Accessing and editing multiple addresses in memory - c++

Question

I want to access and edit multiple addresses in memory.
In case it's vague, the question is: If I used memory scanner and the results were a list of addresses, how would I be able to access and edit them all?
I've already been told to try putting all the addresses in an array, how do I do this?
Here's the code so far:
//
#include "stdafx.h"
#include "iostream"
#include "Windows.h"
#include <cstdint>
#include <stdint.h>
using namespace std;
int main()
{
int newValue = 0;
int* p;
p = (int*)0x4F6DCFE3DC; // now p points to address 0x220202
HWND hwnd = FindWindowA(NULL, "Call of Duty®: Modern Warfare® 3 Multiplayer");// Finds Window
if (hwnd == NULL) {// Tests for success
cout << "The window is not open" << endl;
Sleep(3000);
exit(-1);
}
else {
cout << "It's open boss!";
}
else {// If Successful Begins the following
DWORD procID;
GetWindowThreadProcessId(hwnd, &procID);
HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, procID);//Gets handle on process
if (procID == NULL) {
cout << "Cannot obtain process." << endl;
Sleep(3000);
exit(-1);
}
else {//Begins writing to memory
while (newValue == 0) {
/*This Writes*/WriteProcessMemory(handle, (LPVOID)0x04F6DCFE3DC, &newValue, sizeof(newValue), 0);
cout << p;
Sleep(3000);
}
}
}
}

Answer 1

It's fairly easy. Just use a std::vector<std::pair<int*,int>> to contain all these addresses you want to modify along with the value they should achieve:
std::vector<std::pair<int*,int>> changeMap = {
{ (int*)0x4F6DCFE3DC , 0 }
// more address value pairs ...
};
Then you can process them in a loop:
for(auto it = std::begin(changeMap); it != std::end(changeMap); ++it)
{
WriteProcessMemory(handle, (LPVOID)it->first, &(it->second),
sizeof(it->second), 0);
}
Whatever you want to achieve with that1.
I've already been told to try putting all the addresses in an array, how do I do this?
If you want to set all the address contents to 0 you may use a simpler construct:
int newValue = 0;
std::vector<int*> changeAddrList = {
(int*)0x4F6DCFE3DC ,
// more addresses to change ...
};
// ...
for(auto addr : changeAddrList)
{
WriteProcessMemory(handle, (LPVOID)addr , &newValue ,
sizeof(newValue), 0);
}
1Fiddling around in another processes memory is error prone and might lead to all kinds of unexpected behavior!
Your code may fail miserably at a newer version of that program, where you're trying to apply your cheat codez.