UPPER() function in SQL Server

How to close a window in Tkinter?

Last Updated : 09 Dec, 2020

Python offers multiple options for developing GUI (Graphical User Interface). Out of all the GUI methods, tkinter is the most commonly used method. It is a standard Python interface to the Tk GUI toolkit shipped with Python. Python with tkinter is the fastest and easiest way to create GUI applications. Creating a GUI using tkinter is an easy task.

To close a tkinter window, we can use the destroy() method. The destroy() is a universal widget method i.e we can use this method with any of the available widgets as well as with the main tkinter window.

Example:

In the below example, we are going to implement the destroy() method using a button.

Python

# import required module  
from tkinter import *
  
# create object 
root = Tk() 
  
# create button to implement destroy() 
Button(root, text="Quit", command=root.destroy).pack() 
  
root.mainloop() 

Output:

In the above example, on clicking the button the destroy() method is called and the tkinter window is closed.

UPPER() function in SQL Server

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