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From: daved@usperb.Dayton.NCR.COM (Dave Dresselhouse)
Newsgroups: comp.databases
Subject: Re: Oracle Forms & Wyse50/Vt100
Keywords: ORACLE SQL*Forms
Message-ID: <469@usperb.Dayton.NCR.COM>
Date: 5 Mar 90 12:24:38 GMT
References: <361@cmsfl> <468@usperb.Dayton.NCR.COM> <2321@ucqais.uc.edu>
Reply-To: daved@usperb.Dayton.NCR.COM (Dave Dresselhouse)
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Organization: NCR Corporation - U.S. Group
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In article <2321@ucqais.uc.edu> skilby@ucqais.uc.edu (Steven Kilby) writes:
>In my understanding and experience, you can develope a form on any type
>terminal and then use it on any other terminal.  As long as the the 
>given terminals are defined and have *.crt files.  I have developed several
>fomrs on both AT&T 610's and DEC VT340's and then run them on a ADDS
>Viewpoint.  The Viewpoint is made by NCR and has no graphics character set.
>As Mr. Greenlaw, a staff engineer at Oracle, has stated in a previous
>article, there is software included with oracle to define almost any
>terminal.  If used properly, the software will generate boxes with 
>appropriate graphic characters or use -,|,+ for terminals that do not support
>a graphic character set.  This is fully documented in the DBA manual and
>in the Installation manual.
>
This doesn't work with the version of Forms that we're running! Even though
the CRT tables (crt, crtbox, esc, etc) have correct entries for both crt types,
a form generated for one crt type will not display graphic characters on anothercrt type if the _set graphics on_ sequence is enabled on the second crt's
crt definition. What happens is, Forms outputs to the screen the characters
that define the graphics characters for the first crt, even though you are 
running the form with the option telling Forms you are using the second crt
type. Perhaps this is a bug in FORMS 2.0, and it has been fixed in 2.3 or 3.0.
Anyway, my FORMS 2.0 manual (page 4-22) says:
  ...forms that use lines, boxes or graphics characters - those unique to
  a particular type of terminal - may not be fully device independent. 
  These forms may have to be regenerated or even modified for use on more
  than one display device, or for use on a display device other than your
  installation's default.
I've found this to be true.

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Dave Dresselhouse                          d.dresselhouse@dayton.NCR.COM
NCR Corporation                            (513) 445-4449
U.S. Group, Dayton, OH
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