C#实现关机重启及注销实例代码

using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.Runtime.InteropServices;using System.Threading;namespace shutdowncodes{ public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.GroupBox groupBox1; private System.Windows.Forms.TextBox textBox1; private System.Windows.Forms.Button button1; private System.Windows.Forms.Button button2; private System.Windows.Forms.Button button3; private System.ComponentModel.IContainer components; [StructLayout(LayoutKind.Sequential, Pack=1)] public struct TokPriv1Luid {  public int Count;  public long Luid;  public int Attr; } [DllImport("kernel32.dll", ExactSpelling=true)]  // GetCurrentProcess函数返回当前进程的一个句柄 public static extern IntPtr GetCurrentProcess(); [DllImport("advapi32.dll", ExactSpelling=true, SetLastError=true)]  // OpenProcessToken函数打开一个进程的访问代号 public static extern bool OpenProcessToken(IntPtr ProcessHandles, int DesiredAccess, ref IntPtr TokenHandle); [DllImport("advapi32.dll", SetLastError=true)]  // LookupPrivilegeValue函数获得本地唯一的标示符(LUID)，用于在特定的系统中  // 表示特定的优先权。 public static extern bool LookupPrivilegeValue(string lpSystemName, string lpName, ref long lpLuid); // AdjustTokenPrivileges函数允许或者禁用指定访问记号的优先权。 // 允许或者禁用优先权需要TOKEN_ADJUST_PRIVILEGES访问权限。 [DllImport("advapi32.dll", ExactSpelling=true, SetLastError=true)] public static extern bool AdjustTokenPrivileges(IntPtr TokenHandle, bool DisableAllPrivileges, ref TokPriv1Luid NewState, int BufferLength, IntPtr PreviousState,IntPtr ReturnLength); // ExitWindowsEx函数可以注销，关机或者重新启动系统 [DllImport("user32.dll", ExactSpelling=true, SetLastError=true)] public static extern bool ExitWindowsEx(int flg, int rea); private System.Threading.Timer timer; private const int SE_PRIVILEGE_ENABLED = 0x00000002; private const int TOKEN_QUERY = 0x00000008; private const int TOKEN_ADJUST_PRIVILEGES = 0x00000020; private const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege"; private const int EWX_LOGOFF = 0x00000000;   // 注销 private const int EWX_SHUTDOWN = 0x00000001;  // 关机 private const int EWX_REBOOT = 0x00000002;   // 重启 private const int EWX_FORCE = 0x00000004; private static void RebootCommand(int flg) {  bool ok;  TokPriv1Luid tp;  IntPtr hproc = GetCurrentProcess(); // 得到当前的进程  IntPtr htok = IntPtr.Zero;  ok = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);  tp.Count = 1;  tp.Luid = 0;  tp.Attr = SE_PRIVILEGE_ENABLED;  ok = LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref tp.Luid);  ok = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);  ok = ExitWindowsEx(flg, 0); } public Form1() {  InitializeComponent(); } protected override void Dispose( bool disposing ) {  if( disposing )  {  if (components != null)  {   components.Dispose();  }  }  base.Dispose( disposing ); } #region Windows 窗体设计器生成的代码 private void InitializeComponent() {  this.groupBox1 = new System.Windows.Forms.GroupBox();  this.textBox1 = new System.Windows.Forms.TextBox();  this.button1 = new System.Windows.Forms.Button();  this.button2 = new System.Windows.Forms.Button();  this.button3 = new System.Windows.Forms.Button();  this.groupBox1.SuspendLayout();  this.SuspendLayout();  //  // groupBox1  //  this.groupBox1.Controls.Add(this.textBox1);  this.groupBox1.Location = new System.Drawing.Point(48, 24);  this.groupBox1.Name = "groupBox1";  this.groupBox1.Size = new System.Drawing.Size(192, 56);  this.groupBox1.TabIndex = 0;  this.groupBox1.TabStop = false;  this.groupBox1.Text = "系统已运行时间";  //  // textBox1  //  this.textBox1.Location = new System.Drawing.Point(24, 24);  this.textBox1.Name = "textBox1";  this.textBox1.ReadOnly = true;  this.textBox1.Size = new System.Drawing.Size(152, 21);  this.textBox1.TabIndex = 1;  this.textBox1.Text = "";  //  // button1  //  this.button1.Location = new System.Drawing.Point(16, 112);  this.button1.Name = "button1";  this.button1.Size = new System.Drawing.Size(64, 32);  this.button1.TabIndex = 1;  this.button1.Text = "关闭系统";  this.button1.Click += new System.EventHandler(this.button1_Click);  //  // button2  //  this.button2.Location = new System.Drawing.Point(112, 112);  this.button2.Name = "button2";  this.button2.Size = new System.Drawing.Size(64, 32);  this.button2.TabIndex = 2;  this.button2.Text = "注销系统";  this.button2.Click += new System.EventHandler(this.button2_Click);  //  // button3  //  this.button3.Location = new System.Drawing.Point(208, 112);  this.button3.Name = "button3";  this.button3.Size = new System.Drawing.Size(64, 32);  this.button3.TabIndex = 3;  this.button3.Text = "重启系统";  this.button3.Click += new System.EventHandler(this.button3_Click);  //  // Form1  //  this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);  this.ClientSize = new System.Drawing.Size(296, 173);  this.Controls.Add(this.button3);  this.Controls.Add(this.button2);  this.Controls.Add(this.button1);  this.Controls.Add(this.groupBox1);  this.Name = "Form1";  this.Text = "简单的关机程序";  this.Load += new System.EventHandler(this.Form1_Load);  this.groupBox1.ResumeLayout(false);  this.ResumeLayout(false); } #endregion /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() {  Application.Run(new Form1()); } private void button1_Click(object sender, System.EventArgs e) {  RebootCommand(EWX_SHUTDOWN + EWX_FORCE); } private void button2_Click(object sender, System.EventArgs e) {  RebootCommand(EWX_LOGOFF + EWX_FORCE); } private void button3_Click(object sender, System.EventArgs e) {  RebootCommand(EWX_REBOOT + EWX_FORCE); } private void Form1_Load(object sender, System.EventArgs e) {  textBox1.Text = (Environment.TickCount / (1000 * 60)).ToString() + "分钟";  // 每1秒钟更新一次TextBox上显示的系统运行时间  timer = new System.Threading.Timer(new TimerCallback(OnTimer), null, 0, 1000); } // 获得系统已运行的时间 private void OnTimer(object state) {  textBox1.Text = (Environment.TickCount / (1000 * 60)).ToString() + "分钟";  textBox1.Refresh(); } }}