_Delete (object obj, DeleteEventArgs args)
+		{
+			Application.Quit ();
+			args.RetVal = true;
+		}
+
+	}
+}