How to get scroll bar real width in Qt?

Question

I\'m trying to make a custom widget, which is basically a bunch of textedits with a single vertical scroll bar on the right. To keep widget size determined, I have to find a

Answer 1

I've also found

vsb->sliderRect().width(); 

which happens to be correct, but it looks bad in the code, as I have no interest in slider per se.

Answer 2

int w = qApp->style()->pixelMetric(QStyle::PM_ScrollBarExtent);