Abdelrazak Younes wrote: > > Try to inverse the two lines: > > paint_device_ = QPixmap(viewport()->width(), viewport()->height()); > verticalScrollBar()->setPageStep(viewport()->height());
Does not help. > I guess the "verticalScrollBar()->setPageStep()" results in a painting > event so paint_device_ is used at the same time it is being re-affected. > > If that does not solve the problem, maybe the solution is to use a > shared_ptr<QPixmap> instead of a QPixmap for paint_device_. But when we reset the shared_ptr with a new QPixmap what should we do with the old one?
