bug#16431: 24.3.50; `follow-adjust-windows' sometimes fails (patch included)

[Stefan Monnier]

> Another thing -- you mentioned earlier that the region highlight is
> nowadays done in elisp, and that it might be possible for Follow mode to
> make it span multiple windows. Where can I find out more about this?

Look for redisplay-highlight-region-function and
redisplay-unhighlight-region-function.

You can also grep for them so as to see some example uses (it's used
currently in simple.el for the regular region stuff, and in rect.el and
cua-rect.el).


        Stefan