Respond to the state of a key.
| keycode |
The keycode value of the key to check. This corresponds to the keycode values passed into the keyDownActions of SCViews. See the example below. |
| minval |
The value to output when the key is not pressed. |
| maxval |
The value to output when the key is pressed. |
| lag |
A lag factor. |
s.boot;// execute the code below to find out a key's keycode// the char and keycode of any key you press will be printed in the post window(w = Window.new("I catch keystrokes");w.view.keyDownAction = { arg view, char, modifiers, unicode, keycode; [char, keycode].postln; };w.front;)// then execute this and then press the 'j' key(w.front; // something safe to type on{ SinOsc.ar(800, 0, KeyState.kr(38, 0, 0.1)) }.play;)