Re: Window configurations

[martin rudalics]

> I know you're not supposed to do that (I was just stress-testing) but after
>
>    (setq window-safe-min-height 0 window-min-height 0)
>
> you can make a one-line window with no mode-line. Shouldn't that be checked?

I'm cheating here.  The doc-string of the former says

  "The absolut minimum number of lines of a window.
Anything less might crash Emacs."

but you can quietly set it to an arbitrary value.  Emacs will crash ;-)
regardless of whether this has been changed - the value 1 is hardcoded
in C.

Now as a matter of fact if you do

  (setq window-safe-min-height 0)
  (setq window-min-height 0)

you can make the modeline of a window disappear.  This is intentional
for the following reason: When I drastically shrink a frame with the
window manager I prefer making windows without a modeline rather than
delete them.  The modelines will reappear as soon as the frame grows
again.  Unfortunately, I don't see any way to prevent this in the case
you describe since the window resizing code is in Elisp.  IIUC, even
putting these constants in pure store wouldn't prevent it.  But, after
all, anyone who changes the value of a constant is on her own?

martin