Re: Improving Scroll Bar Tools

[Heime <heimeborgia@protonmail.com>]

On Monday, May 13th, 2024 at 3:01 AM, Eli Zaretskii <eliz@gnu.org> wrote:

> > Date: Sun, 12 May 2024 13:51:47 +0000
> > From: Heime heimeborgia@protonmail.com
> > Cc: help-gnu-emacs@gnu.org
> > 
> > On Sunday, May 12th, 2024 at 6:08 PM, Eli Zaretskii eliz@gnu.org wrote:
> > 
> > > No, I don't agree. The commands and features implemented by such a
> > > package should be able to take care of that without relying on the
> > > user's memory. The infrastructure exists already, for example in the
> > > form of scroll-bar-mode-hook and its ilk.
> > 
> > My point was identical - the package should take care of things without
> > relying upon the user's memory. I tried using my memory and it was awful.
> > 
> > How can a package know whether a window-specific setting was introduced by
> > set-window-scroll-bars ?
> 
> 
> By looking at the value returned by window-scroll-bars.
> 
> > Would you be kind enough to show the specific use of scroll-bar-mode-hook and
> > its ilk for the purpose you have in mind, so I can develop it ?
> 
> 
> Sorry, I don't have time (and I don't really know what you'd like to
> do when frame's scroll-bars are changed). I can describe the idea: in
> the hook function use set-window-scroll-bars to change the
> window-specific scroll bars according to what you want.

Eli, when set-window-scroll-bars have been applied to a window I want to know
some settings were applied.  That what you'd like to know.  For the reason
that I would know that those windows would be unaffected by user changes
to the minor mode settings.

Are you suggesting that I hook functions that handle set-window-scroll-bars 
commands with the scroll minor modes ?

Once a window settings have been changed by set-window-scroll-bars, how can
one release the change and make them once again affected by the minor modes.
In a previous comment, you described that the aforementioned situation might
not be a good idea because their use is not designed for such sort of thing.
What would be the standard procedure then, to kill or close the window ?