chasing the thumb in a scrollbar
mdswindell at cruzio.com
Fri Feb 6 00:38:06 EST 2009
That won't work in this case as it's just a horizontal scrollbar not
attached to a field or group.
On Feb 5, 2009, at 9:32 PM, dunbarx wrote:
> Can't you get the position of the thumb by checking the scroll of
> the field?
> If you know how many lines in the field, and you know the scroll of
> the field, you can calculate the percentage of the height of the
> field that the thumb is currently indicating. Since you know the top
> and bot of the field, you can get the thumbLoc. Write a function,
> and just call it when you need it.
> Craig Newman
> On Feb 6, 2009, at 12:18:12 AM, "Mark Swindell"
> <mdswindell at cruzio.com> wrote:
> Can one refer to the location of just the thumb of a scrollbar
> relative to its window? I want to chase the thumb with a a graphic...
> essentially a transparent rectangle whose left would stick to the left
> of a horizontal scrollbar and whose right would follow the thumb as it
> moves. I can use the mouseLoc to come close, but it isn't exact, and
> I also need to refer to the loc of the thumb from outside the
> scrollbarDrag handler.
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