probelm in setting the QGLWidget as viewport of QGraphicsView

[wagmare]

Hi friends,

Im facing a problem of adding a QGLWidget as a viewport of the GraphicsView ...
when i tried to show my QGLWidget it looks perfect ..
but when i tried to add as a QGrraphicsView viewport() im facing a problem...

this is how i added..

QApplication app(argc, argv);
 
        QGraphicsScene *scene = new QGraphicsScene;
        scene->setSceneRect(QRectF(0, 0, 1024, 800));
 
        QGraphicsView view;
 
        GLWidget *window = new GLWidget();
        window->makeCurrent();
        view.setViewport(window);
         view.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
        view.setScene(scene);
        view.show();

QApplication app(argc, argv);

        QGraphicsScene *scene = new QGraphicsScene;
        scene->setSceneRect(QRectF(0, 0, 1024, 800));

        QGraphicsView view;

        GLWidget *window = new GLWidget();
        window->makeCurrent();
        view.setViewport(window);
         view.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
        view.setScene(scene);
        view.show();

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the window looks white blank screen.. but when i show GLWidget alone it looks ok.. i drawn a polygon on a balck background QGLWidget ..
please help me ... thanks in advance !