Can I see QScrollArea content outside the QScrollArea frame on the background of other widgets?

[Alex Shin]

I have messenger-like QMainWindow class with 4 widgets on QVBoxLayout. First,second and fourth - have transparent backgrounds. Third widget is QScrollArea with dialog. And it works well, but I want to see dialog continuation over this QScrollArea, to see dialog on the background of other widgets (1,2,4) (on top and bottom).

I'm asking about other ideas how I could see QScrollArea content on the background of other widgets. Maybe someone encounter with it.

I tried to solve this and nothing works for me besides one variant: is to bring other widgets to the front using .raise_() function and QScrollArea remains the same (and fills all window background). But other problems appear:

• Need to add padding at the top and bottom of dialog (because I can't scroll to first and last messages to see it not only on other widgets background). Also every time change these paddings if 1,2,4 widgets change their height.
• I need to see scrolls of QScrollArea only in third widget place, not on the whole window. And I don't know how to do it.

Actually, I don't like this variant. Would be grateful for any help.