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

A review – running and debugging your application

You'll spend a lot of time editing, compiling, and debugging your code in Qt Creator, so it's wise to remember the following basics:

  • The arrow key runs your application without the debugger; to debug your application, choose the arrow key with the bug icon on it.
  • You can switch between the Editor view and the Debug view of your application by clicking on the Edit or Debug view choice on the left-hand side; if you debug your application, Qt Creator will enter the Debug view automatically.
  • There's more to breakpoints than just stopping at a line of code! Use data breakpoints to pin down weird bugs that occur only sometimes, or to quickly skip over the first bazillion items of a large loop.
  • The variable pane lets you see more than just the contents of variables; you can also add expressions composed of several...