API for OS window location

[Kethku]

Coming from emacs/spacemacs I'm used to being able to have multiple frames open at a time and being able to navigate between them using a keyboard. I'm interested in building this functionality in neovim/fvim, but to get it to work smoothly I need some way to get the current window position from vimscript.

I do not want to distract you from the awesome work you are doing, but I would appreciate it if you could give any off the top of your head hints for where I might look to implement such a feature.

Thanks again for your great work.

[yatli]

Something like this would be cool -- also API for resizing window, or even moving multiple instances into a favourable layout.