上一个内容：41.HOOK引擎设计原理

以 40.设计HOOK引擎的好处 它的代码为基础进行修改

主要做的是读写寄存器

效果图

添加一个类

htdHook.h文件中的实现

#pragma once
class htdHook
{
public:htdHook();
};

htdHook.cpp文件中的实现：

#include "pch.h"
#include "htdHook.h"unsigned GetJMPCode(unsigned distance, unsigned eip) {return distance - eip - 0x5;
}void _stdcall DisHook(unsigned esp) {CString wTxt;wTxt.Format(L"%X", esp);AfxMessageBox(wTxt);
}// 全局变量区可能无法执行，需要设置它内存的属性为可执行
char data_code[]{0x60,// pushad0x9C,// pushfd0x54,// push esp0xE8,0xCC,0xCC,0xCC,0xCC, // call DisHook0x9D,// popfd0x61,//popad0xC3//retn
};htdHook::htdHook()
{DWORD dOld;VirtualProtect(data_code, sizeof(data_code), PAGE_EXECUTE_READWRITE, &dOld);unsigned* Adr = (unsigned*)(data_code + 0x4);unsigned target = (unsigned)DisHook;Adr[0] = GetJMPCode(target, (unsigned)(data_code + 0x3));CString wTxt;wTxt.Format(L"%X", data_code);AfxMessageBox(wTxt);
}

在CWndMain.h文件中通过构造方法来把读写寄存器的代码写入到游戏中