winform中的关机，重启实现代码

首先在表示层添加Command.cs，Command里的代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Windows.Forms;


namespace GuardCheckIn
{
    public static class Command
    {
        //重启，关机
        [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;
        internal const int EWX_FORCEIFHUNG = 0x00000010;
        public static 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);
        }
        //全屏
        [DllImport("user32.dll", EntryPoint = "ShowWindow")]
        public static extern int ShowWindow(int hwnd, int nCmdShow);
        public const int SW_SHOW = 5;
        public const int SW_HIDE = 0;


        [DllImport("user32.dll", EntryPoint = "SystemParametersInfo")]
        private static extern int SystemParametersInfo(int uAction, int uParam, ref Rectangle lpvParam, int fuWinIni);
        public const int SPIF_UPDATEINIFILE = 0x1;
        public const int SPI_SETWORKAREA = 47;
        public const int SPI_GETWORKAREA = 48;
        [DllImport("user32.dll", EntryPoint = "FindWindow")]
        private static extern int FindWindow(string lpClassName, string lpWindowName);
       // Rectangle rect = new Rectangle();


        public static bool SetFullScreen(ref Rectangle rectOld)
        {
            int Hwnd = 0;
            Hwnd = FindWindow("Shell_TrayWnd", null);
            if (Hwnd == 0) return false;


            ShowWindow(Hwnd, SW_HIDE);
            Rectangle rectFull = Screen.PrimaryScreen.Bounds;
            SystemParametersInfo(SPI_GETWORKAREA, 0, ref rectOld, SPIF_UPDATEINIFILE);//get   
            SystemParametersInfo(SPI_SETWORKAREA, 0, ref rectFull, SPIF_UPDATEINIFILE);//set   
            return true;
        }
 
    }
}

然后再后台写下代码：

     public partial class frmGuardCheckIn : Form
    {
        public frmGuardCheckIn()
        {
            InitializeComponent(); 
        }
        //重启，关机
        [DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]
        internal static extern bool ExitWindowsEx(int flg, int rea);
        internal const int EWX_SHUTDOWN = 0x00000001;
        internal const int EWX_REBOOT = 0x00000002;
        Rectangle rect = new Rectangle();
    }
然后在重启和关机的Click事件里：
         //重启
          private void btnRestart_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("确定您要重启吗？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning) == DialogResult.OK)
            {
                Command.DoExitWin(EWX_REBOOT);//此代码实现重启功能
            }
        }
        //关机
        private void btnClose_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("确定您要关机吗？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning) == DialogResult.OK)
            {
                Command.DoExitWin(EWX_SHUTDOWN);//此代码实现关机功能
            }
        }