The Tab order in any application decides which element of the application have to set focus. In a Tkinter application, it constantly looks for the next widget that needs to be focused on. To set the tab order in the application, we can define a function and pick all the widgets and use lift() method. It will allow the function to set the focus on a particular widget programmatically.Example#Import the required libraries from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set the geometry of Tkinter Frame win.geometry("700x350") #Add entry widgets e1 = ... Read More

Tkinter window contains many inbuilt functionalities and features which can be taken and used for various application development. There might be cases when we have to run a particular part of the application with the help of some key or function. It can be achieved by binding a particular key with the callback that contains the functions for the operation. The key can be anything from Mouse Buttons to Keyboard Keys. We can even bind the callback with Keyboard Key Combinations.Example#Import the Tkinter Library from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set ... Read More

Tkinter Entry widget is an Input widget that supports and accepts single-line user input. It accepts all types of characters in UTF-8 module. In order to get the input from the Entry widget, we have to define a variable (based on Data Types it accepts) that accepts only string characters. Then, by using get() method, we can print the given input from the Entry widget.Example# Import the Tkinter Library from tkinter import * # Create an instance of Tkinter Frame win = Tk() # Set the geometry of window win.geometry("700x250") # Define a String Variable var = ... Read More

In order to work with images, Python Library provides Pillow or PIL package that enables applications to import images and perform various operations on them.Let us suppose that we want to resize an image dynamically to its window. In such case, we have to follow these steps −Open the Image in the Tkinter Application.Create a Canvas Widget and use create_image(**options) to place the loaded image in the canvas.Define a function to resize the loaded image.Bind the function with the parent window configuration.Example# Import the required libraries from tkinter import * from PIL import ImageTk, Image # Create an instance ... Read More

Let us suppose we have created an oval on a Tkinter canvas. The task is to change the thickness of the oval's outline. To change the thickness of the outline, provide a border or outline to a rectangle, define the width property in the constructor and assign it an integer value. You can also define the outline property to set a color to the outline of the oval.Example#Import the required libraries from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set the geometry win.geometry("700x350") # Define a Canvas Widget canvas = Canvas(win, width=500, height=350) canvas.pack() ... Read More

Let us suppose we have created a rectangle on a Tkinter canvas. The task is to provide the rectangle with an outline that can have a color in it. To provide a border or outline to a rectangle, first define the outline property in the constructor and add a new color value to it.ExampleIn this example, we will create a rectangle on a Tkinter canvas and then apply a color to its outline.#Import the required libraries from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set the geometry win.geometry("700x350") # Define a Canvas ... Read More

Canvas widget is one of the versatile widgets in the Tkinter library. You can use canvas to draw different shapes, arcs, and objects to animate within the canvas. To create a button on a Tkinter Canvas, simply pass the parent as the canvas in place of a parent in the Button constructor.ExampleIn this example, we will see how to create a Button inside a canvas widget.#Import the required libraries from tkinter import * from tkinter import ttk #Create an instance of Tkinter Frame win = Tk() #Set the geometry of Tkinter Frame win.geometry("700x350") #Define a function for ... Read More

A Listbox widget contains a list of items such as a list of numbers or characters. Let us suppose that you want to create a long list of items using the Listbox widget. Then, there should be a proper way to view all the items in the list. Adding Scrollbar to the list box widget will be helpful in this case.To add a new scrollbar, you have to use Listbox(parent, bg, fg, width, height, bd, **options) constructor. Once the Listbox is created, you can add a scrollbar to it by creating an object of Scrollbar(**options).Example#Import the required libraries from tkinter import ... Read More

Scrollbars are used to wrap an amount of text or characters in a frame or window. It provides a text widget to contain as many characters as the user wants.The Scrollbar can be of two types: Horizontal Scrollbar and Vertical Scrollbar.The length of a scrollbar changes whenever the number of characters in the Text widget increases. We can configure the style of Scrollbar by using ttk.Scrollbar. Ttk provides many inbuilt features and attributes that can be used to configure the Scrollbar.ExampleIn this example, we will add a vertical scrollbar in a Text widget. We will use a ttk style theme to customize ... Read More

To make a particular Tkinter application fully functional and operational, we can use as many widgets as we want. If we want to check if a widget exists or not, then we can use the winfo_exists() method. The method can be invoked with the particular widget we want to check. It returns a Boolean value where True(1) specifies that the widget exists in the application, and False(0) specifies that the widget doesn't exist in the application.Example# Import the required libraries from tkinter import * from tkinter import ttk # Create an instance of Tkinter Frame win = Tk() ... Read More