c#实现魔兽(warIII)中显血和改键功能 (附源码)（不影响聊天打字）

 在论坛中看到有人提到 这个功能，感觉应该能实现，周末就抽时间写出来了，在这里分享下：

思路：Hook+SendMessage，

 

首先，因为我们要改的键war3不是自己写的程序，所以只能用Hook来监控键盘的按键：

键盘Hook：

using System;using System.Runtime.InteropServices;using System.Windows.Forms;namespace quickey{ public class KeyboardHook { private const int WM_KEYDOWN = 0x100;//按下消息 private const int WM_KEYUP = 0x101;//松开消息 private const int WM_SYSKEYDOWN = 0x104; private const int WM_SYSKEYUP = 0x105; //全局事件 public event KeyEventHandler OnKeyDownEvent; public event KeyEventHandler OnKeyUpEvent; public event KeyPressEventHandler OnKeyPressEvent; static int hKeyboardHook = 0; //鼠标常量 public const int WH_KEYBOARD_LL = 13; public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam); //声明键盘钩子事件类型 HookProc KeyboardHookProcedure; /// <summary> /// 声明键盘钩子的封送结构类型 /// </summary> [StructLayout(LayoutKind.Sequential)] public class KeyboardHookStruct { public int vkCode;//表示一个1到254间的虚拟键盘码 public int scanCode;//表示硬件扫描码 public int flags; public int time; public int dwExtraInfo; } //安装钩子 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); //下一个钩子 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern int CallNextHookEx(int idHook, int nCode, Int32 wParam, IntPtr lParam); //卸载钩子 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook); private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam) { if ((nCode >= 0) && (OnKeyDownEvent != null || OnKeyUpEvent != null || OnKeyPressEvent != null)) { KeyboardHookStruct MyKBHookStruct = (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct)); //引发OnKeyDownEvent if (OnKeyDownEvent != null && (wParam == WM_KEYDOWN || wParam == WM_SYSKEYDOWN)) { Keys keyData = (Keys)MyKBHookStruct.vkCode; KeyEventArgs e = new KeyEventArgs(keyData); OnKeyDownEvent(this, e); } } return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam); } public void Start() { if (hKeyboardHook == 0) { KeyboardHookProcedure = new HookProc(KeyboardHookProc); //hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardHookProcedure, Marshal.GetHINSTANCE(System.Reflection.Assembly.GetExecutingAssembly().GetModules()[0]), 0); using (System.Diagnostics.Process curProcess = System.Diagnostics.Process.GetCurrentProcess()) using (System.Diagnostics.ProcessModule curModule = curProcess.MainModule) hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardHookProcedure,GetModuleHandle(curModule.ModuleName), 0); if (hKeyboardHook == 0) { Stop(); throw new Exception("Set GlobalKeyboardHook failed!"); } } } public void Stop() { bool retKeyboard = true; if (hKeyboardHook != 0) { retKeyboard = UnhookWindowsHookEx(hKeyboardHook); hKeyboardHook = 0; } if (!retKeyboard) throw new Exception("Unload GlobalKeyboardHook failed!"); } //构造函数中安装钩子 public KeyboardHook() { Start(); } //析构函数中卸载钩子 ~KeyboardHook() { Stop(); } }}

 

创建全局Hook：

 

KeyboardHook hook = new KeyboardHook();private void Form1_Load(object sender, EventArgs e) { hook.OnKeyDownEvent += new KeyEventHandler(hook_OnKeyDownEvent); } void hook_OnKeyDownEvent(object sender, KeyEventArgs e){//在这里就可以截获到所有的键盘按键了MessageBox.show(e.keyValue.toString());}

打开war3，在里面按了几下键盘，弹出了看，有好几个对话框，说明可以监测到war3里面的按键，

我的思路是向窗口发送消息，必须找到获取窗口的句柄才行：

[DllImport("USER32.DLL")] public static extern IntPtr FindWindow(string lpClassName,string lpWindowName);bool isHookEnable = true;//全局变量，指示Hook是否作用private const int WM_KEYDOWN = 0x100;private const int WM_KEYUP = 0x101;void hook_OnKeyDownEvent(object sender, KeyEventArgs e){if (e.KeyCode == Keys.Scroll){isHookEnable = !isHookEnable;this.Text = isHookEnable ? "quickey-开启":"quickey-停用";notifyIcon1.Text = this.Text;}if (isHookEnable){IntPtr war3 = FindWindow(null, "Warcraft III");if (war3 != IntPtr.Zero){MessageBox.show("找到war3了");}}}  

 运行，按了下弹出“找到war3了”这样就获得了war3窗口的句柄了

，剩下就是向窗口发送按键的消息了：

先声明：[DllImport("User32.DLL")]public static extern int SendMessage(IntPtr hWnd,uint Msg, int wParam, int lParam);if (isHookEnable){IntPtr war3 = FindWindow(null, "Warcraft III");if (war3 != IntPtr.Zero){if (e.KeyCode == Keys.D) SendMessage(war3, WM_KEYDOWN, (int)Keys.C, 0);}}

打开war3到创建游戏界面，按了下D，嗯？创建游戏了，说明消息发送成功

这样就可以将截获的按键来发送指定消息来“更改”按键了

private const int KEY_QUOTLEFT = 219;//键盘上 [ 键的代码private const int KEY_QUOTRIGHT = 221;//键盘上 ] 键的代码if (isHookEnable){IntPtr war3 = FindWindow(null, "Warcraft III");if (war3 != IntPtr.Zero){SetForegroundWindow(war3);//将war3窗口置前，这一句我自己测试时可以不用，但去掉这一句后朋友那里说不行 SendMessage(war3, WM_KEYDOWN, KEY_QUOTLEFT,0);//按下[键就可以显示友军的血了 SendMessage(war3, WM_KEYDOWN, KEY_QUOTRIGHT, 0); SendMessage(war3, WM_KEYDOWN, int.Parse(hash[e.KeyValue.ToString()].ToString()), 0);//按下SendMessage(war3, WM_KEYUP, int.Parse(hash[e.KeyValue.ToString()].ToString()), 0);//松开}}

 

ok,大体 就是这个思路，具体的代码可以到下面下载，

over

 

界面如下：

 

程序源代码(写的比较乱，将就了)：quickey.rar：http://download.csdn.net/source/1755782

欢迎转载，请注明出处！