Visible lines in a scrolling field.

Bob Sneidar bobs at
Fri Oct 14 11:49:51 EDT 2011

There is a property called the formattedHeight. There is also a property for the current scroll, not sure what it is called. Once you know the number of lines you have all the variables sorted. Between them you should get pretty close if not dead on. 


On Oct 13, 2011, at 10:05 PM, Ralph DiMola wrote:

> Does anyone know how to find out what lines are currently visible in a field
> with a vertical scrollbar? More importantly can I find out just before they
> are scrolling into view so I can do some stuff to the line(s) just before/as
> they become visible? If I process all the lines (say for 2-3 hundred) it
> take waayyy too long for it to finish and the vertical scrollbar motion or
> highlighting 1 line will not happen until the entire list is processed. I
> put some constructive waits in and it reduces the problem but doesn't fix
> it.
> Thanks
> Ralph DiMola
> IT Director
> Evergreen Information Services
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