winform

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("正在关机……"); 
         // 修改 EWX_SHUTDOWN 或者 EWX_LOGOFF, EWX_REBOOT等实现不同得功能。 
         // 在XP下可以看到帮助信息，以得到不同得参数 
         // SHUTDOWN /? 
         DoExitWin(EWX_SHUTDOWN); 
      } 
}