Populous Memory Editor

//I'm using a custom header GetProcessID.h to get the pId of Populous TB, you can
//use your own process, i'm not going to release that header file since its not mine.

#include "stdafx.h"
#include <windows.h>
#include "GetProcessID.h"
#include <iostream>
#include <string>
#include <stdio.h>
#include <tchar.h>
#include <thread>
using namespace std;

DWORD GetPID (LPCTSTR processName);
bool WriteMem (LPCTSTR processName, LPVOID location, byte value);
int ReadMem (LPCTSTR processName, LPVOID location);
void Memloop();
int tribecol = 0;

int main(int argc, char* argv[])
{

    SetConsoleTitle("Populous Tribe Changer");

    cout << "Welcome to Populous Tribe Changer!\n\n";

    int popOpen = 0;

    while (popOpen == 0) {
        if (GetPID("matchmaker") > 0) {
            cerr << "\nPopulous Reincarnated Matchmaker must be closed!" << endl;
        } else {
            if (GetPID("poptb") > 0) {
                cout << "blue = 0, red = 1, yellow = 2, green = 3" << endl;
                cout << "Please enter tribe color #: ";
                cin >> tribecol;
                popOpen = 1;
            } else {
                cout << "Please open Populous (Software)!" << endl;
            }
        }
        Sleep(2000);
    }

    thread t1(Memloop);
    t1.detach();

    while (true) {
        cout << "Would you like to change colors? #: ";
        cin >> tribecol;
        cout << "Your new color has been set, you may need to restart the level to gain control. " << endl;
    }

    getchar();
    return 0;
}

void Memloop() {
    while (true) {
        if (GetPID("matchmaker") > 0) {
            cerr << "\nPopulous Reincarnated Matchmaker must be closed!" << endl;
        } else {
            if (GetPID("poptb") > 0) {
                WriteMem("poptb", (LPVOID)0x884C88, tribecol);
            }
        }
        Sleep(2000);
    }
}


bool WriteMem (LPCTSTR processName, LPVOID location, byte value) {
    HANDLE hProc = OpenProcess(PROCESS_ALL_ACCESS, false, GetPID(processName));
    if (!hProc) {
        cerr << "Cannot write memory, is populous open? running as admin?" << endl;
        return false;
    }else {
        int isSuccessful = WriteProcessMemory(hProc, location, &value, sizeof(&value), NULL);
        if (isSuccessful > 0) {
            return true;
        } else {
            return false;
        }
        CloseHandle(hProc);
    }
}

int ReadMem (LPCTSTR processName, LPVOID location) {
    int output;
    HANDLE hProc = OpenProcess(PROCESS_ALL_ACCESS, false, GetPID(processName));
    if (!hProc) {
        cerr << "Cannot read memory, is populous open? running as admin?" << endl;
        return 0;
    }else {
        int MemRd = ReadProcessMemory(hProc, location, &output, sizeof(&output), NULL);
        return output;
        CloseHandle(hProc);
    }
}

DWORD GetPID (LPCTSTR processName) {
    std::vector<DWORD> SetOfPID;
    GetProcessID(processName,SetOfPID);
    if (SetOfPID.empty()) {
        return 0;
    }
    return SetOfPID[0];
}