TkInter keypress, keyrelease events

TkinterPythonGUI-Programming

Tkinter Events are generally used to provide an interface that works as a bridge between the User and the application logic. We can use Events in any Tkinter application to make it more interactive and functional. Events like <Key Press> and <KeyRelease> are used to call a specific function only when a key is pressed or released.

Example

In this example, we will create a script that will show some message on the screen whenever we press a key. The message gets disappeared when we release the same key.

# Import the Required libraries
from tkinter import *

# Create an instance of tkinter frame or window
win= Tk()

# Set the size of the window
win.geometry("700x350")

# Define a function to display the message
def key_press(e):
   label.config(text="Welcome to TutorialsPoint")

def key_released(e):
   label.config(text="Press any Key...")
# Create a label widget to add some text
label= Label(win, text= "", font= ('Helvetica 17 bold'))
label.pack(pady= 50)

# Bind the Mouse button event
win.bind('<KeyPress>',key_press)
win.bind('<KeyRelease>',key_released )
win.mainloop()

Output

Running the above code will display a window with a label.

When you press a key from the keyboard, it will display some message on the screen. At the same time, the message will get updated whenever you lift off the key.

raja
Updated on 07-Jun-2021 11:18:36

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