分享-C#简单改键工具源码
今天研究全局钩子，参考一些资料，写了一个C#改键工具，只改一个键，现在把源码贴出来，大家有兴趣的可以多加几个键。求高手指正。只用福昕阅读器测试过。测试通过了。
下载地址http://download.csdn.net/detail/ooo7880000/4187121。免积分下载
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;using System.Diagnostics;using System.Runtime.InteropServices;namespace ChangeKeys{ /// <summary> /// 改键工具 /// <Author>YuSir</Author> /// </summary> public partial class ChangeKeys : Form { #region 构造 /// <summary> /// 构造函数 /// </summary> public ChangeKeys() { //绘制界面上控件等 InitializeComponent(); //设置焦点为输入按键文本框 TxtOldKey.Focus(); } #endregion #region 变量 /// <summary> /// 声明委托 /// </summary> /// <param name="nCode"></param> /// <param name="wParam"></param> /// <param name="lParam"></param> /// <returns></returns> public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam); /// <summary> /// 声明键盘钩子事件类型 /// </summary> HookProc KeyboardHookProcedure; /// <summary> /// 键盘钩子句柄 /// </summary> static int hKeyboardHook = 0; //装置钩子的函数 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); //卸下钩子的函数 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook); //获取某个进程的句柄函数 [DllImport("kernel32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static extern IntPtr GetModuleHandle(string lpModuleName); /// <summary> /// 普通按键消息 /// </summary> private const int WM_KEYDOWN = 0x100; /// <summary> /// 系统按键消息 /// </summary> private const int WM_SYSKEYDOWN = 0x104; //鼠标常量 public const int WH_KEYBOARD_LL = 13; //声明键盘钩子的封送结构类型 [StructLayout(LayoutKind.Sequential)] public class KeyboardHookStruct { public int vkCode; //表示一个在1到254间的虚似键盘码 public int scanCode; //表示硬件扫描码 public int flags; public int time; public int dwExtraInfo; } #endregion #region 事件 /// <summary> /// 释放按键时把按键显示在文本框中 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void TxtOldKey_KeyUp(object sender, KeyEventArgs e) { TxtOldKey.Text = e.KeyCode.ToString(); } /// <summary> /// 释放按键时把按键显示在文本框中 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void TxtNewKey_KeyUp(object sender, KeyEventArgs e) { TxtNewKey.Text = e.KeyCode.ToString(); } /// <summary> /// 启动键盘钩子 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void BtnStart_Click(object sender, EventArgs e) { //启动键盘钩子 if (hKeyboardHook == 0) { //实例化委托 KeyboardHookProcedure = new HookProc(KeyboardHookProc); Process curProcess = Process.GetCurrentProcess(); ProcessModule curModule = curProcess.MainModule; hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardHookProcedure, GetModuleHandle(curModule.ModuleName), 0); } } /// <summary> /// 截取全局按键，发送新按键，返回 /// </summary> /// <param name="nCode"></param> /// <param name="wParam"></param> /// <param name="lParam"></param> /// <returns></returns> private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam) { if (nCode >= 0 && wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN) { KeyboardHookStruct MyKeyboardHookStruct = (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct)); Keys keyData = (Keys)MyKeyboardHookStruct.vkCode; if (keyData.ToString() == TxtNewKey.Text) { SendKeys.Send("{" + TxtOldKey.Text + "}"); //return为了屏蔽原来的按键，如果去掉，则原来的按键和新的按键都会模拟按。 return 1; } } return 0; } /// <summary> /// 停止键盘钩子 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void BtnStop_Click(object sender, EventArgs e) { bool retKeyboard = true; if (hKeyboardHook != 0) { retKeyboard = UnhookWindowsHookEx(hKeyboardHook); hKeyboardHook = 0; } //如果卸下钩子失败 if (!(retKeyboard)) throw new Exception("卸下钩子失败！"); } #endregion }}