Ending the Program by pressing the Escape-Button

[stackoverflow_user_d6256600adcbc1f532659eb15ace64c0]

Hi,

My problem is that i want to close the program instantly when the “Escape” Button on the EV3 is pressed(even if its in a while-loop or something similar)… My current code looks like this:

using System;  
using MonoBrickFirmware;  
using MonoBrickFirmware.Movement;  
using MonoBrickFirmware.Display;  
using MonoBrickFirmware.Sensors;  
using MonoBrickFirmware.UserInput;  
using System.Threading; 

namespace ColorSensorExample  
{  
	class R_Main  
	{  
		public static void Main (string[] args)
		{  
			R_Main main = new R_Main ();
		}

		public R_Main()
		{
			  
			var sensor = new EV3ColorSensor (SensorPort.In2);  
			ButtonEvents buts = new ButtonEvents ();  
			buts.EscapePressed += new Action(onEscape);
			while (true) 
			{
				//Main-Code
			}
		}

		private void onEscape()
		{
			EventWaitHandle stopped = new ManualResetEvent (false);
			stopped.Set ();  
		}			  
	} 
}

But it does not work. While using the “KeyTest”-Example from the Monobrick Homepage, there is no problem.

[Jacek S]

Hi,
Your program never ends because you must start main loop in separate thread and place wait event at the end of main thread.

using System.Threading;
using System.Threading.Tasks;
using MonoBrickFirmware.UserInput;

namespace EV3Program
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            ManualResetEvent terminateProgram = new ManualResetEvent(false);
            ButtonEvents buts = new ButtonEvents();

            buts.EscapePressed += () =>
            {
                terminateProgram.Set();
            };

            var myLogic = new MyLogic();

            Task.Factory.StartNew(() => myLogic.Run());

            terminateProgram.WaitOne();
        }
    }
}

Jacek

[stackoverflow_user_d6256600adcbc1f532659eb15ace64c0]

Thanks so much it works perfectly now!

[Author]

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