ViewPoint Manual

Installation, Configuration, and Startup
ViewPoint Manual—426801-001
7-13
Exiting From ViewPoint
If ViewPoint is run without access to TACL (see “Running ViewPoint without TACL”
later in this section), then users do not have access to the background processes available
through Define Process commands.
Exiting From ViewPoint
If the ViewPoint application has access to TACL, the operator can exit ViewPoint from
any of the base-level screens by pressing the exit key, SF16. The previously saved
TACL function-key definitions are then restored, the link from TACL to ViewPoint is
broken, and the TACL conversational screen is restored. Any defined processes remain
defined.
Running ViewPoint Without TACL
As delivered, ViewPoint allows function-key access to TACL from the terminal. When
ViewPoint is installed, however, the application manager can decide to run ViewPoint
from a terminal without using TACL. This allows ViewPoint to be called from another
Pathway application, makes it possible to provide a security front end to ViewPoint, and
allows ViewPoint to run on dedicated terminals.
There are two ways to run the ViewPoint application without access to TACL:
•
ViewPoint can be called from an existing Pathway application.
•
ViewPoint can be run on a dedicated terminal.
The method for calling ViewPoint from another Pathway application is for the Pathway
application to issue a call to ZVPT-MAIN; the call to ZVPT-MAIN starts the ViewPoint
application.
The method for starting ViewPoint at a dedicated terminal depends on whether there is a
TACL running at that terminal. If there is a TACL running, you can enter the following
series of commands:
PATHCOM pathmon-name; RUN ZVIEWPOINT; EXIT
The PATHMON name must identify an existing ViewPoint PATHMON; by default, the
ViewPoint PATHMON name is $ZVPT. These PATHCOM commands start ViewPoint
at the terminal where the commands are entered.
If there is no TACL running on the terminal where you want ViewPoint to run, you can
define ZVPT-MAIN as the initial program and define and start the ViewPoint terminal
from a terminal where TACL is running (usually the operator console). For each
Note. When you press SF16, ViewPoint continues to run, so you can log back into ViewPoint
using the ViewPoint [pathmon-name] command. (See the subsection earlier in this section,
“Running ViewPoint with TACL.”)
If ViewPoint is running on a dedicated terminal (without access to TACL), pressing SF16 stops
the ViewPoint application. If ViewPoint was called from another Pathway application, SF16
returns to the calling application.