rsc3/doc/help/ugen/controls/key-state.help.scrbl

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2022-08-24 13:53:18 +00:00
#lang scribble/manual
@(require (for-label racket))
@title{(key-state rate keynum minval maxval lag)}
Report the status of a particular key. A key is either pressed,
or not pressed.
The keycode 38 is the A key on my keyboard. Under X the xev(1)
command is useful in determining your keyboard layout.
(audition
(out 0 (mul (sin-osc ar 800 0)
(key-state kr 38 0 0.1 0.5))))