How to use Application.ThreadExit in non-WindowsForms Application?(Multithreaded app, need to check main thread with event)

Question

My application needs to know when the main thread ends and I found Application.ThreadExit handler. However I can't figure out how to use it. All the examples show Application.ThreadExit += new EventHandler(AppEvents.OnThreadExit);. But this is for Windows Forms, My application is a Console Application. Thank you!

Answer 1

You can write your code as shown below for console as well :-

Application.ThreadExit += new EventHandler(OnThreadExit);

which will subscribe the event it means whenever thread will exit it will call OnThreadExit method as shown below :-

public static void OnThreadExit(object sender, EventArgs e) 
{
        Console.WriteLine("thread is shutting down.");
}

Answer 2

In console, I always use the SetConsoleCtrlHandler delegate, with DllImport

After class declaration, use:

  private delegate bool ConsoleEventDelegate(int eventType);
        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool SetConsoleCtrlHandler(ConsoleEventDelegate callback, bool add);

And then in program, set the handler:

var handler = new ConsoleEventDelegate(ConsoleEventCallback);
             SetConsoleCtrlHandler(handler, true);

static bool ConsoleEventCallback(int eventType)
{
    if (eventType == 2)
    {
        //Main thread Console is being closed!
       // handle other threads
    }
    Thread.Sleep(5000);
    return false;
}