How an Application konw an event is triggered in the DLL

tttbag

Hi guys,

How an Application konw an event is triggered in the DLL?

For example i have a time elapsed event implemented in a dll.

namespace timerEvent
{

    public interface Inmea
    {

        void sendData();

    }

    private static Timer aTimer = new Timer(1000);

    public void sendData()
    {
           aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);

           aTimer.Enabled = true;
    }

    private void OnTimedEvent(object source, ElapsedEventArgs e)
    {
	return "TimerEvent From DLL";
    }

}

Then the function sendData() will be called by a C# App, How the application the event is triggered?

Or to say, how can i pass the value "TimerEvent From DLL" back to App, when every time the event is triggered in the dll

Thanks.

bag