RT，意思就是winform运行的时候不允许关机，重启，屏保，注销等。

C#连BIOS功能调用都做不了，想阻止关机，不太容易啊，用户用手一按电源键，完蛋！！

呵呵  楼上的真有意思  什么软件也阻止不了按电源啊 …………呵呵

把机箱黑盒了
用软件完全控制关机开机

^_^，这个硬件上已经做处理了，在电源键上接了1000V的电源线头，裸露的，当有用户想按时可以截获事件，并且让用户return为0，可以防止硬件关机，现在就是软件关机重启等比较麻烦，高手们帮忙想想办法呀，谢谢了

         #region  ********************************  加载system的处理关机的dll  ************************
        [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;
        #endregion
 
        #region  ********************************  关机消息响应  *************************************
        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);
        }
        #endregion

太牛了，我去试试看哈，谢谢了朋友

晕啊，这是软件关机的代码啊，不是屏蔽关机或重启的代码啊

UPUPUPUUPUUPUPUPUP

用钩子处理
        internal const int EWX_SHUTDOWN = 0x00000001;   
         internal const int EWX_REBOOT = 0x00000002;  
        protected override void WndProc(ref Message message)
        {
            switch (message.Msg)
            {
 
                case EWX_SHUTDOWN :...;
                                break;

                case EWX_REBOOT :...;
                                break;

                return;
            }
         base.WndProc(ref message);
        }

大概是这个意思