Thanks! It is what I want.


On Wed, Jan 15, 2014 at 2:55 AM, Eli Zaretskii <eliz@gnu.org> wrote:

> > From: Darren Hoo <darren.hoo@gmail.com>
> > Date: Wed, 15 Jan 2014 01:59:32 +0800
> >
> > if a line wrap or truncation happens how can I get the column number
> > relative to the beginning of the line displayed? for example:
> >
> > -------------------------------------------------------------
> > This is a a loooooooooooooooooooooooooooooooooooooooooog line
> > start of the continuation <!> line
> > -------------------------------------------------------------
> >
> > If point stays at <!>, some function `current-screen-column' should
> > return the relative column number to "start".
>
> I think you want posn-at-point.
>