Button lines report a change in state of tracker buttons 1 through 8. The <button # > reports which button has changed state. The value will be 1 if the button has been pressed, 0 if it has been released. Tracker buttons may be created to monitor any digital input port bit, and may be created by link commands or in the tracker configuration file BUTTONS.INI.

• Buttons:
  BUTTON <time > <button # > <state >