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Query Station State Command for IBM 5250 Displays

IP.com Disclosure Number: IPCOM000120239D
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 72K

Publishing Venue

IBM

Related People

Eagen, ST: AUTHOR [+2]

Abstract

Some application programs require that specific customization states (e.g., keystroke buffering control) be set to specific values. The application program must be able to change these customization states and restore them to their original state when the program terminates. This article describes a method by which application programs can save user customization states and restore them at a later time.

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Query Station State Command for IBM 5250 Displays

      Some application programs require that specific
customization states (e.g., keystroke buffering control) be set to
specific values.  The application program must be able to change
these customization states and restore them to their original state
when the program terminates.  This article describes a method by
which application programs can save user customization states and
restore them at a later time.

      Display data stream can be extended to support the Query
Station State structured field command and associated response.  The
Query Station State structured field command must follow a Write
Structured Field ('04F3'X) command.  The Query Station State command
can be sent to any display that is powered up and varied on, and is
treated like an immediate Read command by the work station controller
(WSC). It must be the last command in the data stream chain in which
it is sent and the session must be given Change Direction.

      The Query Station State command is valid in data processing or
word processing mode.  (See Table 1.)
QUERY STATION STATE COMMAND MAJOR STRUCTURE:

      The WSC will return a Query Station State Response structured
field to the host in response to the Query Station State command.

      The Query Station State response (see Table 2) is in the same
format as the WSC Customization command.  Thus, the response can be
used to restore any customization parameters that...