This reference is for Processing 2.0+. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.

Name | ### keyTyped()
Examples |
    // Run this program to learn how each of these functions
    // relate to the others.

    void draw() { } // Empty draw() needed to keep the program running

    void keyPressed() {
      println("pressed " + int(key) + " " + keyCode);
    }

    void keyTyped() {
      println("typed " + int(key) + " " + keyCode);
    }

    void keyReleased() {
      println("released " + int(key) + " " + keyCode);
    }
Description | The keyTyped() function is called once every time a key is pressed, but action keys such as Ctrl, Shift, and Alt are ignored. Because of how operating systems handle key repeats, holding down a key will cause multiple calls to keyTyped(), the rate is set by the operating system and how each computer is configured. Mouse and keyboard events only work when a program has draw(). Without draw(), the code is only run once and then stops listening for events.
Syntax |
    keyTyped()
    keyTyped(event)
Returns | void
Related | keyPressed key keyCode keyReleased()

Updated on May 19, 2014 05:29:59pm PDT