[BRLTTY] screen driver in brlapi

[Samuel Thibault]

Dave Mielke, le sam. 03 nov. 2018 19:28:45 -0400, a ecrit:
> >I guess poll will immediately return, because something happened since
> >the last read?
> 
> Yes. We can get into trouble, though, if, say, two changes occur and we only
> read in one of them and then expect to be able to wait for the second.

Ok, so we really have to read the whole screen before calling poll().

Thanks!
Samuel