Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!reading!rosemary!djd
From: djd@rosemary.cs.reading.ac.uk (David Dawkins)
Newsgroups: comp.lang.postscript
Subject: Re: OpenWindows PageView problems
Keywords: postscript
Message-ID: <1990Nov13.092746.18753@csug.rdg.ac.uk>
Date: 13 Nov 90 09:27:46 GMT
References: <90Nov12.134718est.18498@me.utoronto.ca>
Sender: news@csug.rdg.ac.uk
Reply-To: adp@csug.cs.reading.ac.uk (David Dawkins)
Organization: Comp. Sci. Dept., Reading Univ., UK.
Lines: 41

In article <90Nov12.134718est.18498@me.utoronto.ca> sun@me.utoronto.ca (Andy Sun Anu-guest) writes:
>Does anyone have problems in using pageview (a postscript viewer) from SUN's
>OpenWindows? ...
>..whenever I try to use the PostScript command "setscreen"
>to change the greyscale patterns, pageview will hang. 

I've had the same problem with the "pstack" command - the machine just 
hangs ( an 'input queue lock', I think ). I guess this is just the result
of unfinished software - it _is_ in the Demos !!

The answer is not to use PageView, but to use psh instead. In case you didn't
know, then you can create a PostScript/NeWS file with the top line

#!$OPENWINHOME/bin/psh
  ^^^^^^^^^^^^ ie, insert the home directory of OpenWindows here;
               mine looks like '#!/openwin/bin/psh'
               (Assuming that's where psh actually is ! )
 

Remember to do a 

% chmod u+x <file> 

and then just run it. Of course, this does mean you have to create your own
canvas to work on. ( NeWS 2.1 Programmer's Guide tells all ).


Hope this helps.

David.

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David J Dawkins    | Use the following email address (mine is temp. screwed!)
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Newsgroups: comp.lang.postscript
Subject: Re: OpenWindows PageView problems
References: <90Nov12.134718est.18498@me.utoronto.ca>
Reply-To: djd@rosemary.cs.reading.ac.uk (David Dawkins)