c#实现魔兽(warIII)中显血和改键功能

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 } }

 

 

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