Graphicsview paints first the background, then the layer and last the foreground.
I'd like to use the foreground to draw some dynamic things over the main geometric information, but I dont know how to send an update order only for the foreground.
Any idea ? Thanks
Added after 57 minutes:
I answer myself:
G_scene->invalidate(QRect(),QGraphicsScene::ForegroundLaye r);
Excuse me ,,..
