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PYGLET – User Key

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  • Last Updated : 29 Aug, 2021
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In this article we will see how we can get the user key in PYGLET module in python. Pyglet is easy to use but powerful library for developing visually rich GUI applications like games, multimedia etc. A window is a “heavyweight” object occupying operating system resources. Windows may appear as floating regions or can be set to fill an entire screen (fullscreen). Key state handler class is a simple handler that tracks the state of keys on the keyboard. If a key is pressed then this handler holds a True value for it. User key is the key symbol for a key not supported by pyglet. This can be used to map virtual keys or scancodes from unsupported keyboard layouts into a machine-specific symbol. The symbol will be meaningless on any other machine, or under a different keyboard layout.
We can create a window with the help of command given below 

# creating a window
window = pyglet.window.Window(width, height, title)


In order to create window we use user_key method with the pyglet.window.key
Syntax : key.user_key(scancode)
Argument : It takes integer as argument
Return : It returns integer 

Below is the implementation 


# importing pyglet module
import pyglet
import pyglet.window.key as key
# width of window
width = 500
# height of window
height = 500
# caption i.e title of the window
title = "Geeksforgeeks"
# creating a window
window = pyglet.window.Window(width, height, title)
# text 
text = "Welcome to GeeksforGeeks Have a nice day"
# batch object
batch =
# creating document
document = pyglet.text.document.FormattedDocument(text)
# setting style to the document
document.set_style(0, len(document.text), dict(
                         font_name ='Arial', font_size = 16
                         color =(255, 255, 255, 255)))
# creating a incremental text layout
layout = pyglet.text.layout.IncrementalTextLayout(
               document, 400, 350, batch = batch)
# making layout to display multiline
layout.multiline = True
# creating a caret
caret = pyglet.text.caret.Caret(layout, color =(255, 255, 255))
# caret to window push handlers
# setting caret style
caret.set_style(dict(font_name ="Arial"))
# on draw event
def on_draw():
    # clear the window
    # draw the batch
    # caret to window push handlers
# creating a key state handler
key_handler = pyglet.window.key.KeyStateHandler()
# key press event    
def on_key_press(symbol, modifier):
    # key "C" get press
    if symbol == key.C:
        # printing the message
        print("Key : C is pressed")
# image for icon
img = image = pyglet.resource.image("gfg.png")
# getting user key
value = key.user_key(121)
# creating text from the value
text = "User Key for 121 : " + str(value)
# setting this text to the document
document.text = text
# setting image as icon
# start running the application

Output : 


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