Hook.cpp

/*
Code: Add new monsters to MuOnline client
Credits: DoS.Ninja
Web: ninja-researcher.blogspot.com
*/
#include "stdafx.h"
#include "Hook.h"

void Access(DWORD dwOffset, int t_size)
{
    DWORD OldProtect;
    VirtualProtect((LPVOID)dwOffset, t_size, PAGE_EXECUTE_READWRITE, &OldProtect);
}

void HookAddress(DWORD dwAddrOffst, DWORD dwNewOffst, BYTE new_Cmd)
{//Хук процедуры
    Access(dwAddrOffst, 5);

    if(new_Cmd)
        memset((void*)dwAddrOffst, new_Cmd, 1);

    *(DWORD*)(dwAddrOffst+1)=dwNewOffst-(dwAddrOffst+5);
}