Re: Update point in visible but non-selected buffer/window

[Joost Kremers]

On Fri, Oct 21 2016, Eli Zaretskii wrote:
> > From: Joost Kremers <joostkremers@fastmail.fm>
> > Date: Fri, 21 Oct 2016 10:39:37 +0200
> >
> > I just found out the hard way that changing point 
> > programmatically 
> > (i.e., from within an Elisp program) in a buffer that is 
> > visible 
> > in a non-selected window doesn't (necessarily?) update the 
> > position of the cursor, and when the window is selected again, 
> > point is reset to the cursor position.
>
> This is by design.  That's what window-point is about.  When you
> select a window, the buffer shown in that window gets its point 
> reset
> to the place of window-point, and the cursor is positioned
> accordingly.

Yeah, I assumed it was by design, because it makes sense.

> > I can see why this behaviour makes sense from a user's 
> > perspective, and I figured out that I can call `select-window' 
> > inside `with-current-buffer' to force the cursor position to 
> > change as well as point. But I haven't been able to find any 
> > info 
> > on this behaviour in the Elisp manual, so I was wondering if 
> > this 
> > has been described somewhere and whether the solution I 
> > stumbled 
> > upon (using `select-window') is the best way to achieve the 
> > effect 
> > I want, or whether there is a better, more canonical way.
>
> See window-point and set-window-point.

Thanks. I missed that.

--
Joost Kremers
Life has its moments