C# 屏蔽系统的ctrl+c/x/v组合键

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace ShieldCtrlV{ public partial class Frm_Main : Form { public Frm_Main() { InitializeComponent(); } private void richTextBox1_KeyDown(object sender, KeyEventArgs e) { if (e.Control && e.KeyCode == Keys.V)//若按下Ctrl V组合键 { e.Handled = true;//屏蔽Ctrl V组合按键 MessageBox.Show("Ctrl V组合键已屏蔽","信息提示"); } if (e.Control && e.KeyCode == Keys.X)//若按下Ctrl X组合键 { e.Handled = true;//屏蔽Ctrl X组合按键 MessageBox.Show("Ctrl X组合键已屏蔽", "信息提示"); } if (e.Control && e.KeyCode == Keys.C)//若按下Ctrl C组合键 { e.Handled = true;//屏蔽Ctrl C组合按键 MessageBox.Show("Ctrl C组合键已屏蔽", "信息提示"); } } }}