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From: thomson@cs.utah.edu (Rich Thomson)
Newsgroups: comp.graphics
Subject: Re: SunPHIGS inquire wks state value
Message-ID: <1990Jul10.172335.3619@hellgate.utah.edu>
Date: 10 Jul 90 23:23:35 GMT
References: <7209@amelia.nas.nasa.gov>
Distribution: usa
Lines: 34
X-Local-Date: 10 Jul 90 16:23:35 PDT

In article <7209@amelia.nas.nasa.gov> mckie@amelia.nas.nasa.gov
    (William McKie) writes:
>We recently had use for knowing whether a particular PHIGS
>workstation was currently open or not, and we located the
>INQUIRE WORKSTATION STATE VALUE routine in the SunPHIGS 1.1
>manual (p 675).

[The page numbers I give reference the standard ISO/IEC 9592-1:1988(E)]

PHIGS has several operating states.  These are:

    PHIGS:		Open/Closed
    Workstatiob:	Open/Closed
    Archive File:	Open/Closed
    Structure:		Open/Closed

The INQUIRE WORKSTATION STATE VALUE tells you whether or not the
application currently has at least one workstation open (pg. 107).  Each
workstation has in its state list whether or not it is open or closed (pg.
68).  What you probably want is a list of all open workstations which you
can then search to find the workstation you're looking for:

(pg. 235)
INQUIRE SET OF OPEN WORKSTATIONS			(PHOP, *, *, *)
Parameters:
Out	Error Indicator			Integer
Out	Set of Open Workstations	List(Workstation Identifiers)

This should return to you a list of the ID's of the workstations that are
open by this application.

						-- Rich
Rich Thomson	thomson@cs.utah.edu  {bellcore,hplabs,uunet}!utah-cs!thomson
``If everybody is thinking the same thing, is anybody thinking?'' --Bob Johnson