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Python GUI Programming with Tkinter, 2nd edition

You're reading from   Python GUI Programming with Tkinter, 2nd edition Design and build functional and user-friendly GUI applications

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Product type Paperback
Published in Oct 2021
Publisher Packt
ISBN-13 9781801815925
Length 664 pages
Edition 2nd Edition
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Author (1):
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Alan D. Moore Alan D. Moore
Author Profile Icon Alan D. Moore
Alan D. Moore
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Toc

Table of Contents (22) Chapters Close

Preface 1. Introduction to Tkinter 2. Designing GUI Applications FREE CHAPTER 3. Creating Basic Forms with Tkinter and Ttk Widgets 4. Organizing Our Code with Classes 5. Reducing User Error with Validation and Automation 6. Planning for the Expansion of Our Application 7. Creating Menus with Menu and Tkinter Dialogs 8. Navigating Records with Treeview and Notebook 9. Improving the Look with Styles and Themes 10. Maintaining Cross-Platform Compatibility 11. Creating Automated Tests with unittest 12. Improving Data Storage with SQL 13. Connecting to the Cloud 14. Asynchronous Programming with Thread and Queue 15. Visualizing Data Using the Canvas Widget 16. Packaging with setuptools and cxFreeze 17. A: A Quick Primer on reStructuredText 18. B: A Quick SQL Tutorial 19. Other Books You May Enjoy
20. Index
Appendices

Drawing and animation with Tkinter's Canvas

The Canvas widget is undoubtedly one of the most powerful widgets available in Tkinter. It can be used to build anything from custom widgets and views to complete user interfaces.

As the name implies, a Canvas widget is a blank area on which figures and images can be drawn. To understand its basic usage, let's create a small demo script.

Begin the script by creating a root window and a Canvas object:

# simple_canvas_demo.py
import tkinter as tk
root = tk.Tk()
canvas = tk.Canvas(
  root, background='black',
  width=1024, height=768
)
canvas.pack()

Creating a Canvas object is just like creating any other Tkinter widget. In addition to the parent widget and background argument, we can also specify width and height arguments to set the size of the Canvas. Setting the size of a Canvas widget is important, because it defines not only the size of the widget but also the viewport; that is, the area in which...

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