When running ISPF in GUI mode, users connected by TCP/IP on a z/OS® UNIX system, and all users connected by APPC, have the option to display all non-fullscreen TSO data in an ISPF/TSO GUI window. This window is scrollable and it contains an input field for entering required user responses. The data in the window can be selected and copied to a file of your choice. This enables you to minimize the emulator window from which you logged on without missing any messages that might appear in the emulator window.

To use the TSO line mode support for ISPF GUI, execute these steps:

• The Language Environment® run-time library data sets, SCEERUN and SCEERUN2, must be in LPA or Linklist and must be APF authorized.
• These ISPF modules and aliases must be in LPA: ISPDTSSI, ISPDTWIN, ISPDTTSK, ISPDTINI, IKJDTINI, ISPDTTER, IKJDTTER, ISPDTPUT, IKJDTPUT, ISPDTGET, IKJDTGET, ISPDTPC, and ISPQGUI.
• The ISPF subsystem initialization routine, ISPDTSSI, must be invoked at system IPL. To do this, add this to your IEFSSNxx member in SYS1.PARMLIB.

  SUBSYS SUBNAME(ISPF) INITRTN(ISPDTSSI)

  One of these messages will appear on your console indicating whether the routine was successfully invoked:

  ISPDT001 ISPF Subsystem Initialization: Completed successfully
  ISPDT002 ISPF Subsystem Initialization: Error creating PC number - is
           ISPDTPC in LPA
  ISPDT003 Subsystem name in IEFSSNxx is not ISPF

• These are required for TCP/IP communications:
  • z/OS Communications Server: IP
  • user ID with an OMVS segment defined
  • default group with an OMVS segment defined
  • z/OS UNIX home directory
  See Tailoring ISPF defaults for more information.
• Your logon procedure must invoke the alternate entry point of IKJEFT1I. The EXEC card must contain ’PGM=IKJEFT1I’.