Hrvoje Niksic <hniksic(a)srce.hr&gt; writes: Have you tried this? When I open two windows viewing the buffer the isearch highlighting occurs in both windows. Maybe that is wrong. The reason for that is that when you are in isearch you more or less control the event loop. However I think this a very special situation. A situation that is also handled by lazy-shot style handling; Wouldn't love to simply be able to say (do-on-demand 'isearch-highlight-other-matches-in-region) and have the rest be done for you? Do you handle font changes, window resizing etc? You are basically trying to reinvent lazy-lock v1 for your special case. Maybe the problems don't hurt you that much in the special case but it still has a "wrongish" feel to me.. Why do you care about lines? OK, but this isn't really the same problem. You do not really want to force a redisplay, you want to force the code that makes sure point always stays visible to be run. You have a point in that might be a good thing to add in a `guarantee' argument for site-start. Jan