Setting size of QGraphicsScene-emulator problem or something is wrong in 6-line code?

[dAlexis_II]

I want to create scrollable graphics, not so large, as fullscreen ( N900, Qt Creator 1.3.83). After looking in animated tiles sample, I wrote the code below:

QGraphicsScene scene(0,0,400,400); //Smaller size
scene.setBackgroundBrush(Qt::blue); //for the first attempt
QGraphicsView *view = new QGraphicsView (&scene);
view->setCacheMode(QGraphicsView::CacheBackground);
view->show();
return a.exec();

In Maemo emulator (once more, Qt Creator 1.3.83 ) it shows blue fullscreen, not 400x400 area.
When I'm setting 900x900 size during my attempts - scrollbars are visible. This means, that parameters are exactly passing inside constructor and accepted OK.

I made a try to set

view->resize(400,400);

same thing (full blue screen, not area). Emulator, or something is forgotten|not known by me - any advice? (Maybe, I set wrong color, as in BSOD? )
P.S. How window title area with clock etc. may be hidden?

[divanov]

Most of the bugs occupy only one line.

#include <QtGui>

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

    QGraphicsScene scene;
    scene.setBackgroundBrush(Qt::blue);

    QGraphicsView view(&scene);
    view.setCacheMode(QGraphicsView::CacheBackground);
    view.setMaximumSize(400, 400);

    QMainWindow win;
    win.setCentralWidget(&view);
    win.show();

    return app.exec();
}

[divanov]

How window title area with clock etc. may be hidden?

They are not visible if window is in fullscreen mode.