Timer Computer Shutdown

• Download source files - 89.8 Kb
• Download demo project - 14.4 Kb

Introduction

Timer Computer Shutdown application provides functionality to shutdown, restart, stand by, hibernate or log off supported computers, at a selected date and time that has yet to elapse. Functionality of the shutdown modes has been provided by a WindowsController.cs class from http://www.mentalis.org/soft/class.qpx?id=7

WARNING: The "Brute" option will force termination of all running processes, any unsaved data will be lost; guaranteeing a shutdown. This option has been designed to close applications which produce a prompt upon closing.

The code

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;

using Org.Mentalis.Utilities;

namespace TimerComputerShutdown
{
    /// <summary>
    /// Summary description for TimerComputerShutdown.
    /// </summary>
    public class TimerComputerShutdown : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Label 
              labelWhatDoYouWantTheComputerToDo;
        private System.Windows.Forms.ComboBox comboBox;
        private System.Windows.Forms.Label 
              labelSelectDateTimeToShutdownComputer;
        private System.Windows.Forms.DateTimePicker 
              dateTimePicker;
        private System.Windows.Forms.Label labelDateTimeNow;
        private System.Windows.Forms.Label 
              labelDateTimeShutdown;
        private System.Windows.Forms.Label labelNow;
        private System.Windows.Forms.Label labelShutdown;
        private System.Windows.Forms.Panel panelParent;
        private System.Windows.Forms.Panel panelChild;
        private System.Windows.Forms.CheckBox checkBox;
        private System.Windows.Forms.Button buttonAbout; 
        private System.Windows.Forms.Button buttonCancel;
        private System.Windows.Forms.Button buttonInvoke;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container 
                               components = null;
        
        private System.Threading.ThreadStart threadStart;
        private System.Threading.Thread thread;

        [DllImport("user32.dll")] private static extern 
            bool SetForegroundWindow(IntPtr hWnd);
        [DllImport("user32.dll")] private static extern 
            bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
        [DllImport("user32.dll")] private static extern 
            bool IsIconic(IntPtr hWnd);

        private const int SW_HIDE = 0;
        private const int SW_SHOWNORMAL = 1;
        private const int SW_SHOWMINIMIZED = 2;
        private const int SW_SHOWMAXIMIZED = 3;
        private const int SW_SHOWNOACTIVATE = 4;
        private const int SW_RESTORE = 9;
        private const int SW_SHOWDEFAULT = 10;
        
        public TimerComputerShutdown()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code 
            // after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
                    ...
        }
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new TimerComputerShutdown());
        }

        private void TimerComputerShutdown_Load
                 (object sender, System.EventArgs e)
        {
            this.threadStart = new System.Threading.
                             ThreadStart(Application_Tick);
            this.thread = new System.Threading.Thread(threadStart);
            
            this.panelChild.Visible = false;

            this.dateTimePicker.Value = System.DateTime.Now;
        }

        protected override void OnClosing(CancelEventArgs e)
        {
            try
            {
                if (this.thread.IsAlive)
                {
                    this.thread.Abort();
                    this.thread.Join();
                }
            }
            catch (System.Threading.ThreadAbortException 
                                     threadAbortException)
            {
                System.Threading.Thread.ResetAbort();
            }
            catch (System.Exception exception)
            {
                
            }
            finally
            {
                System.Windows.Forms.Application.Exit();
            }

            base.OnClosing(e);
        }

        public void Computer_Shutdown()
        {
            if (this.checkBox.Checked)
            {
                System.Diagnostics.Process[] processes = 
                   System.Diagnostics.Process.GetProcesses();

                foreach (System.Diagnostics.Process 
                           processParent in processes)
                {
                    System.Diagnostics.Process[] processNames = 
                                 System.Diagnostics.Process.
                                 GetProcessesByName
                                 (processParent.ProcessName);
    
                    foreach (System.Diagnostics.Process 
                            processChild in processNames)
                    {
                        try
                        {
                            System.IntPtr hWnd = 
                                   processChild.MainWindowHandle;
                            
                            if (IsIconic(hWnd))
                            {
                                ShowWindowAsync(hWnd, SW_RESTORE);
                            }
                    
                            SetForegroundWindow(hWnd);
                            
                            if (!(processChild.
                               MainWindowTitle.Equals(this.Text)))
                            {
                                processChild.CloseMainWindow();
                                processChild.Kill();
                                processChild.WaitForExit();
                            }
                        }
                        catch (System.Exception exception)
                        {

                        }
                    }
                }
            }

            System.Windows.Forms.Application.Exit();

            switch (this.comboBox.SelectedIndex)
            {
                case 0:
                    Org.Mentalis.Utilities.
                            WindowsController.ExitWindows
                            (RestartOptions.PowerOff, false);
                    break;
                case 1:
                    Org.Mentalis.Utilities.WindowsController.
                         ExitWindows(RestartOptions.Reboot, false);
                    break;
                case 2:
                    Org.Mentalis.Utilities.WindowsController.
                         ExitWindows(RestartOptions.Suspend, false);
                    break;
                case 3:
                    Org.Mentalis.Utilities.WindowsController.
                         ExitWindows(RestartOptions.Hibernate, false);
                    break;
                case 4:
                    Org.Mentalis.Utilities.WindowsController.
                         ExitWindows(RestartOptions.LogOff, false);
                    break;
            }
        }
        
        private void comboBox_SelectedIndexChanged
                 (object sender, System.EventArgs e)
        {
            this.labelSelectDateTimeToShutdownComputer.Text =
                 "Select Date/Time to" + " " + 
                 this.comboBox.SelectedItem.ToString() + 
                 " " + "computer:";
            this.labelDateTimeShutdown.Text = "Date/Time" + 
                 " " + this.comboBox.SelectedItem.ToString() + ":";
        }

        private void checkBox_CheckedChanged(object sender, 
                                        System.EventArgs e)
        {
            if (this.checkBox.Checked)
            {
                Warning warning = new Warning();
                warning.ShowDialog();
            }
        }

        public bool dateTimePicker_Validated()
        {
            if (this.dateTimePicker.Value.
                   CompareTo(System.DateTime.Now) < 0)
            {
                Error error = new Error();
                error.ShowDialog();

                this.dateTimePicker.Value = System.DateTime.Now;

                return false;
            }
            else
            {
                return true;
            }
        }

        private void dateTimePicker_ValueChanged
                 (object sender, System.EventArgs e)
        {
            this.labelShutdown.Text = 
                   this.dateTimePicker.Value.ToString();
        }

        public void Application_Tick()
        {
            while (!(this.labelNow.Text.ToString().
                   Equals(this.dateTimePicker.Value.ToString())))
            {
                this.labelNow.Text = System.DateTime.Now.ToString();
            }

            this.Computer_Shutdown();
        }

        private void buttonAbout_Click(object sender, 
                                    System.EventArgs e)
        {
            About about = new About();

            about.ShowDialog();
        }

        private void buttonCancel_Click(object sender, 
                                      System.EventArgs e)
        {
            try
            {
                if (this.thread.IsAlive)
                {
                    this.thread.Abort();
                    this.thread.Join();
                }
            }
            catch (System.Threading.
                   ThreadStateException threadStateException)
            {
                System.Threading.Thread.ResetAbort();
            }
            catch (System.Exception exception)
            {
                
            }
            finally
            {
                System.Windows.Forms.Application.Exit();
            }
        }
        
        private void buttonInvoke_Click(object sender, 
                                    System.EventArgs e)
        {
            if (this.dateTimePicker_Validated())
            {
                this.thread.Start();

                this.comboBox.Enabled = false;
                this.dateTimePicker.Enabled = false;
                this.panelChild.Visible = true;
                this.buttonInvoke.Enabled = false;
            }
        }
    }
}

That's all!

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