WF程序
如何让编写的程序不能通过组合键启用任务管理器来结束进程
[解决办法]
路过帮顶...期待中...
[解决办法]
http://topic.csdn.net/u/20090203/16/1b8c7268-3cfd-473f-83b3-727151abb915.html
http://blog.csdn.net/panpanloveruth/archive/2007/06/20/1659236.aspx
[解决办法]
C#不能屏蔽CTRL+ALT+DEL，不过用另一种方法...就是用Kill方法在TIMER中若发现taskmgr.exe就Kill掉就好了...
[解决办法]

//这是一个HOOK类
public class myHook
    {
        private IntPtr pKeyboardHook = IntPtr.Zero;//键盘钩子句柄
        public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);// 钩子委托声明
        //键盘钩子委托实例不能省略变量
        private HookProc KeyboardHookProcedure;
        //底层键盘钩子
        public const int idHook = 13;
        //安装钩子
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn,
            IntPtr pInstance, int threadId);
        //卸载钩子
        [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)]
        public static extern bool UnhookWindowsHookEx(IntPtr pHookHandle);
        //键盘钩子处理函数  
        private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
        {
            KeyMSG m = (KeyMSG)Marshal.PtrToStructure(lParam, typeof(KeyMSG));
            if (pKeyboardHook != IntPtr.Zero)
            {
                switch (((Keys)m.vkCode))
                {
                    case Keys.LWin:
                    case Keys.RWin:
                    case Keys.Delete:
                    case Keys.Alt:
                    case Keys.Escape:
                    case Keys.F4:
                    case Keys.Control: 
 
                    case Keys.Tab:
                        return 1;
                }
            }
            return 0;
        }
        //安装钩子
        public bool InsertHook()
        {
            IntPtr pIn = (IntPtr)4194304;
            if (this.pKeyboardHook == IntPtr.Zero)
            {
                this.KeyboardHookProcedure = new HookProc(KeyboardHookProc);
                this.pKeyboardHook = SetWindowsHookEx(idHook, KeyboardHookProcedure, pIn, 0);
                if (this.pKeyboardHook == IntPtr.Zero)
                {
                    this.UnInsertHook();
                    return false;
                }
            }

            return true;
        }
        //卸载钩子
        public bool UnInsertHook()
        {
            bool result = true;
            if (this.pKeyboardHook != IntPtr.Zero)
            {
                result = (UnhookWindowsHookEx(this.pKeyboardHook) && result);
                this.pKeyboardHook = IntPtr.Zero;
            }
            return result;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct KeyMSG
        {
            public int vkCode;
            public int scanCode;
            public int flags; 
 
            public int time;
            public int dwExtraInfo;
        }
    }

[解决办法]
http://blog.csdn.net/zdming2000/category/789570.aspx
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