Read Write Memory tutorial

while (TRUE)
    {
        if (GetAsyncKeyState(VK_NUMPAD1)) // HEALTH
        {
            int newHealth = 1666;
            WriteProcessMemory(hProcess, (BYTE*)healthAddr, &newHealth, sizeof(newHealth), nullptr);
            ReadProcessMemory(hProcess, (BYTE*)healthAddr, &HealthValue, sizeof(HealthValue), nullptr);
            std::cout << "New Health = " << std::dec << HealthValue << std::endl;
            Sleep(1000);
        }
        //---------------------------------------
        if (GetAsyncKeyState(VK_NUMPAD2)) // AMMO
        {
            int newAmmo = 1666;
            WriteProcessMemory(hProcess, (BYTE*)AmmoAddr, &newAmmo, sizeof(newAmmo), nullptr);
            ReadProcessMemory(hProcess, (BYTE*)AmmoAddr, &AmmoValue, sizeof(AmmoValue), nullptr);
            std::cout << "New Ammo = " << std::dec << AmmoValue << std::endl;
            Sleep(1000);
        }
        //---------------------------------------
        if (GetAsyncKeyState(VK_NUMPAD3)) // PISTOL AMMO
        {
            int newPistolAmmo = 1666;
            WriteProcessMemory(hProcess, (BYTE*)PistolAmmoAddr, &newPistolAmmo, sizeof(newPistolAmmo), nullptr);
            ReadProcessMemory(hProcess, (BYTE*)PistolAmmoAddr, &PistolAmmoValue, sizeof(PistolAmmoValue), nullptr);
            std::cout << "New Pistol Ammo = " << std::dec << PistolAmmoValue << std::endl;
            Sleep(1000);
        }