Hands-On GUI Programming with C++ and Qt5

Running our first Hello World Qt program

A Hello World program is a very simple program that does nothing more than display an output that says Hello, World! (or any other thing, not necessarily this) to show that the SDK is working properly. We don't need to write very long code to produce a Hello World program, we can do it using only the very minimum and the most basic code. In fact, we don't have to write any code in Qt, as it will generate the code when you first create your project!

Let's begin our project by following these steps:

1. To create a new project in Qt, click the New Project button located at the welcome screen on your Qt Creator. Alternatively, you can also go to the top menu and select File | New File or Project.

2. After ...