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
Tkinter Articles
Page 29 of 46
How to see if a widget exists in Tkinter?
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 MoreDetermine which Button was pressed in Tkinter
Buttons are very useful in many applications where user interaction is required. Let us suppose that we want to know which button is pressed in a given application. In order to get the information about the Button, we can use the callback function in the Button configuration. In the Callback function, we will use the print(test) function to print the button that is clicked.Example#Import the required libraries from tkinter import * from tkinter import ttk #Create an instance of Tkinter Frame win = Tk() #Set the geometry win.geometry("700x250") # Define function to get the information about the ...
Read MoreCreating a transparent background in a Tkinter window\\n\\n
Tkinter window provides many inbuilt functions and properties to help an application work seamlessly. They configure the GUI of the application as well.If we want to create a transparent window in an application, then we should have to define the color in the attributes('-transparentcolor', 'color' ) method. By providing the color of the window and widget, it will make the window transparent.Example#Import the Tkinter Library from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set the geometry of window win.geometry("700x350") #Add a background color to the Main Window win.config(bg = '#add123') #Create ...
Read MoreRunning multiple commands when a button is pressed in Tkinter
The Button widget provides a way to communicate through all the existing functionalities of an application. We can perform a certain action with the help of a Button that encapsulates the function and the objects. However, there might be cases when we want to perform multiple operations with a single button. This can be achieved by defining the lambda functions which target multiple events or callback in the application.ExampleIn this example, we will add multiple events to a specific Button.#Import the Tkinter Library from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set the ...
Read MoreHow to delete all children's elements using Python's Tkinter?
Frames are very useful in a Tkinter application. If we define a Frame in an application, it means we have the privilege to add a group of widgets inside it. However, all these widgets are called Children of that particular Frame.Let us suppose that we want to remove all the children widgets defined in a frame. Then, first we have to get the focus on children using the winfo_children() method. Once we get the focus, we can delete all the existing children using destroy() method.Example#Import the Tkinter Library from tkinter import * #Create an instance of Tkinter Frame win ...
Read MoreHow to get the coordinates of an object in a Tkinter canvas?
Tkinter Canvas Widget provides GUI features to an application. It can be used to draw shapes, animate objects, and configure the existing items in a canvas. Whenever we create shapes, we have to provide the size and coordinates of the shapes in the Canvas item constructor. In order to return the coordinates of an item on the Canvas, we can use the coords(item) method. It returns a list with the coordinates of the shapes in the canvas widget.Examplefrom tkinter import * #Create an instance of tkinter frame win = Tk() #Set the geometry of Tkinter frame win.geometry("700x250") # Initialize a ...
Read MoreHow to change the color of a Tkinter rectangle on clicking?
The Canvas widget is one of the most versatile widgets in the Tkinter Library. It is used for creating shapes of different types and sizes, animating objects, visualizing graphics, and many more. To change the property of a particular item in Tkinter, we can use itemconfig(**options) method. It takes options such as background color, outline color, and other useful properties of the items defined in a canvas.ExampleIn this example, we will create a rectangle such that the color inside the rectangle would change after clicking a Button.# Import the required libraries from tkinter import * from tkinter import ttk ...
Read MoreHow to create transparent widgets using Tkinter?
A Tkinter widget in an application can be provided with Transparent background. The background property of any widget is controlled by the widget itself.However, to provide a transparent background to a particular widget, we have to use wm_attributes('transparentcolor', 'colorname') method. It works in the widget only after adding the same transparent color as the background color of the widget.Example#Import the required libraries from tkinter import * #Create an instance of Tkinter Frame win = Tk() #Set the geometry win.geometry("700x250") #Adding transparent background property win.wm_attributes('-transparentcolor', '#ab23ff') #Create a Label Label(win, text= "This is a New line Text", font= ...
Read MoreHow to get the input from a Checkbox in Python Tkinter?
A checkbox widget is an input widget that has two values, either True or False. A checkbox is useful in many applications where a particular value needs to be validated.Let us suppose that we want to get the Input value from a checkbox such that if it is selected, then print the selected value. To print the value of the selected checkbox, we can use the get() method. It returns the input value of a particular widget.Example# Import Tkinter library from tkinter import * # Create an instance of tkinter frame win = Tk() # Set the geometry of ...
Read MoreChanging the Default Font for all the widgets in Tkinter
Let us consider a case where we want to change the default font of a Tkinter application. To apply the font and setting it as the default font for a particular application, we have to use option_add(**options) method where we specify a property such as background color, font, etc. The changes made after defining the method will force all the widgets to inherit the same property.ExampleIn the given script, we have set a default font for the application such that it can be used for all the widgets defined in the application.#Import the required libraries from tkinter import * ...
Read More