求C#屏蔽快捷键代码.

Question

屏蔽Alt+Tab,win,Alt+F4,Ctrl+AltDel

Answer 1

如果是在窗体内捕捉,可以通过捕获KeyDown事件来判断按下的按键,然后达到屏蔽的目的

Answer 2

另外,还可以通过调用user32.dll实现.using System.Runtime.InteropServices;//其他using就省略了namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool RegisterHotKey(
         IntPtr hWnd,
          int id,
         int fsModifiers,//alt = 1, none = 0, win = 8;
         Keys virtualKey
        );        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool UnregisterHotKey(
         IntPtr hWnd,
         int id
        );
        public Form1()
        {
            InitializeComponent();
        }        protected override void WndProc(ref Message m)
        {
            const int WM_HOTKEY = 0x0312;//按快捷键
            switch (m.Msg)
            {
                case WM_HOTKEY:
                    ProcessHotkey();//调用主处理程序
                    break;
            }
            base.WndProc(ref m);
        }
        void ProcessHotkey()
        {
            //这里是处理快捷键的地方,为空就好了
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            RegisterHotKey(Handle, 100, 1, Keys.F4);
        }
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            UnregisterHotKey(Handle, 100);
        }
    }
}