Memory Reading/Writing (Game Hacking) - C++

#include<iostream>
#include<Windows.h>

using namespace std;

int main()
{
    int newValue = 2000;
    int readTest = 0;

    HWND hwnd = FindWindowA(NULL, "Window Name");
    if (hwnd == NULL)
    {
        cout << "Cannot find window." << endl;
        Sleep(3000);
        exit(-1);
    }
    else
    {
        DWORD procID;
        GetWindowThreadProcessId(hwnd, &procID);
        HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, procID);

        if (procID == NULL)
        {
            cout << "Cannot obtain process." << endl;
            Sleep(3000);
            exit(-1);
        }
        else
        {
            // Write Memory in infinite loop (On 'press space' Write Memory)
            for (;;)
            {
                if (GetAsyncKeyState(VK_SPACE))
                {
                    WriteProcessMemory(handle, (LPVOID)0x00ABEA6C, &newValue, sizeof(newValue), 0);
                    newValue++;
                }
                Sleep(1);
            }

            // Read Memory:
            ReadProcessMemory(handle, (PBYTE*)0x00ABEA6C, &readTest, sizeof(readTest), 0);
            cout << readTest << endl;
            Sleep(10000);
        }
    }
    return 0;
}