Browse Prior Art Database

Error Line Placement in a Windowed 5250 Emulator

IP.com Disclosure Number: IPCOM000108823D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-23
Document File: 2 page(s) / 80K

Publishing Venue

IBM

Related People

Erickson, C: AUTHOR

Abstract

This disclosure applies to a 5250 emulator in an OS/2* Presentation Manager* window. The 5250 emulator is part of OS/2 Extended Services 2.0 Communications Manager. DETAILED PROBLEM DESCRIPTION

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Error Line Placement in a Windowed 5250 Emulator

       This disclosure applies to a 5250 emulator in an OS/2*
Presentation Manager* window.  The 5250 emulator is part of OS/2
Extended Services 2.0 Communications Manager.
DETAILED PROBLEM DESCRIPTION

      The AS/400 system has the ability to send error messages to an
attached display  station via the Write Error command.  The message
may appear on any line of the display, although by default it is the
last line of the display.

      In current 5250 emulation products the entire host presentation
space is visible to the user (i.e., they can see the entire screen
at a glance).  When an error message is sent by the host via the
Write Error command, regardless of which line it has been specified
for, it is always visible because all lines of the display are
visible.

      In a windowed environment like the OS/2 Presentation Manager,
it is possible that the entire host presentation space will not be
visible due to the size of the window in which the host presentation
space is being displayed. Therefore, an error message specified for a
line that is not in the visible region of the host presentation space
will not be seen by the  user.  The Write Error command causes the
keyboard to be locked, so if the Write Error text is not visible, the
user is likely to be confused about their inability to continue
typing.
BACKGROUND

      The external interface for the 5250 emulation support within
the OS/2 Extended Services 2.0 Communications Manager is provided via
the OS/2 Presentation Manager.  See the figure.  The host display is
emulated via two windows: one for the host data to be...