2 using System.Threading;
3 using System.Runtime.InteropServices;
6 delegate void foo_delegate ();
8 static void function () {
9 Console.WriteLine ("Delegate method");
12 static void async_callback (IAsyncResult ar)
14 Console.WriteLine ("Async callback " + ar.AsyncState);
17 public static void Main () {
18 foo_delegate d = new foo_delegate (function);
19 AsyncCallback ac = new AsyncCallback (async_callback);
20 IAsyncResult ar1 = d.BeginInvoke (ac, "foo");
22 Console.WriteLine("Waiting");
23 ar1.AsyncWaitHandle.WaitOne();
24 Console.WriteLine("Sleeping");
26 Console.WriteLine("EndInvoke");
28 Console.WriteLine("Sleeping");
31 Console.WriteLine("Main returns");