Ok, that's just the original problem, as I wrote in the first message. We got there.
Indeed the question is very relevant about just that. It's why I asked it.
Is it somehow possible to have information about the pixel size of the simulator screen when displayed on the computer screen?
I mean, in real computer-screen pixel size
so to be able to have a real screenshot?
As I understand the only way is to measure the pixels on the computer screen.
If I am lucky some devices have less pixels of my computer screen, but I already know that it is not the case.
Would be it possible to have a new option on the simulator that
set the size at real pixel size?
It is technically possible because it is just as the user resized manually.
I know that the simulator would become a giant window in some cases, but it is just necessary for the moment of taking the screenshot.
The only caveat is to make it have the top-left corner in the top-left corner of the screen so the menu is accessible.
It could be done with just some lines of code, and it would be very useful for developers that have the BC in the layout, to make official screenshots.
Regards