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#!/usr/bin/env python3

# Python Stream Deck Library

# Released under the MIT license

#

# dean [at] fourwalledcubicle [dot] com

# www.fourwalledcubicle.com

#

import StreamDeck.StreamDeck as StreamDeck

import threading

import random

def get_random_key_colour_image(deck):

key_image_format = deck.key_image_format()

width, height = (key_image_format['width'], key_image_format['height'])

depth = key_image_format['depth']

random_color = [int(random.random() * 0xFF) for _ in range(depth)]

return random_color * (width * height)

def key_change_callback(deck, key, state):

print("Deck {} Key {} = {}".format(deck.id(), key, state), flush=True)

if state:

deck.set_key_image(key, get_random_key_colour_image(deck))

if key == d.key_count() - 1:

deck.reset()

deck.close()

if __name__ == "__main__":

manager = StreamDeck.DeviceManager()

decks = manager.enumerate()

print("Found {} Stream Decks.".format(len(decks)), flush=True)

for d in decks:

d.open()

d.reset()

print("Press key {} to exit.".format(d.key_count() - 1), flush=True)

d.set_brightness(30)

for k in range(d.key_count()):

d.set_key_image(k, get_random_key_colour_image(d))

current_key_states = d.key_states()

print("Initial key states: {}".format(current_key_states))

d.set_key_callback(key_change_callback)

for t in threading.enumerate():

if t is threading.currentThread():

continue

t.join()