Book Image

Mastering Qt 5 - Second Edition

By : Guillaume Lazar, Robin Penea
Book Image

Mastering Qt 5 - Second Edition

By: Guillaume Lazar, Robin Penea

Overview of this book

Qt 5.11 is an app development framework that provides a great user experience and develops full capability applications with Qt Widgets, QML, and even Qt 3D. Whether you're building GUI prototypes or fully-fledged cross-platform GUI applications with a native look and feel, Mastering Qt 5 is your fastest, easiest, and most powerful solution. This book addresses various challenges and teaches you to successfully develop cross-platform applications using the Qt framework, with the help of well-organized projects. Working through this book, you will gain a better understanding of the Qt framework, as well as the tools required to resolve serious issues, such as linking, debugging, and multithreading. You'll start off your journey by discovering the new Qt 5.11 features, soon followed by exploring different platforms and learning to tame them. In addition to this, you'll interact with a gamepad using Qt Gamepad. Each chapter is a logical step for you to complete in order to master Qt. By the end of this book, you'll have created an application that has been tested and is ready to be shipped.
Table of Contents (16 chapters)

Loading your plugins dynamically

We will now deal with the application that loads these plugins:

  1. Create a new Subproject inside ch08-image-animation
  2. Select the Qt Widgets Application type
  3. Name it image-animation and accept the default Class Information settings

We have a few last things to do in the .pro files. First, image-animation will try to load the plugins from somewhere in its output directory. Because each filter-plugin project is independent, its output directory is separated from image-animation. Thus, each time you modify a plugin, you will have to copy the compiled shared library inside the proper image-animation directory. This works to make it available to the image-animation application, but we are lazy developers, right?

We can automate this by updating plugins-common-pri, like so:

INCLUDEPATH += $$PWD/sdk 
DEPENDPATH += $$PWD/sdk 
 
windows { 
    CONFIG(debug...