Scrollbar -- how to differentiate arrows from slider itself

[macias]

Hello,

I would like to know if the scrollbar position was changed by dragging slider or by pressing arrows (little widgets at the end of slider).

Background: I am using QTableWidget and I would like to two ways of scrolling, via dragging slider -> fine, precise scrolling line (pixel) by line, or via clicking on arrows to provide faster scrolling, by row.

have a nice day, bye