Book Image

Getting Started with Qt 5

By : Benjamin Baka
Book Image

Getting Started with Qt 5

By: Benjamin Baka

Overview of this book

Qt is a cross-platform application framework and widget toolkit that is used to create GUI applications that can run on different hardware and operating systems. The main aim of this book is to introduce Qt to the reader. Through the use of simple examples, we will walk you through building blocks without focusing too much on theory. Qt is a popular tool that can be used for building a variety of applications, such as web browsers, media players such as VLC, and Adobe Photoshop. Following Qt installation and setup, the book dives straight into helping you create your first application. You will be introduced to Widgets, Qt's interface building block, and the many varieties that are available for creating GUIs. Next, Qt's core concept of signals and slots are well illustrated with sufficient examples. The book further teaches you how to create custom widgets, signals and slots, and how to communicate useful information via dialog boxes. To cap everything off, you will be taken through writing applications that can connect to databases in order to persist data. By the end of the book, you should be well equipped to start creating your own Qt applications and confident enough to pick up more advanced Qt techniques and materials to hone your skills.
Table of Contents (8 chapters)


The QtSql module comes equipped with classes and drivers for accessing databases. To proceed beyond this point, you should have made the necessary configuration during the installation of Qt on your system to enable database access.

For those on the macOS using Homebrew, remember to issue the command as previously described in Chapter 1, Introducing Qt 5.

Linux users have to install the modules and enable the correct flags during compilation to make the QtSql module work, but, for the most part, the instructions in Chapter 1, Introducing Qt 5, should suffice.

The QtSql module is comprised of the following layers:

  • UI layer
  • SQL API layer
  • Driver layer

Each level makes use of classes, as illustrated in the preceding diagram.

Making the connection