Re: Emacs terminology (not again!?)

[Daniel Colascione]

On 01/18/2014 12:34 AM, Eli Zaretskii wrote:
> > Date: Fri, 17 Jan 2014 19:02:53 -0800
> > From: Daniel Colascione <address@hidden>
> > Cc: Per Starbäck <address@hidden>,
> >         "Richard M. Stallman" <address@hidden>, David Kastrup <address@hidden>,
> >         "address@hidden" <address@hidden>
> >
> > Try making a mode that allows point to be off-screen while scrolling
> > like it can be in most other editors.
>
> It is a common misconception that Emacs cannot do this.  It can.  How
> do you think it pulls the trick of allowing you to scroll pixel-wise
> through a very large image?

Thanks. I never use Emacs to view images, so I didn't know we could do that.

> It is a UI design decision in Emacs to always show point on screen.
> But nothing prevents us from writing a mode that leaves point off
> screen, or even abandoning that decision if we want (and I'm not
> saying we do).  The infrastructure is there, check out the vscroll
> thingy and window-vscroll.

Interesting. I may have to play with this functionality more after the 
feature freeze. Is (set-window-vscroll nil 500 t) supposed to move the 
window viewport? I didn't see anything change when I tried it in a quick 
test.