(二).程序简单示例图
如果您感兴趣的话，还可以继续增加好多功能，比如：重启机器/待机/睡眠等状态，还有倒计时功能
(三).代码
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;
namespace ShutDownComputer
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
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
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.timer1 = new System.Timers.Timer();
((System.ComponentModel.ISupportInitialize)(this.timer1)).BeginInit();
this.SuspendLayout();
//
// button1
//
this.button1.BackColor = System.Drawing.Color.Olive;
this.button1.Location = new System.Drawing.Point(88, 184);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "开始";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// label1
//
this.label1.Location = new System.Drawing.Point(24, 80);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(120, 23);
this.label1.TabIndex = 2;
this.label1.Text = "您想让你的计算机在";
//
// comboBox1
//
this.comboBox1.Items.AddRange(new object[] {
"10",
"20",
"30",
"40",
"50",
"60",
"70",
"80",
"90",
"100",
"110",
"120"});
this.comboBox1.Location = new System.Drawing.Point(64, 104);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(88, 20);
this.comboBox1.TabIndex = 3;
this.comboBox1.Text = "30";
//
// label2
//
this.label2.Location = new System.Drawing.Point(152, 112);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(104, 16);
this.label2.TabIndex = 4;
this.label2.Text = "分之后自动关机";
//
// label3
//
this.label3.Location = new System.Drawing.Point(32, 32);
this.label3.Name = "label3";
this.label3.TabIndex = 5;
//
// timer1
//
this.timer1.Interval = 1000;
this.timer1.SynchronizingObject = this;
this.timer1.Elapsed += new System.Timers.ElapsedEventHandler(this.timer1_Elapsed);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
this.ClientSize = new System.Drawing.Size(280, 238);
this.Controls.Add(this.label3);
this.Controls.Add(this.label2);
this.Controls.Add(this.comboBox1);
this.Controls.Add(this.label1);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.timer1)).EndInit();
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 Form1_Load(object sender, System.EventArgs e)
{
}
[StructLayout(LayoutKind.Sequential, Pack=1)]
internal struct TokPriv1Luid
{
public int Count;
public long Luid;
public int Attr;
}
[DllImport("kernel32.dll", ExactSpelling=true) ]
internal static extern IntPtr GetCurrentProcess();
[DllImport("advapi32.dll", ExactSpelling=true, SetLastError=true) ]
internal static extern bool OpenProcessToken( IntPtr h, int acc, ref IntPtr phtok );
[DllImport("advapi32.dll", SetLastError=true) ]
internal static extern bool LookupPrivilegeValue( string host, string name, ref long pluid );
[DllImport("advapi32.dll", ExactSpelling=true, SetLastError=true) ]
internal static extern bool AdjustTokenPrivileges( IntPtr htok, bool disall,
ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen );
[DllImport("user32.dll", ExactSpelling=true, SetLastError=true) ]
internal static extern bool ExitWindowsEx( int flg, int rea );
internal const int SE_PRIVILEGE_ENABLED = 0x00000002;
internal const int TOKEN_QUERY = 0x00000008;
internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;
internal const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";
internal const int EWX_LOGOFF = 0x00000000;
internal const int EWX_SHUTDOWN = 0x00000001;
internal const int EWX_REBOOT = 0x00000002;
internal const int EWX_FORCE = 0x00000004;
internal const int EWX_POWEROFF = 0x00000008;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Timers.Timer timer1;
internal const int EWX_FORCEIFHUNG = 0x00000010;
private void DoExitWin( int flg )
{
bool ok;
TokPriv1Luid tp;
IntPtr hproc = GetCurrentProcess();
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 );
}
DateTime ShutDownItTime = new DateTime();
int status = 0; //0: 表示还没有开始计时关机; 1: 已经开始计时关机
private void button1_Click(object sender, System.EventArgs e)
{
if(status == 1)
{
this.timer1.Enabled = false;
status = 0;
this.button1.Text = "开始";
return;
}
int intTime = 0;
if(this.comboBox1.Text.Length == 0)
{
this.label3.Text = "请输入时间!";
return;
}
try
{
intTime = int.Parse(this.comboBox1.Text);
}
catch
{
this.label3.Text = "时间只能为整数，请重新输入!";
}
this.ShutDownItTime=DateTime.Now.AddMinutes(intTime);
this.timer1.Enabled = true;
status = 1;
this.button1.Text = "停止";
}
private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
if(DateTime.Now >= this.ShutDownItTime)
{
this.label3.Text = "正在关机
";
DoExitWin(EWX_SHUTDOWN);
}
}
}
}
(三).源程序代码下载
