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Python GUI Programming - A Complete Reference Guide

You're reading from   Python GUI Programming - A Complete Reference Guide Develop responsive and powerful GUI applications with PyQt and Tkinter

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Product type Course
Published in Jun 2019
Publisher Packt
ISBN-13 9781838988470
Length 746 pages
Edition 1st Edition
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Authors (2):
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B. M. Harwani B. M. Harwani
Author Profile Icon B. M. Harwani
B. M. Harwani
Alan D. Moore Alan D. Moore
Author Profile Icon Alan D. Moore
Alan D. Moore
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Toc

Table of Contents (28) Chapters Close

Title Page
Copyright About Packt Contributors Preface 1. Introduction to Tkinter FREE CHAPTER 2. Designing GUI Applications with Tkinter 3. Creating Basic Forms with Tkinter and ttk Widgets 4. Reducing User Error with Validation and Automation 5. Planning for the Expansion of Our Application 6. Creating Menus with Menu and Tkinter Dialogs 7. Navigating Records with Treeview 8. Improving the Look with Styles and Themes 9. Creating Automated Tests with unittest 10. Improving Data Storage with SQL 11. Connecting to the Cloud 12. Visualizing Data Using the Canvas Widget 13. Creating a User Interface with Qt Components 14. Event Handling - Signals and Slots 15. Understanding OOP Concepts 16. Understanding Dialogs 17. Understanding Layouts 18. Networking and Managing Large Documents 19. Database Handling 20. Using Graphics 21. Implementing Animation 22. Using Google Maps 1. Other Books You May Enjoy

The input dialog box

An input dialog box is with the help of the QInputDialog class. The QInputDialog class provides a dialog to get a single value from the user. The provided input dialog consists of a text field and two buttons, OK and Cancel. The text field enables us to get a single value from the user, where that single value can be a string, a number, or an item from a list. The following are the methods provided by the QInputDialog class to accept different types of input from the user:

  • getInt(): This method shows a spin box for accepting an integer number. To get an integer from the user, you need to use the following syntax:
getInt(self, window title, label before LineEdit widget, default value, minimum, maximum and step size)

Take a look at the following example:

quantity, ok = QInputDialog.getInt(self, "Order Quantity", "Enter quantity:&quot...
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