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

Implementing Multimedia with Qt Quick

Today's applications increasingly use multimedia to enhance their appeal to users. Sound effects are a key part of most user interfaces, and many applications include video tutorials or other video content. Some applications even use the camera provided on many devices; this is especially true of mobile applications, where most mobile devices have at least one, if not two or more cameras.

In this chapter, we will take a look at Qt Quick's support for multimedia. We'll begin with an overview of what's possible so that you understand what you can and can't build using the platform-agnostic support for multimedia that Qt provides. Next, we will look at the Qt Quick components that provide access for audio and video playback in detail, as well as how to use the camera, if it is supported.

In this chapter, we will cover...