Re: Pete's web5250 was->Re: Business Developers was ->Re: IBM Gives RPG Devotees Their Own Café

* Nathat wrote: But when I think about what it would take to write
something of a 5250 client in JavaScript, I'm daunted by it. Of course, if
Niels wants to do it ;-)

I don?t know if I can do it ? but I?m ready to give it at shot :-) If I
start crying I?ll consult you guys or ask some of the brains here at S&M
that can ?weld under water? with JavaScript.

Last time I was looking at the virtual terminal API was some four years ago.
I made a nice little customer support 5250 terminal over an IIS web
application in Microsoft VB-ASP. It was simply replicating the 5250 stream
back and forth between the customer site ? over the IIS ? back to our
support 5250 terminal ? It worked like a charm until we finally go ?go to
assist? which covers all our customer support needs.

The application was based on a sample I found at IBM, so my knowledge about
the virtual terminal API is limited. On the other hand I wrote a lot of core
5250 stream applications on S/36 in assembler back in the mid eighties. I
was moving the bricks in the S/36 game ?Towers of Hanoi? that way. :-)


I have also been looking at the QDFRTVDF (Retrieve Display File) API to
enhance the JSON / 5250 stream with the real display-file field names.
However I ran into a problem: I can?t find the record name in the data from
the virtual terminal, and as far as I know the name is not part of the
stream. So I?ll guess I have to skip that approach.

In the end of the day ? I will be very grateful for any plumbing that is
using the virtual terminal.



Best regards


Niels Liisberg
IceBreak Chief SW Architect

System & Metode Technologies
Håndværkersvinget 8, DK-2970 Hørsholm
Phone: +45 70 20 36 10
Fax: +45 70 20 30 11
Direct: +45 45 177 055
Mobile: +45 31 158 861
E-mail: nli@xxxxxxxxxxxxxxxxx
Web: www.system-method.com and www.Icebreak.org




-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On
Behalf Of Nathan Andelin
Sent: 21. december 2008 06:02
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] Pete's web5250 was->Re: Business Developers was ->Re:
IBM Gives RPG Devotees Their Own Café

From: Joe Pluta
We reached our goal (page sizes under 3K)
but the problem was the performance on the client.

Coming back down to earth. My knowledge and proficiency with JavaScript,
CSS, and the DOM are better than average. I've learned a lot over the
years. And I've collected quite a bit of code for handling popups, keyboard
& mouse events, and other cool stuff. But when I think about what it would
take to write something of a 5250 client in JavaScript, I'm daunted by it.

Of course, if Niels wants to do it ;-)

Nathan.