Book Image

Qt5 C++ GUI Programming Cookbook - Second Edition

By : Lee Zhi Eng
Book Image

Qt5 C++ GUI Programming Cookbook - Second Edition

By: Lee Zhi Eng

Overview of this book

With the growing need to develop GUIs for multiple targets and multiple screens, improving the visual quality of your application becomes important so that it stands out from your competitors. With its cross-platform ability and the latest UI paradigms, Qt makes it possible to build intuitive, interactive, and user-friendly user interfaces for your applications. Qt5 C++ GUI Programming Cookbook, Second Edition teaches you how to develop functional and appealing user interfaces using the latest version of QT5 and C++. This book will help you learn a variety of topics such as GUI customization and animation, graphics rendering, implementing Google Maps, and more. You will also be taken through advanced concepts like asynchronous programming, event handling using signals and slots, network programming, various aspects of optimizing your application. By the end of the book, you will be confident to design and customize GUI applications that meet your clients' expectations and have an understanding of best practice solutions for common problems.
Table of Contents (15 chapters)

UI events with signals and slots

In the previous example, we demonstrated the use of signals and slots on a push button. Now, let's explore the signals and slots that are available in other common widget types.

How to do it...

To learn how to use signals and slots with UI events, follow these steps:

  1. Let's create a new Qt Widgets Application project.
  2. Drag and drop a Push Button, Combo Box, Line Edit, Spin Box, and Slider from the Widget Box into your UI canvas:
  1. Then, right-click on the push button and select clicked() and press the OK button to proceed. A slot function will be created for you by Qt Creator:
  1. Repeat the previous step, but this time, select the next selection until every function in QAbstractButton...