Event Handling In Tkinter Python means to bind the keyboard or mouse buttons to the Tkinter and use them to call some functions.
We use bind() function to bind keys and functions to each other.
Here, functions can be in-built or made by the programmer.
Let’s see the code to call the in-built function and self made function using the gui.
Code
# importing tkinter
from tkinter import *
# initializing root
root = Tk()
# width and height variables
can_width = 300
can_height = 200
# setting geometry of gui
root.geometry(f"{can_width}x{can_height}")
# setting title of gui
root.title("Event handling")
# creating a label
Label(root, text="Click anywhere").pack()
# initializing variable
i = 0
# defining a function
def me(event):
global i
Label(root, text=f"You clicked me {i} time").pack()
Label(root, text="Double click to exit screen").pack()
i=i+1
# binding mouse left button to root and calling me function
root.bind("<Button-1>", me)
# binding double click mouse left button to root and calling
# in-built quit function
root.bind("<Double-1>", quit)
# calling mainloop
root.mainloop()
Output
Now, here is the code to call the previous functions using the button.
Code
# importing tkinter
from tkinter import *
# initializing root
root = Tk()
# width and height variables
can_width = 300
can_height = 200
# setting geometry of gui
root.geometry(f"{can_width}x{can_height}")
# setting title of gui
root.title("Event handling")
# creating a button
win = Button(root, text="Click me")
# packing the button to gui to show it on screen
win.pack()
# initializing variable
i = 0
# defining a function
def me(event):
global i
Label(root, text=f"You clicked me {i} time").pack()
Label(root, text="Double click to exit screen").pack()
i=i+1
# binding mouse left button to win and calling me function
win.bind("<Button-1>", me)
# binding double click mouse left button to win and calling
# in-built quit function
win.bind("<Double-1>", quit)
# calling mainloop
root.mainloop()
Output
Also Read:
- Simple Code to compare Speed of Python, Java, and C++?
Introduction There’s often a lot of debate about the speed of different programming languages, with many assuming that C++ is always the fastest and Python… - Falling Stars Animation on Python.Hub October 2024
Hello Python enthusiasts! Check out the cool animation below, featured on our Instagram page, python.hub. You can view the latest reel, posted on October 8,… - Most Underrated Database Trick | Life-Saving SQL Command
Hello folks! Today we are again back with a super important article on the Most underrated SQL & Database Trick to save your entire application…. - Python List MethodsHello friends, in this article, we will explore various Python List methods, indispensable tools in a programmer’s toolkit for manipulating lists efficiently. List methods in…
- Top 5 Free HTML Resume Templates in 2024 | With Source Code
Introduction Hello friends! Welcome to another article where I will share more useful resources for free. Today, I will share the Best 5 HTML resume…
