Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Tkinter Articles
Page 43 of 46
What is the difference between a variable and StringVar() of Tkinter?
A variable in Tkinter is used to store the values of any data. For a Tkinter application, we can store the values in two ways −by defining the value programmatically, orby storing the value through user Input.A normal variable can be used to set the value for any application whenever it is required. However, we can take the user input by creating an instance of the StringVar() object. When we specify a Tkinter variable such as textvariable, for a widget (textvariable = myvar), the widget automatically gets updated whenever the value of the variable changes. However, there might be times ...
Read MoreRock Paper and Scissor Game Using Tkinter
Tkinter is one of the Python-based libraries used to create and develop Desktop User interfaces and applications. Using the Tkinter library and its packages, we will create a Rock Paper Scissor Game Application. The game can be played between two people using hand gestures. The condition for winning the game is, If player A gets Paper and Player B gets scissors, then Scissor wins.If player A gets Paper and Player B gets Rock, then Paper wins.Similarly, If player A gets Rock and Player B gets scissors, then Rock wins.Following these game conditions, we will first create the GUI for the game user interface. The ...
Read MorePlacing plot on Tkinter main window in Python
Oftentimes, we need to deal with plots in our Tkinter GUI-based application. To support the plots for the available data points, Python provides a Matplotlib package that can be imported into the application easily. In order to add a plot for the given data points, we have to install several other packages such as NumPy along with Matplotlib. NumPy is a Python library that helps to deal with scientific calculation in the Data.ExampleIn this example, we will create data points for the car prices starting from (100000) with the units in the range of 1000 to 5000.#Import the required Libraries ...
Read MoreHow to draw images in the Tkinter window?
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 MoreHow to stop Tkinter after function?
Tkinter functions can be created with the help of threading concept where we define, when a function should run or stop. A Tkinter function can be scheduled using the after(time, callback) function.Let us suppose that we have created a callback function that forces the main window to be closed after some time. There might be times when we need to stop the scheduling of the function. In order to cancel or stop a particular schedule of a callback function, we can use after_cancel(widget) function.ExampleIn the given example, the script will close the main window after 3 seconds but after initializing ...
Read MoreHow to remove focus from a Tkinter widget?
To active the focus on a particular widget during the execution of a Tkinter program, we can use focus_set() method. Adding the focus creates a gray line around the widget and makes it visible to the user.There might be some cases when we need to remove the focus from the desired widget.This can be done either by removing the focus_set() property or switching the focus from one widget to another.Example#Import the required Libraries from tkinter import * from tkinter import ttk from tkinter import messagebox #Create an instance of Tkinter frame win = Tk() #Set the geometry of Tkinter ...
Read MoreHow do I find out the size of a canvas item in Tkinter?
To find the minimum height and width of canvas items, we can use the bounding box property of Canvas. Basically, a bounding box property enables the canvas item to return the position inside the canvas. Initially, every item in the bbox(item) method defines the minimum and maximum width and height of the item.Example#Import required libraries from tkinter import * #Create an instance of tkinter frame win= Tk() #Define the geometry of the window win.geometry("750x250") #Initialize a Canvas canvas= Canvas(win, width= 600, height= 200) #Add a text inside the Canvas text= canvas.create_text(300, 20, text= "This is a New Line Text", font=16, ...
Read MoreHow can I set the default value of my Tkinter Scale widget slider to 100?
Tkinter Scale Widgets are used to provide the visual representation of data items where we can modify or change the value of data items. In order to change the state of data or select multiple data in the field, we can use the Scale widget.The Scale Widget can be created by initializing a Scale(parent, from_, to, orient, options) constructor.However, sometimes we need to set the default value of the Tkinter Scale widget, which can be set by using the set(numeric_value) method.ExampleIn this example, we will create a scale widget that sets a default value for the slider.#Import the required Libraries ...
Read MoreHow can I put two buttons next to each other in Tkinter?
Tkinter generally provides three general ways to define the geometry of the widgets. They are − Place, Pack, and Grid Management. If we use the Pack geometry manager, then place the two buttons in the frame using side property. It places the buttons horizontally stacked in the window in (Left, Right, Top and Bottom) direction. The side property maintains the same width and internal padding between all the adjacent widget in the application.Example#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 MoreHow can I insert a string in an Entry widget that is in the "readonly" state using Tkinter?
Tkinter Entry widget is used to insert single-line text input. We can use the Entry widget to create forms where single-line input is the prime requirement.Sometimes, we need to insert a predefined text inside the Entry Widget. In such cases, we can use insert(INSERT, ) method. These are generally called as Placeholders for the Entry widget.Let us suppose that we want to change the state of our text as read-only. Here, we can use state= ‘readonly’ property while configuring the Entry widget.Example#Import the required Libraries from tkinter import * from tkinter import ttk #Create an instance of tkinter frame win = ...
Read More