using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;using System.Diagnostics;using System.Runtime.InteropServices;using Microsoft.Win32;namespace 关机一键锁定{    /// <summary>    /// MainWindow.xaml 的交互逻辑    /// </summary>    public partial class MainWindow : Window    {        public MainWindow()        {            InitializeComponent();        }               #region 隐藏、显示任务栏         [DllImport("user32.dll")]        public static extern IntPtr FindWindow(String className, String captionName);        [DllImport("user32.dll")]        public static extern bool ShowWindow(IntPtr hwnd, uint nCmdShow);        //隐藏光标        [DllImport("user32.dll", EntryPoint = "ShowCursor")]        public static extern bool ShowCursor(bool bShow);        //ShowCursor(false);        private void btnHideToolBar_Click(object sender, RoutedEventArgs e)        {            // 获得任务栏和开始菜单的句柄            var rwl = FindWindow("Shell_TrayWnd", null);            var rwl2 = FindWindow("Button", null);            if (btnHideToolBar.Content == "隐藏")//当nCmdShow=0---隐藏；nCmdShow=1---显示            {                ShowWindow(rwl2,1 );                ShowWindow(rwl, 1);                ShowCursor(true);                btnHideToolBar.Content = "显示";            }            else            {                               ShowWindow(rwl2, 0);                ShowWindow(rwl, 0);                ShowCursor(false);                btnHideToolBar.Content = "隐藏";            }        }        #endregion//禁用、启用任务管理器        private void btnManageForm_Click(object sender, RoutedEventArgs e)        {                        if (btnManageForm.Content == "禁用")//当nCmdShow=0---隐藏；nCmdShow=1---显示            {                //禁用本机的任务管理器                Registry.SetValue("HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", "DisableTaskMgr", 1);                //禁用当前用户任务管理器                Registry.SetValue("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", "DisableTaskMgr", 1);                btnManageForm.Content = "启用";            }            else            {                //禁用本机的任务管理器                Registry.SetValue("HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", "DisableTaskMgr", 0);                //禁用当前用户任务管理器                Registry.SetValue("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System", "DisableTaskMgr", 0);                btnManageForm.Content = "禁用";            }        }           }}