Integration C++/QML

[Mhaylson]

I have a GUI project with several sub-projects, that is a very extensive directories of tree. Many sub-projects are GUI plugins. I am wanting to make a sub-project with QML, or want to migrate GUI for QML. When I call the QML, my QML screen appears:

    engine.addImportPath("/home/mhaylson/m2smart/dsm/src/module");
    qDebug() << engine.importPathList();

    component = new QQmlComponent(&engine, QUrl("qrc:/cashierqml/imports/CashierQml/CashierNfce.qml"));
        if (component->isLoading())
            QObject::connect(component, SIGNAL(statusChanged(QQmlComponent::Status)),
                             this, SLOT(continueLoading()));
        else
            continueLoading();

if (component->isError()) {
        qWarning() << component->errors();
    } else {
        QObject *myObject = component->create();

        QObject::connect(myObject, SIGNAL(signalShowMessag(QString)), this, SLOT(showMessa(QString)));
}

But my QML screen "freezes", or click on a button or try to do some interaction or action and nothing happens. I did QML screen test on a new project and it worked properly.

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

       QQmlApplicationEngine engine;
       engine.load(QUrl(QStringLiteral("qrc:/cashierqml/imports/CashierQml/CashierNfce.qml")));

return app.exec();
  }

Why that?