Re: set-frame-parameter

[Stephen Berman]

On Thu, 10 Dec 2020 01:19:45 +0100 Michael Heerdegen <michael_heerdegen@web.de> 
wrote:

> steve-humphreys@gmx.com writes:
>
>> I have tried it that way, but the frame stays at fullheight, rather
>> than being set to 13.
>
> FWIW, I'm seeing the same as you.  I can turn off the frame's fullscreen
> mode explicitly and then "it works":
>
> (set-frame-parameter (selected-frame) 'fullscreen nil)
>
> HTH,
>
> Michael.

On Thu, 10 Dec 2020 08:13:29 -0800 (PST) Drew Adams <drew.adams@oracle.com> 
wrote:

> Do we know whether it was explicitly by design
> that you can't change the frame size when it's
> fullscreen without first turning off fullscreen?
>
> That seems odd to me, but perhaps it is by design
> and there's a good reason for it.  If not, maybe
> it should be fixed...

It seems that my observations are at odds with those of the rest of you.
Nevertheless, when I start Emacs (26-28) with -Q and type C-j after each
of the following sexps in *scratch*, I get the frame width and height
values displayed and see the frame size change accordingly:

(frame-width)
80
(frame-height)
36
(set-frame-parameter nil 'fullscreen 'fullheight)
(frame-width)
80
(frame-height)
77
(set-frame-size nil 58 13)
(frame-width)
58
(frame-height)
13

I wonder why I get these results but others don't.

Steve Berman