C#

public class AlarmClock
{
    public event AlarmEventHandler Alarm;

    protected virtual void OnAlarm(AlarmEventArgs e)
    {
       if (Alarm != null)
       {
          // Invokes the delegates.
          Alarm(this, e);
       }
    }
}
public static void Main (string[] args)
{
       // Instantiates the event receiver.
       WakeMeUp w= new WakeMeUp();

       // Instantiates the event source.
       AlarmClock clock = new AlarmClock();

       // I want to able to get this event inside Excel VBA space.
      <big> clock.Alarm += new AlarmEventHandler(w.AlarmRang);</big>

       clock.Start();
 }