Ksp reference Manual

2.5. on listener
on listener
Listener callback, executed at definable time intervals or whenever a transport command is received
Remarks
The listener callback is executed at time intervals defined with the 
set_listener()
command. It
can also react to the host's transport start and stop command. This makes it the ideal callback for
anything tempo synced like sequencers, arpeggiators, midi file player etc.
• In some situations (like tempo changes within the host) ticks can be left out.
Examples
on init
declare ui_knob $Test (0,99,1)
declare $direction
declare $tick_counter
set_listener($NI_SIGNAL_TIMER_MS,10000)
end on
on listener
if ($NI_SIGNAL_TYPE = $NI_SIGNAL_TIMER_MS)
if ($direction = 0)
inc($tick_counter)
else
dec($tick_counter)
end if
$Test := $tick_counter
if ($tick_counter = 99)
$direction := 1
end if
if ($tick_counter = 0)
$direction := 0
end if
end if
end on
Not useful as such, but nice to look at
See Also
set_listener()
change_listener_par()
Callbacks
6
KSP Reference Manual

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$NI_SIGNAL_TYPE
$NI_SONG_POSITION
2.6. on note
on note
Note callback, executed whenever a note on message is received
Examples
on note
message("Note Nr: " & $EVENT_NOTE & " - Velocity: " & $EVENT_VELOCITY)
end on
Query note data
See Also
on release
ignore_event()
set_event_par()
get_event_par()
$EVENT_NOTE
$EVENT_VELOCITY
$EVENT_ID