CODEWITHSUNDEEP
c#processsystem-calls
Jack
Jack

Reputation: 16724

How to know when a process created by Process.Start() was closed?

I'm using this:

var proc2 = Process.Start(Path.GetFullPath(filename));
proc2.Exited += (_, __) =>
{
    MessageBox.Show("closed!");
};

But I close the window and don't get MessageBox.Show("closed!");. How to fix this?

Upvotes: 1

Views: 1571

Answers (4)

tumtumtum
tumtumtum

Reputation: 1162

You forgot to set the EnableRaisingEvents to true.

Also, you may want to create a Process with the constructor, set the ProcessStartInfo and then call Start after you register to listen to the event. Otherwise you have a race condition where the Process exits before you even register to listen for the event (unlikely I know, but not mathematically impossible).

var process = new Process();

process.StartInfo = new ProcessStartInfo(Path.GetFullPath(filename));
process.EnableRaisingEvents = true;

process.Exited += (a, b) =>
{
  MessageBox.Show("closed!");
};

process.Start();

Upvotes: 6

Tomer W
Tomer W

Reputation: 3443

you forget Enable Events

Process p;
p = Process.Start("cmd.exe");
p.EnableRaisingEvents = true;
p.Exited += (sender, ea) =>
            {
                  System.Windows.Forms.MessageBox.Show("Cmd was Exited");
            };

Upvotes: 4

oleksii
oleksii

Reputation: 35905

You need to set Process.EnableRaisingEvents to true.

Upvotes: 12

Adam Sweeney
Adam Sweeney

Reputation: 386

You can fire the alert after proc2.WaitForExit()

Upvotes: 3

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