[HELP] hotkey issue

void main()
{
    bool hax = false;

    while(true){
        if(GetAsyncKeyState(VK_NUMPAD1)<0){
            if(hax == true
	where u put PTC off
                hax = false;
            } else {
	where you put PTC on
                hax = true;
            }
        }
        Sleep(20);
    }
}