QGraphicsView inside QMainWindow does not work ? (all code snippet pasted)

qt_fan_4k

I've no idea why the main window does not display the intended text, yet only blank ?

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    QGraphicsScene scene;
    scene.addText("Hello, world!");

    QGraphicsView *view = new QGraphicsView(this);
    view->setScene(&scene);
    this->setCentralWidget(view);
}

kshegunov

@qt_fan_4k
Hello,
Your scene object is on the stack, so it will be destroyed when the constructor exits.

Kind regards.

qt_fan_4k

Right.
This is not the first time I made such mistake. So the lifecycle of GraphicsScene is required for graphics view.

Thanks for the help. This is solved.