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The ON event statements are used to trap events. For further information, see
ON COM, ON KEY, ON PEN, ON PLAY, ON SIGNAL, ON STRIG, ON TIMER, or ON UEVENT:
                                                               Available in
Specifies                                         Enables      DOS or OS/2
a trap       Type of event                        the trap     protected mode
═══════════  ═════════════════════════════════    ═══════════  ══════════════
◄ON COM►     Events on a communications port      ◄COM ON►     DOS & OS/2
◄ON KEY►     A keystroke                          ◄KEY ON►     DOS & OS/2
◄ON PEN►     Lightpen events                      ◄PEN ON►     DOS only
◄ON PLAY►    Fewer than queluelimit% notes in     ◄PLAY ON►    DOS only
                                the background-music queue
◄ON SIGNAL►  An OS/2 signal event                 ◄SIGNAL ON►  OS/2 only
◄ON STRIG►   Events on a joystick trigger         ◄STRIG ON►   DOS only
◄ON TIMER►   Timer events                         ◄TIMER ON►   DOS & OS/2
◄ON UEVENT►  User-defined events                  ◄UEVENT ON►  DOS & OS/2
 
See Also    ◄ON ERROR►    ◄ON...GOSUB►    ◄ON...GOTO►