PYGLET – On Mouse Scroll Event
In this article we will see how we can trigger on mouse scroll event 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).This event get called when the mouse wheel was scrolled. Note that most mice have only a vertical scroll wheel, so scroll_x is usually 0. An exception to this is the Apple Mighty Mouse, which has a mouse ball in place of the wheel which allows both scroll_x and scroll_y movement.
We can create a window with the help of command given below :
pyglet.window.Window(width, height, title)
Below is the syntax of the on mouse scroll event, this method get called when this event is triggered :
@window.event
def on_mouse_scroll(x, y, scroll_x, scroll_y):
print("Mouse scrolled")
Below is the implementation :
Python3
import pyglet
import pyglet.window.key
width = 500
height = 500
title = "Geeksforgeeks"
window = pyglet.window.Window(width, height, title)
text = "GeeksforGeeks"
label = pyglet.text.Label(text,
font_name = 'Times New Roman' ,
font_size = 36 ,
x = window.width / / 2 , y = window.height / / 2 ,
anchor_x = 'center' , anchor_y = 'center' )
new_label = pyglet.text.Label(text,
font_name = 'Times New Roman' ,
font_size = 10 ,
x = 25 , y = 25 )
@window .event
def on_draw():
window.clear()
label.draw()
@window .event
def on_key_press(symbol, modifier):
if symbol = = pyglet.window.key.C:
print ( "Key C is pressed" )
@window .event
def on_mouse_scroll(x, y, scroll_x, scroll_y):
print ( "Mouse scrolled" )
img = image = pyglet.resource.image( "logo.png" )
window.set_icon(img)
pyglet.app.run()
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Output :
Mouse scrolled
Mouse scrolled
Mouse scrolled
Mouse scrolled
Mouse scrolled
Mouse scrolled
Mouse scrolled
Mouse scrolled
Mouse scrolled
Last Updated :
30 Jul, 2021
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