Book Image

Mastering Qt 5

By : Guillaume Lazar, Robin Penea
Book Image

Mastering Qt 5

By: Guillaume Lazar, Robin Penea

Overview of this book

Qt 5.7 is an application development framework that provides a great user experience and develops full-capability applications with Qt Widgets, QML, and even Qt 3D. This book will address challenges in successfully developing cross-platform applications with the Qt framework. Cross-platform development needs a well-organized project. Using this book, you will have a better understanding of the Qt framework and the tools to resolve serious issues such as linking, debugging, and multithreading. Your journey will start with the new Qt 5 features. Then you will explore different platforms and learn to tame them. Every chapter along the way is a logical step that you must take to master Qt. The journey will end in an application that has been tested and is ready to be shipped.
Table of Contents (20 chapters)
Mastering Qt 5
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface

Loading your plugins dynamically


We will now deal with the application loading these plugins:

  1. Create a new Subproject inside ch08-image-animation.

  2. Select the type Qt Widgets Application.

  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 yourself 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, debug|release) { 
        target_install_path = $$OUT_PWD/../image-animation/debug/plugins/ 
    } else { 
 ...