C# - Catching ctrl+c event example

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static ConsoleEventDelegate handler;
        private delegate bool ConsoleEventDelegate(int eventType);
        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool SetConsoleCtrlHandler(ConsoleEventDelegate callback, bool add);

        private static MyExternalProcess p1;

        public static void Main()
        {
            Console.CancelKeyPress += delegate
            {
                killEveryoneOnExit();
            };

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

            p1 = new MyExternalProcess();
            p1.startProcess();
        }

        public static void killEveryoneOnExit()
        {
            p1.kill();
        }

        static bool ConsoleEventCallback(int eventType)
        {
            if (eventType == 2)
            {
                killEveryoneOnExit();
            }
            return false;
        }
    }

    class MyExternalProcess
    {

        private bool shouldContinue = true;

        public void startProcess()
        {
            while (shouldContinue)
            {
                Console.WriteLine("Hello");
                Thread.Sleep(1000);
            }
        }

        public void kill()
        {
            // do some stuff
            shouldContinue = false;
            Console.WriteLine("Bye bye");
        }
    }
}