CODEWITHSUNDEEP
c#
whytheq
whytheq

Reputation: 35567

Correct EventHandler to tell me when notepad closed

I have the following:

class Program {

    static void Main(string[] args) {

        Process pr;
        pr = new Process();
        pr.StartInfo = new ProcessStartInfo(@"notepad.exe");
        pr.Disposed += new EventHandler(YouClosedNotePad);
        pr.Start();

        Console.WriteLine("press [enter] to exit");
        Console.ReadLine();
    }
    static void YouClosedNotePad(object sender, EventArgs e) {
        Console.WriteLine("thanks for closing notepad");
    }

}

When I close Notepad I don't get the message I was hoping to get - how do I amend so that closing notepad is returned to the console?

Upvotes: 3

Views: 221

Answers (2)

Sergey Berezovskiy
Sergey Berezovskiy

Reputation: 236248

You need two things - enable raising events, and subscribing to Exited event:

    static void Main(string[] args)
    {            
        Process pr;
        pr = new Process();
        pr.StartInfo = new ProcessStartInfo(@"notepad.exe");
        pr.EnableRaisingEvents = true; // first thing
        pr.Exited += pr_Exited; // second thing
        pr.Start();

        Console.WriteLine("press [enter] to exit");
        Console.ReadLine();

        Console.ReadKey(); 
    }

    static void pr_Exited(object sender, EventArgs e)
    {
        Console.WriteLine("exited");
    }

Upvotes: 7

competent_tech
competent_tech

Reputation: 44931

You want to use the Exited event instead of Disposed:

pr.Exited += new EventHandler(YouClosedNotePad);

You also need to ensure that the EnableRaisingEvents property is set to true:

pr.EnableRaisingEvents = true;

Upvotes: 0

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