Question

I need to close my application in the same way, whether it is closed directly or closed from task bar or task manager. I need to do some pre-settings and automatically generate log files each time before the application is closed…

For example I give following effect to my application form each time it exits, but this effect is not shown when I close my application from task bar or task manager…

    System.Windows.Forms.Timer closeTimer = new System.Windows.Forms.Timer();

    void lblClose_Click(object sender, System.EventArgs e)
    {
        closeTimer.Tick += new EventHandler(closeTimer_Tick);
        closeTimer.Interval = 10;
        closeTimer.Start();            
    }

    void closeTimer_Tick(object sender, EventArgs e)
    {
        int a = (int)(this.Opacity * 100);
        a--;
        this.Opacity = ((double)a / 100);
        if ((this.Opacity*100) == 0)
            this.Close();
    }

Answer 1

I’m assuming your app is a System.Windows.Forms.Application. If so you can listen to ApplicationExit event.

So in Main, do something like:

Application.ApplicationExit += (s,e) =>
{
   // Your exit code.
};

See http://msdn.microsoft.com/en-us/library/system.windows.forms.application.applicationexit.aspx