Gameport Device, 87
  additional information, 100
  closing, 90
  commands and functions, 88
  connectors, 87
  controllers, 89
  determining controller type, 94
  determining triggering conditions, 93
  IORequest structures, 89
  joystick controller, 90
  joystick controller, 93
  mouse controller, 90
  mouse controller, 92
  opening, 89
  reading, 91
  setting controller type, 94
  setting triggering conditions, 92
  triggering events, 92
  units, 104
  use protocol, 94