Event/function when Runtime Close for any reason

[andrea]

Hi,

I would like to reset a tag (so PLC variable) when the application closes for any reason (ALT + F4, task manager, power off the panel pc or the entire machine).
Where could I write this code?

Thank you

[Edmund]

Hi!

There is no built in function/event that occurs when the application is closed, but you can script your own (ONLY FOR PC TARGET!).

E.g.

Create a scriptmodule and paste the following code inside of it.

Code: Select all

namespace Neo.ApplicationFramework.Generated
{
    using System.Windows.Forms;
    using System;
    using System.Drawing;
    using Neo.ApplicationFramework.Tools;
    using Neo.ApplicationFramework.Common.Graphics.Logic;
    using Neo.ApplicationFramework.Controls;
    using Neo.ApplicationFramework.Interfaces;
    
    
    public partial class ScriptModule1
    {
	
		private System.Windows.Application application;
		private bool init = false;
	
		public void ListenForApplicationEvent()
		{
			if(!init)
			{
				application = System.Windows.Application.Current;
				application.Exit += new System.Windows.ExitEventHandler(AppExit);
				init = true;
			}
		}
		
		private void AppExit(object sender, System.Windows.ExitEventArgs e)
		{
			// Do whatever you want here :)
			MessageBox.Show("Closing");
		}
    }
}

And from any screen that is being used in runtime (best would the the start screen for the project), it´s alright if the screen is opened several times because in the script module is a memory (init) that handles that.

Code: Select all

		void Screen1_Opened(System.Object sender, System.EventArgs e)
		{
			Globals.ScriptModule1.ListenForApplicationEvent();
		}

Now the AppExit function is being fired at closing and you can do what ever you want with it.