Book Image

Application Development with Qt Creator - Second Edition

Book Image

Application Development with Qt Creator - Second Edition

Overview of this book

Table of Contents (20 chapters)
Application Development with Qt Creator Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Integrating Qt Quick and C++


You can run a simple Qt Quick application using the qmlviewer application, an application provided as part of the Qt SDK. However, most of the time, you'll create a Qt Quick application using the Qt Quick application wizard in Qt Creator, which results in a hybrid application consisting of a Qt C++ application container and QML files as resources that the application loads and plays at runtime.

If we take a look at main.cpp in a project that we create with this wizard, we will see the following code:

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
  QGuiApplication app(argc, argv);

  QQmlApplicationEngine engine;
  engine.load(QUrl(QStringLiteral("qrc:///main.qml")));
  return app.exec();
}

This is pretty straightforward: it creates an instance of QQmlApplicationEngine, a class that inherits from QGuiApplication, and instantiates a top-level window containing a single instance of QQmlEngine, the Qt Quick...