Re: (make-frame-visible), doesn't

[Richard Stallman]

    > I don't think so. Any windowing system that supports overlapping windows 
    > can have "visible" windows that cannot be seen by the user due to being 
    > obscured behind other windows.
    > 

    Then should not the doc string say so?

We don't generally try to make doc strings explain so much background
info.  I added an explanation of this point in the Lisp Manual.
Thanks.