QPlaneMesh geometry is null

[ugonight]

I am using Qt 6.7.0.

I want to get the coordinates of the four corners of a QPlaneMesh, but QPlaneMesh::geometry() is NULL.

#include <QGuiApplication>

#include <Qt3DInput/QInputAspect>

#include <Qt3DRender>
#include <Qt3DExtras>
#include <Qt3DCore>

Qt3DCore::QEntity* createScene()
{
    // Root entity
    Qt3DCore::QEntity* rootEntity = new Qt3DCore::QEntity;

    // Material
    auto material = new Qt3DExtras::QPhongMaterial(rootEntity);

    // Plane
    auto planeEntity = new Qt3DCore::QEntity(rootEntity);
    auto planeMesh = new Qt3DExtras::QPlaneMesh;
    planeMesh->setWidth(5);
    planeMesh->setHeight(5);

    auto planeTransform = new Qt3DCore::QTransform;
    planeTransform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(1, 0, 0), 45.0f));

    planeEntity->addComponent(planeMesh);
    planeEntity->addComponent(planeTransform);
    planeEntity->addComponent(material);

    auto geometry = planeMesh->geometry(); // null
    for (auto attribute : geometry->attributes())
    {
        // ...
    }

    return rootEntity;
}

int main(int argc, char* argv[])
{
    QGuiApplication app(argc, argv);
    Qt3DExtras::Qt3DWindow view;

    Qt3DCore::QEntity* scene = createScene();

    // Camera
    Qt3DRender::QCamera* camera = view.camera();
    camera->lens()->setPerspectiveProjection(45.0f, 16.0f / 9.0f, 0.1f, 1000.0f);
    camera->setPosition(QVector3D(0, 0, 40.0f));
    camera->setViewCenter(QVector3D(0, 0, 0));

    // For camera controls
    Qt3DExtras::QOrbitCameraController* camController = new Qt3DExtras::QOrbitCameraController(scene);
    camController->setLinearSpeed(50.0f);
    camController->setLookSpeed(180.0f);
    camController->setCamera(camera);

    view.setRootEntity(scene);
    view.show();

    return app.exec();
}

I used the code on the following page as a reference, but does it not work with the current version? Or is there some additional processing that needs to be added?
https://stackoverflow.com/questions/65886488/qt3d-can-i-list-all-vertexes-from-qt3drenderqgeometryrenderer

[ugonight]

It was possible to obtain it via the QGeometryView class like planeMesh->view()->geometry().