This might also be of some use: http://www.tommysprinkle.com/mvs/P3270/start.htm - 3270 Data Stream Programming Robert
On Fri, 16 Aug 2024 at 13:14, Lennie Bradshaw <[email protected]> wrote: > Seymour, > That is interesting. I was unaware the protocol had been externalised from > IBM. I guess this absolves them of the responsibility of providing > documentation as well. > > Phil asked what was the original posters requirement. Well years ago (in > the late 1970s) I wrote some program for TSO using 3270 protocols. This was > in the days before ISPF and before the extended attribute support was > available. I have been involved in such programs rarely since then, but > have maintained some knowledge of the protocol. I have somewhere a "Green > Book" which has all the tables and so on, but I have mislaid it. I had to > make some changes to a VTAM USS table recently and was looking for the > specifications for the control strings I could use. As I couldn't find my > Green Book, I looked online and could not see where IBM had this documented. > Hence my questions. > > The website that Sebastian found was really useful. > > Many thanks to all who contributed. I will try and butt out now. > Lennie > > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf > Of Seymour J Metz > Sent: 16 August 2024 12:56 > To: [email protected] > Subject: Re: 3270 programming > > I would start with RFC 2355, TN3270 Enhancements < > https://datatracker.ietf.org/doc/rfc2355/> > > -- Robert AH Prins robert(a)prino(d)org The hitchhiking grandfather <https://prino.neocities.org/index.html> Some REXX code for use on z/OS <https://prino.neocities.org/zOS/zOS-Tools.html> ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
