# Click on the image to give it focus, # and then press any key. value = 0 def draw(): fill(value) rect(25, 25, 50, 50) def keyReleased(): global value if value == 0: value = 255 else: value = 0
The keyReleased() function is called once every time a key is released. The key that was released will be stored in the key variable. See key and keyReleased for more information.
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.