RE: set font size with ctrl-mouse wheel?

["Drew Adams" <drew.adams@oracle.com>]

> >> > It'd be great if emacs could do this.
> >> 
> >> I believe this is not the case. Using mouse wheel to change 
> >> font size is almost useless, especially for emacs.
> >
> > Why is it "almost useless"? I use it all the time. Very handy.
> > 
> > Yes, C-wheel might not be "standard", but it is pretty 
> > common - for MS Windows users, at least (and that's a lot
> > of users). It works in many apps on Windows, from browsers
> > to mail clients to, yes, editors.
> 
> C-=, C-+ and C-0 are more standard way of changing font size and Emacs
> has provided similar key bindings for them. In my view, this is
> sufficient.

OK, I see. By "almost useless" you meant only that you already have a different
way to do it, and one way is sufficient.

A keyboard is sufficient perhaps - why have a mouse?

> > It's simple to use, and it doesn't really conflict with any existing
> > Emacs key bindings, AFAIK. Yes, mwheel-scroll uses C-wheel, but it
> > also uses just plain wheel - no real need for it to also claim
> > C-wheel, AFAICT.
> 
> > You might not care to use C-wheel to zoom, in Emacs or 
> > elsewhere, but what reason do you have to say that it
> > "is almost useless, especially for emacs"?
> 
> Like I said, Emacs already has something for it. There is 
> little use to put in some extra non-standard, uncommon and
> clumsy feature.

1. Just because Emacs has one way to do something is not a reason it shouldn't
also have other ways to do it. If you applied that logic, you could remove
everything except `M-:' or `C-x C-e'.

2. It's not clear at all that `C-=' etc. are more standard than C-wheel. But
even if they were, see point #1.

3. There is nothing uncommon or clumsy about C-wheel. (a) It is very common. (b)
You haven't shown that it is "clumsy".

Of course, if you take as a given that all use of a mouse is "clumsy", then sure
(you've convinced yourself). By that argument, Emacs should remove all mouse and
menu and tool-bar support - too clumsy. But many (most?) users of computers
these days do use a mouse at least some of the time - that's hardly "uncommon".

At least it's clear now what your arguments are and what you meant by "almost
useless".