Is your feature request about something that is currently impossible or hard to do? Please describe the problem.

Background: I have multiple machines and two screens on one of them. On my main machine, on the secondary screen where I usually run MacVim, I have my font to :h16, but I need it at :h12 (or so) on my main laptop screen (or on my secondary machine where there is no secondary screen).

Describe the solution you'd like

I would like to be able to have a function in MacVim return the current window's screen information—screen width / height in pixels, screen name, other details; similar to the output of system_profiler SPDisplaysDataType:

Graphics/Displays:
 Apple M4 Pro:
 Chipset Model: Apple M4 Pro
 Type: GPU
 Bus: Built-In
 Total Number of Cores: 16
 Vendor: Apple (0x106b)
 Metal Support: Metal 3
 Displays:
 Color LCD:
 Display Type: Built-in Liquid Retina XDR Display
 Resolution: 3024 x 1964 Retina
 Main Display: Yes
 Mirror: Off
 Online: Yes
 Automatically Adjust Brightness: Yes
 Connection Type: Internal

If possible, it would be nice to have an event (WindowScreenChanged or something like that) which could be used to trigger when the window has been moved to a different screen or the screen has been resized or something.

Describe alternatives you've considered

I don't think that there are alternatives which let me know which screen the current window is on, even if some of this could be executed via osascript.