Abdelrazak Younes wrote: > Peter Kümmel wrote: >> 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? > > Scratch it. shared_ptr::reset(new QPixmap(...)) will do that for you.
I don't think we could just delete it, it's in use, but I will try. Peter