Update scene after moving QGraphicsItem

[rogerholmes]

I am moving a QGraphicsItem in a scene using item->setPos(), this works but, how do you update the scene to register the new position .

i am using a function:

if(picItem->boundingRect().contains(pos))
        {
            QApplication::beep();
        }

if(picItem->boundingRect().contains(pos))
        {
            QApplication::beep();
        }

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in a mouseover to show where the scene has the item registered.

now the scene beeps at the original position even though the item is visible at a new position, i need to tell the scene the item has moved so it will beep at the new position.