[C++ TUT] PC Memory Editor (Trainer , RTM Tool)

Hello everyone!
Today I will be teaching you on how to make a game hack in C++!!
We will be making one for Steam MW2...

First add some includes...

#include <iostream>
#include <windows.h>

Now just add the usual namespace :P

using namespace std;

Now add your main function

int main()
{

}

Alright now let´s make a cout...

cout << "Make sure Modern Warfare 2 is Opened before opening the tool! << endl;
system("Pause");

Now let´s create a FindWindow function (WINDOW NAME NOT PROCESS NAME!!)!

LPCWSTR Fuck = L"Modern Warfare 2";
HWND hwnd = FindWindow(0, Fuck);

Now we need to create some basic if code to determinate if the Window is opened or not...

if (hwnd == 0)
{
cout << "The game has not been found... please open it before opening the tool next time..." << endl;
system("Pause");
}
else
{
             cout << "Modern Warfare 2 has been found... Enjoy the tool!" << endl;
        }

Great!


Now you need to add a DWORD , a Function that gets the process ID and writes it to the DWORD and a
Handle function...

DWORD process_ID;
GetWindowThreadProcessId(hwnd, &process_ID);
HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, process_ID);

Now populate it with options!

I will just be doing XP here...

cout << "Type 1 for XP" << endl;
cout << "Type : ";
int Option;
cin >> Option;

Now let´s make the options if code and the actual write memory code :)

if (Option > 1)
{
cout << "There is no option higher than 1..." << endl;
system("Pause");
}
if (Option == 1)
{
...
                }

Ok :)
Now let´s make a cout that ask us how much XP do we want to write..

cout << "What do you want to set your XP as?" << endl;
cout << "Type : ";
int XP;
cin >> XP;

Alright now you need to convert the XP to a byte....

by doing this :
DWORD newdatasize = sizeof(XP);

Now finally we are going to write process memory!!

if (WriteProcessMemory(hProcess, (LPVOID)0x01B2C89C, &XP, newdatasize, NULL))
{
cout << "The XP has been written sucessfully!!" << endl;
system("Pause");
}
else
{
cout << "There was an error writing the XP..." << endl;
system("Pause");
}

Basicly we are doing if code so we dont get a nasty error when something goes wrong..
Also il explain the WriteProcessMemory syntax... :
WriteProcessMemory(ToThisProcessID, (LPVOID)ToThisOffset, &XP , WithTheseBytes, NULL))...

Now just add the "looping" main(); and a return 0; code :) ...

You have just made a memory editor!!!

Final source : http://pastebin.com/EU6yrXpe


Video version : http://www.youtube.com/watch?v=Rq89e07N74g