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

Deploying on desktop platforms

You have seen that there's a lot to consider when deploying a Qt application. Fortunately, Qt provides a tool that can assist us in this process by scanning the generated application binary, identifying all dependencies, and copying them to the deployment directory. We will deploy our application on various platforms to achieve different objectives, but the concepts will remain the same. Once we have our binary built, the first thing we need to do is add the dependencies so that the user can execute the application without difficulties.

There are two ways in which we may load the dependencies. We can do it manually or use certain tools that are provided by the Qt framework or by a third party. On Windows, we can use windeployqt to load our dependencies. On macOS, we can use macdeployqt to load our dependencies for our binary. There is also another tool called linuxdeployqt that you can use to add the dependencies to your binary. linuxdeployqt...