Shutdown computer

Question

Hi All,
What try to do;

If I want shutdown the computer at the time I need, then skip all the windows ask about saving file, What code to add bellow.
How?.
somebody can show me.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;
using System.Management;

namespace Shutdown_
{

    public partial class Form1 : Form
    {
        private System.Windows.Forms.Timer timer1;
        private int counter = 10;


        public Form1()
        {
            InitializeComponent();

            timer1 = new System.Windows.Forms.Timer();

            timer1 = new System.Windows.Forms.Timer();
            timer1.Tick += new EventHandler(timer1_Tick);
            timer1.Interval = 1000; // 1 second
            timer1.Start();
            textBox1.Text = counter.ToString();
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            counter--;
            textBox1.Text = counter.ToString();

            if (counter == 0)
            {
                timer1.Stop();

                ManagementBaseObject mboShutdown = null;
                ManagementClass mcWin32 = new ManagementClass("Win32_OperatingSystem");
                mcWin32.Get();

                mcWin32.Scope.Options.EnablePrivileges = true;
                ManagementBaseObject mboShutdownParams =
                         mcWin32.GetMethodParameters("Win32Shutdown");

                mboShutdownParams["Flags"] = "1";
                mboShutdownParams["Reserved"] = "0";
                foreach (ManagementObject manObj in mcWin32.GetInstances())
                {
                    mboShutdown = manObj.InvokeMethod("Win32Shutdown", mboShutdownParams, null);
                }

            }

            else if (counter > 0)
            {
                this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.Some);
                this.KeyPreview = true;
            }
        }
        private void Some(object sender, System.Windows.Forms.KeyEventArgs e)
        {
            if (e.KeyCode == Keys.F2 && e.Modifiers == Keys.Alt)
            {
                System.Environment.Exit(0);
            }
        }



    }
}


thank.

Answer 1

If I want shutdown the computer at the time I need, then skip all the windows ask about saving file, What code to add bellow.

If you want to force the Shutdown, use the EWX_FORCE flag with ExitWindowsEx
like in this thread

Answer 2

Hi jackjjun, thank for your feedback.

I follow your method but still have message before restart computer.

I try type something in Notepad then restart computer.

Answer 3

@MiPakTeh , based on my research, It is hard to use to c# code to skip all the windows that mention saving file.

However, I find a workaround to set Registry to shut down the computer directly.

First, Please Open Registry and Go to HKEY_USERS.DEFAULT\Control Panel\Desktop.

Second, Please click Edit > New > String Value.

Third, Please Give it the name AutoEndTasks and set Value data to 1 and click OK.

Finally, Please restart your computer to save the effect.

Based on my test, after I execute the above steps, I can use the code to shut down the computer directly.

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