[Solved] QTableView check is row is shown in visible area

[Talei]

Hello,
I have QTableView with i.e. 100 items (standard item model). View visible area can display only 10 items. Now I want to check if item i.e. 50 is in view visible area.
Question how to do that?

Thanks for any advice.

EDIT:
SOLVED.
Solution was to compare regions, my fault.