Book Image

Application Development with Qt Creator - Third Edition

By : Lee Zhi Eng, Ray Rischpater
Book Image

Application Development with Qt Creator - Third Edition

By: Lee Zhi Eng, Ray Rischpater

Overview of this book

Qt is a powerful development framework that serves as a complete toolset for building cross-platform applications, helping you reduce development time and improve productivity. Completely revised and updated to cover C++17 and the latest developments in Qt 5.12, this comprehensive guide is the third edition of Application Development with Qt Creator. You'll start by designing a user interface using Qt Designer and learn how to instantiate custom messages, forms, and dialogues. You'll then understand Qt's support for multithreading, a key tool for making applications responsive, and the use of Qt's Model-View-Controller (MVC) to display data and content. As you advance, you'll learn to draw images on screen using Graphics View Framework and create custom widgets that interoperate with Qt Widgets. This Qt programming book takes you through Qt Creator's latest features, such as Qt Quick Controls 2, enhanced CMake support, a new graphical editor for SCXML, and a model editor. You'll even work with multimedia and sensors using Qt Quick, and finally develop applications for mobile, IoT, and embedded devices using Qt Creator. By the end of this Qt book, you'll be able to create your own cross-platform applications from scratch using Qt Creator and the C++ programming language.
Table of Contents (19 chapters)
1
Section 1: The Basics
7
Section 2: Advanced Features
12
Section 3: Practical Matters

Configuring Qt for an embedded project

As you may already know, the Qt framework comes with an enormous set of libraries that may add up to several gigabytes of storage. Even at the minimum, these libraries could take up to 15 megabytes of storage, which is overkill for a small embedded device. To fix this problem, The Qt Company has provided us with a tool for configuring our Qt package before we build the Qt framework from the source for our embedded project. We can pick and choose the features that we want and discard the features that we don't need in order to reduce the Qt library size.

The tool is called the Qt Configuration Tool or qconfig-gui.exe and is located in the C:\Qt\Tools\QtConfigGui folder, as shown here:

Press the Run Configure button to start the configuration process, which will take some time to complete. Once completed, you can open up Command Prompt...