Book Image

Cross-Platform Development with Qt 6 and Modern C++

By : Nibedit Dey
Book Image

Cross-Platform Development with Qt 6 and Modern C++

By: Nibedit Dey

Overview of this book

Qt is a cross-platform application development framework widely used for developing applications that can run on a wide range of hardware platforms with little to no change in the underlying codebase. If you have basic knowledge of C++ and want to build desktop or mobile applications with a modern graphical user interface (GUI), Qt is the right choice for you. Cross-Platform Development with Qt 6 and Modern C++ helps you understand why Qt is one of the favorite GUI frameworks adopted by industries worldwide, covering the essentials of programming GUI apps across a multitude of platforms using the standard C++17 and Qt 6 features. Starting with the fundamentals of the Qt framework, including the features offered by Qt Creator, this practical guide will show you how to create classic user interfaces using Qt Widgets and touch-friendly user interfaces using Qt Quick. As you advance, you'll explore the Qt Creator IDE for developing applications for multiple desktops as well as for embedded and mobile platforms. You will also learn advanced concepts about signals and slots. Finally, the book takes you through debugging and testing your app with Qt Creator IDE. By the end of this book, you'll be able to build cross-platform applications with a modern GUI along with the speed and power of native apps.
Table of Contents (17 chapters)
Section 1: The Basics
Section 2: Cross-Platform Development
Section 3: Advanced Programming, Debugging, and Deployment


In this chapter, we discussed performance considerations and how to improve your overall application performance. We started with improving C++ code. Then, we explained how concurrency techniques can help in making your application faster. You learned about QML Profiler and other profiling tools. You also understood the importance of using best practices while coding in Qt. Now, you can use these techniques in everyday coding. You don't have to be an extraordinary application developer to do performance optimization. If you follow best practices, design patterns, and write better algorithms, then your application will have fewer defects and fewer customer complaints. It is a continuous process, and you will gradually become better at it.

Congratulations! You have learned the basics of performance optimization. If you are curious to know more, then you can read more books specifically written for performance tuning. Happy coding in Qt. Remember—writing better...