将非静态方法注册为回调函数是否合乎逻辑?

KeyLogger 和阶级 cHookProc

首先我创造 在里面 键盘记录器

然后我得到了他的地址 LRESULT CALLBACK cHookProc::HookProc 通过 unsigned int cHookProc::getCallBackAddr()

它是合乎逻辑的,总是很好吗?

KeyLogger.h

#pragma once
#include <time.h>
#include <windows.h>

class cHookProc{
public:
    LRESULT CALLBACK HookProc(int code, WPARAM wp, LPARAM lp);
    unsigned int getCallBackAddr();
private:
};

class KeyLogger{
public:
    KeyLogger();
    ~KeyLogger();
private:
    cHookProc *cHkProc;
};

这就是 KeyLogger.cpp

#include "KeyLogger.h"

KeyLogger::KeyLogger(){
    cHkProc = new cHookProc;
    int i = cHkProc->getCallBackAddr();
    HOOKPROC hprc = (HOOKPROC)i;
    HHOOK keyHook = SetWindowsHookEx(WH_KEYBOARD_LL, hprc, NULL, NULL);
}
KeyLogger::~KeyLogger(){
    delete cHkProc;
}

LRESULT CALLBACK cHookProc::HookProc(int code, WPARAM wp, LPARAM lp){
    if (code == 0){
    .
    .
    .
    }
    return CallNextHookEx(NULL, code, wp, lp);
}
unsigned int cHookProc::getCallBackAddr(){
    LRESULT(__stdcall cHookProc::*ptrtofn)(int, WPARAM, LPARAM) = &cHookProc::HookProc;
    unsigned int *i;
    i = (unsigned int*)&ptrtofn;
    return *i;
}