CODEWITHSUNDEEP
c#processtimerperformance
jacobz
jacobz

Reputation: 3291

Do something if certain process is running without timer

I'm using a System.Timers.Timer to check if a certain process is running on an interval of 1000ms, and if so, to output it on a string, e.g.:

System.Timers.Timer bTimer = new System.Timers.Timer();
bTimer.Elapsed += new ElapsedEventHandler(ChangeText);
bTimer.Interval = 1000;
bTimer.Enabled = true;

private void ChangeText(object source, ElapsedEventArgs e)
{
    foreach (Process clsProcess in Process.GetProcesses())
    {
        if (clsProcess.ProcessName.Contains("notepad"))
        {
            lblText.Text = "Notepad is running.";
        }
        else
        {
            lblText.Text = "Notepad is not running.";
        }
    }
}

Now I was wondering, is there a more efficient way to do this, without a timer? For example something that monitors running processes without having to read the memory every second?

Upvotes: 2

Views: 140

Answers (1)

L.B
L.B

Reputation: 116128

var process = Process.GetProcessesByName("notepad").FirstOrDefault();
if (process == null)
{
    MessageBox.Show("process is not running");
}
else
{
    process.EnableRaisingEvents = true;
    process.Exited += (sender, args) =>
        {
            MessageBox.Show("process exited");
        };
}

Upvotes: 1

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