Tkinter widgets are the building blocks of any Tkinter GUI application. It is one of the very useful components of the application that helps to structure the application functionality. Consider a case where we want to set the size (width and height) of any widget. Tkinter has built-in width and height properties defined in geometry manager. Each geometry manager has different ways to configure the widget’s property.For the pack geometry manager, we can specify the value of width in the constructor.However, there might be times when we want to add the advance padding (internal and external) in the widget which ... Read More

To process images with Tkinter and other Python packages, we generally use the Pillow Package (or PIL) in Python. It provides a way to load, process, manipulate, convert, and helps to resize the images. The package can be installed by using the command pip install Pillow. Once the package is installed, we can import it using the 'from PIL import Image, ImageTk' command.To resize an image using the PIL package, we have to follow these steps −Install Pillow Package or PIL in the local machine.Open the Image using Open(image_location) method.Resize the given image using resize((w, h), Image.ANTIALIAS) method where ANTIALIAS removes ... Read More

Pillow package (or PIL) helps a lot to process and load images in Python projects. It is a free open-source library available in Python that adds support to load, process, and manipulate the images of different formats.In order to open the Image in Tkinter canvas, we have to first import the library using from PIL import Image, ImageTk command. To display the image in our Tkinter application, we can use the Canvas widget by specifying the image file in the create_image(x, y, image) method.Example#Import the required Libraries from tkinter import * from PIL import Image, ImageTk #Create an instance of ... Read More

There are two types of Text editors that Tkinter supports -- the Entry widget and the Text widget. Tkinter text widgets are used to create the text editor where we can edit, add or delete the text whenever we need. We can create a text widget using the Text(parent) constructor. In order to insert a default text for the text widget, we can use the insert(INSERT, "text_to_insert") or insert("1.0", "text_to_insert") method after the text widget declaration.ExampleIn this example, we will insert the text at the beginning of the text box.#Import the required Libraries from tkinter import * #Create an instance ... Read More

Tkinter canvas is the most versatile widget in the Tkinter library. It is used to create images, shapes, arcs, animating objects, and many more other works. In order to work and process the images, Python supports Pillow Package or PIL. We can add images in the canvas as the items using the create_image(width, height, image_location, options) method. We can also specify where the image should open in the window by defining the Positional arguments such as anchor(options) property.Example#Import the required Libraries from tkinter import * from PIL import Image, ImageTk #Create an instance of tkinter frame win = Tk() ... Read More

A Tkinter frame widget can contain a group of widgets. We can change the state of widgets in the frame by enabling or disabling the state of its underlying frame. To disable all the widgets inside that particular frame, we have to select all the children widgets that are lying inside that frame using winfor_children() and change the state using state=(‘disabled’ or ‘enable’) attribute.ExampleIn this example, we will create a button and an entry widget. Initially, the state of entry widget is disabled. But when we click the button, it will enable all the widgets in the frame.#Import the required Libraries ... Read More

Tkinter Text widget accepts and supports multiline user input. We can specify other properties of the Text Widget such as the width, height, background, border-width, and other properties as well.Let us suppose that we want to erase all the content in the given Text widget; then, we can use the delete("1.0", END) function.ExampleIn this example, we will insert some random text using random module in Python and erase using the delete() method.#Import the required Libraries from tkinter import * from tkinter import ttk import random #Create an instance of Tkinter frame win = Tk() #Set the geometry of Tkinter Frame ... Read More

To process images with Tkinter and other Python packages, we generally refer to use Pillow Package or PIL in Python. It provides a way to load and process the images in the program wherever we need. Initially, we convert the image to an instance of PhotoImage object that allows images to be further used in many use cases. Further, the Canvas widget in Tkinter helps to draw the images in a Tkinter application, we can use the create_image(x, y, image_file) method to display the image in a particular application.Example#Import the required Libraries from tkinter import * from PIL import Image, ... Read More

The state property in Tkinter is used to change the state of any specific widget. We can make a widget either active or disabled whenever required. To disable the Checkbuttons widget, we have to set the state property as readonly or disabled. Changing the state will make all the checkbuttons inactive during the execution of the program.Example#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("750x250") #Add a Top widget Label(win, text= "Select an Option from the Menu", font=('Aerial', 15, 'bold')).pack(pady=15) ... Read More

To separate a particular portion from the image, we have to locate the area first. Then we have to copy that area from the main image to another matrix. This is how the ROI in OpenCV works.In this example, two matrices have been declared at the beginning. After that, an image named 'image_name.jpg' has been loaded into the 'image1' matrix. The next line 'image2=image1 (Rect(100, 100, 120, 120));' requires special attention. This line is cropping out the defined region of the image and storing it in the 'image2' matrix.The figure shows what we have done here with the 'Rect(100, 100, ... Read More