QQuickWidget as viewport for QMdiArea

ObiWanKennedy

I would like to use a QQuickWidget to show a 3D scene (QtQuick3D) as the background of a QMdiArea.

I tried to create a QQuickWidget and set it as the viewport of the QMdiArea but it didn't work at all. I got few error message such as Unrecognized OpenGL Version, and QQuickWidget: Failed to make context current.

I have other part of my software where I used QQuickWidget to show some QML items and they are working fine.

// in the constructor of my QMdiArea subclass.
    auto p= new QQuickWidget(); 

     auto engine= p->engine();
     connect(engine, &QQmlEngine::warnings, this, [](const QList<QQmlError>& warnings) {
         for(const auto& warn : warnings)
         {// never called
             qDebug() << "engine error:" << warn.description() << warn.messageType();
         }
     });
     connect(p, &QQuickWidget::statusChanged, this, [p](QQuickWidget::Status st) {
         if(st == QQuickWidget::Error)
         {// never called
             auto errors= p->errors();
             for(const auto& warn : errors)
             {
                 qDebug() << "quickwidget error:" << warn.description() << warn.messageType();
             }
         }
     });
     p->setSource(QUrl("qrc:/qml/views/DiceField.qml"));

     setViewport(p); // tried with or without hoping to have a second window or anything.
     p->show(); // tried with or without

Any clue ?
Regards.