GUI programming is not as difficult as you think. At least it's not when you come to the world of Qt. This book will take you through this world and give you an insight into this incredibly amazing toolkit. It doesn't matter whether you've heard of it or not, as long as you have essential knowledge of C++ programming.
In this chapter, we will get you comfortable with the development of Qt applications. Simple applications are used as a demonstration for you to cover the following topics:
Creating a new project
Changing the layout of widgets
Understanding the mechanism of signals and slots
Connecting two signals
Creating a Qt Quick application
Connecting C++ slots to QML signals