Fullscreen - Normal

 if not $full
    $showm = Win32API.new 'user32', 'keybd_event', %w(l l l l), ''
    $showm.call(18,0,0,0)
    $showm.call(13,0,0,0)
    $showm.call(13,0,2,0)
    $showm.call(18,0,2,0)
    $full = 1
  end