C#關機程式

using System;

using System.Runtime.InteropServices;

  

class shoutdown{

   [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;

   private 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 );

   }

      public static void Main()

      {

         Console.WriteLine("正在關機……");

         // 修改 EWX_SHUTDOWN 或者 EWX_LOGOFF, EWX_REBOOT等實現不同得功能。

         // 在XP下可以看到協助資訊，以得到不同得參數

         // SHUTDOWN /?

         DoExitWin(EWX_SHUTDOWN);

      }

}