Found 604 Articles for Tkinter

How to draw a dot on a canvas on a click event in Tkinter Python?

Dev Prakash Sharma
Updated on 05-Aug-2021 14:02:52

3K+ Views

Consider a case for creating a GUI application such that when we click on the window with a mouse button, it stores the coordinates and draws a dot. Tkinter provides events that allow the user to bind the keys or buttons with the functions.To draw a dot on click event, we can follow these general steps −Create a canvas widget and pack it to display in the window.Define a function draw_dot() that works as the event when the user does the click event.Create a global variable that counts the number of clicks in the canvas.If the count becomes two, then ... Read More

Drawing a line between two mouse clicks using tkinter

Dev Prakash Sharma
Updated on 11-Oct-2021 07:45:01

981 Views

Consider a case for creating a GUI application such that when we click on the window with a mouse button, it stores the coordinates and creates a line between two given points. Tkinter provides events that allow the user to bind the keys or buttons with the functions.To draw a line between two points, we can follow these general steps, Create a canvas widget and pack it to display in the window.Define a function draw_line() that works as the event when the user does the click event.Create a global variable that counts the number of clicks in the canvas.If the ... Read More

Using a Frame class in a Tk class in Python tkinter

Dev Prakash Sharma
Updated on 05-Aug-2021 13:59:25

2K+ Views

Tkinter Frame widget is very useful for grouping multiple widgets in a frame. It includes all the functions and properties that applies to the parent window.To create a Frame widget, we can instantiate an object of the Frame class. Once we define the Frame widget in the window, we can directly pick any widget and place it into the frame.ExampleIn this example, we've created a Frame widget and defined some widgets in it.# Import the required libraries from tkinter import * from tkinter import ttk # Create an instance of tkinter frame or window win=Tk() # Set the ... Read More

How to bind the Enter key to a tkinter window?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:57:57

18K+ Views

Tkinter events are executed at runtime and when we bind these events with a button or key, then we will get access to prioritize the event in the application.To bind the key with an event in Tkinter window, we can use bind('', callback) by specifying the key and the callback function as the arguments. Once we bind the key to an event, we can get full control over the events.Example# Import the required libraries from tkinter import * from PIL import Image, ImageTk # Create an instance of tkinter frame or window win=Tk() # Set the size ... Read More

How to draw a png image on a Python tkinter canvas?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:56:10

3K+ Views

To work with images in tkinter, Python provides PIL or Pillow toolkit. It has many built-in functions that can be used to operate an image of different formats.To open an image in a canvas widget, we have use create_image(x, y, image, **options) constructor. When we pass the Image value to the constructor, it will display the image in the canvas.Example# Import the required libraries from tkinter import * from PIL import Image, ImageTk # Create an instance of tkinter frame or window win=Tk() # Set the size of the window win.geometry("700x600") # Create a canvas widget canvas=Canvas(win, ... Read More

How to set the font size of Entry widget in Tkinter?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:54:30

4K+ Views

The Entry widget in tkinter is a basic one-line character Entry box that accepts single line user input. To configure the properties of the Entry widget such as its font-size and width, we can define an inline widget constructor.ExampleHere is an example of how you can define the font-size of the Entry widget.# Import the required libraries from tkinter import * from tkinter import ttk # Create an instance of tkinter frame or window win=Tk() # Set the size of the window win.geometry("700x350") # Create an Entry widget entry=Entry(win, width=35, font=('Georgia 20')) entry.pack() win.mainloop()OutputRun the above ... Read More

How to change the width of a Frame dynamically in Tkinter?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:53:31

19K+ Views

The frame widget in Tkinter works like a container where we can place widgets and all the other GUI components. To change the frame width dynamically, we can use the configure() method and define the width property in it.ExampleIn this example, we have created a button that is packed inside the main window and whenever we click the button, it will update the width of the frame.# Import the required libraries from tkinter import * from tkinter import ttk # Create an instance of tkinter frame or window win=Tk() # Set the size of the window win.geometry("700x350") ... Read More

How to dynamically add/remove/update labels in a Tkinter window?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:51:35

13K+ Views

We can use the Tkinter Label widget to display text and images. By configuring the label widget, we can dynamically change the text, images, and other properties of the widget.To dynamically update the Label widget, we can use either config(**options) or an inline configuration method such as for updating the text, we can use Label["text"]=text; for removing the label widget, we can use pack_forget() method.Example# Import the required libraries from tkinter import * from tkinter import ttk from PIL import ImageTk, Image # Create an instance of tkinter frame or window win=Tk() # Set the size of the ... Read More

How to draw a scale that ranges from red to green in Tkinter?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:49:31

1K+ Views

A color gradient defines the range of position-dependent colors. To be more specific, if you want to create a rectangular scale in an application that contains some color ranges in it (gradient), then we can follow these steps −Create a rectangle with a canvas widget and define its width and height.Define a function to fill the color in the range. To fill the color, we can use hex values inside a tuple.Iterate over the range of the color and fill the rectangle with it.Example# Import the required libraries from tkinter import * from tkinter import ttk # Create an ... Read More

How to get radiobutton output in Tkinter?

Dev Prakash Sharma
Updated on 05-Aug-2021 13:47:19

9K+ Views

The radiobutton widget in Tkinter allows the user to make a selection for only one option from a set of given choices. The radiobutton has only two values, either True or False.If we want to get the output to check which option the user has selected, then we can use the get() method. It returns the object that is defined as the variable. We can display the selection in a label widget by casting the integer value in a string object and pass it in the text attributes.Example# Import the required libraries from tkinter import * from tkinter import ttk # ... Read More

Advertisements