How to interface Qt Quick UI code with Qt creator pluing?

[mut]

Hello;

I'm trying to build a plugin for Qt Creator as described in [1] http://doc.qt.digia.com/qtcreator-ex...st-plugin.html.
The plugin should use Qt Quick QML.

I wonder how to insert this code from the main() function of a destktop Qt Quick app:

QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine("main.qml");
    QObject *root = engine.rootObjects().at(0);
    QQuickWindow *window =
    qobject_cast<QQuickWindow*>(root);
    if (!window) {
    qFatal("Error: No window found!");
    }
    window->show();
    return app.exec();

QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine("main.qml");
    QObject *root = engine.rootObjects().at(0);
    QQuickWindow *window =
    qobject_cast<QQuickWindow*>(root);
    if (!window) {
    qFatal("Error: No window found!");
    }
    window->show();
    return app.exec();

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into the basic template plugin generated by Qt Creator.

How to interface with:

void ExamplePlugin::triggerAction()
 {
 
   QMessageBox::information(Core::ICore::instance()->mainWindow(),
                              tr("Action triggered"),
                              tr("This is an action from Example."));
 }

void ExamplePlugin::triggerAction()
 {

   QMessageBox::information(Core::ICore::instance()->mainWindow(),
                              tr("Action triggered"),
                              tr("This is an action from Example."));
 }

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Should my code for the Qt Creator plugin acts as a library of the template plugin?


Thank you for any reply.