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PYGLET – On Mouse Drag Event

  • Last Updated : 20 Aug, 2021

In this article we will see how we can trigger on mouse drag 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). The mouse was moved with one or more mouse buttons pressed. This event will continue to be fired even if the mouse leaves the window, so long as the drag buttons are continuously held down.
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 drag event, this method get called when this event is triggered  

@window.event       
def on_mouse_drag(x, y, dx, dy, buttons, modifiers):
    print("Mouse is dragged")

Below is the implementation  

Python3




# importing pyglet module
import pyglet
import pyglet.window.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 = "GeeksforGeeks"
 
# creating a label with font = times roman
# font size = 36
# aligning it to the centre
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)
 
# on draw event
@window.event
def on_draw():   
 
     
    # clearing the window
    window.clear()
     
    # drawing the label on the window
    label.draw()
 
     
# key press event   
@window.event
def on_key_press(symbol, modifier):
 
    # key "C" get press
    if symbol == pyglet.window.key.C:
         
        print("Key C is pressed")
 
 
# on mouse drag event
@window.event
def on_mouse_drag(x, y, dx, dy, buttons, modifiers):
     
    # printing some message
    print("Mouse is dragged")
     
 
  
 
# image for icon
img = image = pyglet.resource.image("logo.png")
 
# setting image as icon
window.set_icon(img)
 
                
# start running the application
pyglet.app.run()

Output : 

Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged
Mouse is dragged


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