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

Introducing the new Qt Quick Controls 2

Ever since Qt 5.6, Qt Quick Controls 2 has been released to replace version 1, which is known to have performance issues and technical problems, which led to its deprecation. With Qt Quick Controls 2, everything has been rebuilt from scratch with performance in mind. Qt Quick Controls 2 not only run smoothly on PC, but also mobile and embedded devices.

To use Qt Quick Controls 2 in your project, perform the following steps:

  1. Add the following module to your QML file:
import QtQuick.Controls 2.12
  1. If you somehow need to use Qt Quick Control 2 in your C++ code, you must first add the quickcontrols2 module to your qmake project file:
QT += quickcontrols2
  1. After that, you may include the QtQuickControls2 header in your C++ source code:
#include <QtQuickControls2>

Following are some of the QML Types available under Qt Quick Control 2...