Shibu I am repeating the references John McKown gave you with titles:
"3270 Data Stream Programming" http://www.tommysprinkle.com/mvs/P3270/start.htm This looks like a handy - second-hand - description and even includes how to communicate using macros for use with TSO as your "application-enabling environment". The first-hand descriptions are in the "3174 Establishment Controller Functional Description" manual I mentioned before and the next manual John gave you: 3270 Information Display System Data Stream Programmer's Reference http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/CN7P4000/ ISPF: Interactive System Productivity Facility (ISPF) Dialog Developer's Guide and Reference http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ISPZDG90/ CICS BMS: CICS Transaction Server for z/OS Application Programming Guide Chapter 6, "6.0 Basic Mapping Support (BMS)" http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DFHP3C00/6.0 Section 4.4, "The 3270 family of terminals" http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DFHP3C00/4.4 Note that the URL John gave is for CICS Transaction Server V3R2 while the latest is V4R2 - AFAIK - but I don't expect that will be important. Chris Mason ----- Original Message ----- From: "John McKown" <[email protected]> To: <[email protected]> Sent: Monday, December 26, 2011 10:41 PM Subject: Re: Display related operations in assembler.
... For "raw" understanding of the 3270 data stream, you might want to start here: http://www.tommysprinkle.com/mvs/P3270/start.htm IBM Reference manual here: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/CN7P4000/CCONTENTS?DT=19920626112004 The basic REXX language itself does not have any 3270 display capability. If in TSO, use ISPF Display Manager. If in CICS, use BMS. I don't personally have any knowledge about other ways to do 3270 display in REXX, though there likely are. ISPF: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ISPZDG90/CCONTENTS CICS BMS: http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DFHP3C00/6.0 http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DFHP3C00/4.4 -- John McKown Maranatha! <><
