Book Image

Qt5 C++ GUI Programming Cookbook - Second Edition

By : Lee Zhi Eng
Book Image

Qt5 C++ GUI Programming Cookbook - Second Edition

By: Lee Zhi Eng

Overview of this book

With the growing need to develop GUIs for multiple targets and multiple screens, improving the visual quality of your application becomes important so that it stands out from your competitors. With its cross-platform ability and the latest UI paradigms, Qt makes it possible to build intuitive, interactive, and user-friendly user interfaces for your applications. Qt5 C++ GUI Programming Cookbook, Second Edition teaches you how to develop functional and appealing user interfaces using the latest version of QT5 and C++. This book will help you learn a variety of topics such as GUI customization and animation, graphics rendering, implementing Google Maps, and more. You will also be taken through advanced concepts like asynchronous programming, event handling using signals and slots, network programming, various aspects of optimizing your application. By the end of the book, you will be confident to design and customize GUI applications that meet your clients' expectations and have an understanding of best practice solutions for common problems.
Table of Contents (15 chapters)

Processing XML data using the QDomDocument class

Qt allows multiple ways to parse XML data, including the common method that we covered in the previous examples. This time around, we're going to learn how to read data from an XML file using another class, called QDomDocument.

How to do it...

Processing XML data using the QDomDocument class is really simple:

  1. Add the XML module to the project by opening the project (.pro) file and adding the xml text after core and gui, as shown in the following code:
QT += core gui xml
  1. Create a user interface that carries a button that says Load XML:
  1. Right-click on the button, choose Go to slot…, and select the clicked() option. Press the OK button and Qt will add a slot function...