Book Image

Hands-On GUI Programming with C++ and Qt5

By : Lee Zhi Eng
Book Image

Hands-On GUI Programming with C++ and Qt5

By: Lee Zhi Eng

Overview of this book

Qt 5, the latest version of Qt, enables you to develop applications with complex user interfaces for multiple targets. It provides you with faster and smarter ways to create modern UIs and applications for multiple platforms. This book will teach you to design and build graphical user interfaces that are functional, appealing, and user-friendly. In the initial part of the book, you will learn what Qt 5 is and what you can do with it. You will explore the Qt Designer, discover the different types of widgets generally used in Qt 5, and then connect your application to the database to perform dynamic operations. Next, you will be introduced to Qt 5 chart which allows you to easily render different types of graphs and charts and incorporate List View Widgets in your application. You will also work with various Qt modules, like QtLocation, QtWebEngine, and the networking module through the course of the book. Finally, we will focus on cross-platform development with QT 5 that enables you to code once and run it everywhere, including mobile platforms. By the end of this book, you will have successfully learned about high-end GUI applications and will be capable of building many more powerful, cross-platform applications.
Table of Contents (18 chapters)

Integrating JavaScript and C++

One powerful feature of using Qt's web engine module is that it can call JavaScript functions from C++, as well as calling C++ functions from JavaScript. This makes it more than just a web browser. You can use this to access features that are not supported by the web browser standard, such as file management and hardware integration. Things like that are not possible with W3C standards; hence, it is not possible to do it in native JavaScript. However, you can implement these features using C++ and Qt, then simply call the C++ functions from your JavaScript. Let's take a look at how we can achieve this with Qt.

Calling JavaScript functions from C++

After that, add in the following code...