Reflections would be a good choice.  Reflections Basic Script allows you the
functionality to grab data from the terminal screen and post (through DDE or
OLE) to windows applications.  I wrote a script a few years ago to display the
number of records in a database vs. the capacity of the database in a graph.  I
set it up to check the database every few minutes for changes while I was
running a job to move records off to a history database.  The dde update worked
well and you could watch as the record count went down in one database as it
went up in the other.  I'll see if I still have it laying around.
You may have to modify a bit to scrape the screen of the cobol app at
particular x,y locations.

Geo.
____________________Reply Separator____________________
Subject:    Capture data from legacy into excel and vice-versa...
Author: benedict de guzman <[log in to unmask]>
Date:       4/30/97 2:32 AM

Does anyone know the best way of capturing data from an on-line screen
program (written in COBOL) running through a terminal emulation like
'Reflections' or 'Minisoft' connected to a HP3000 Mpe/ix TurboImage
platform, into Microsoft Excel and vice-versa????...Can I use VB, Java, or
any other scripting language???