c#实现魔兽(warIII)中显血和改键功能 (附源码)(Hook中start方法已改进)

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
转载于：http://www.javaeye.com/topic/601061