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Article #7230

Sun NeWS - command needed to free space allocated by the package.

#7230
From: J. Wally Reid
Date: Mon, 13 Jun 1988 18:48
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    Help!  I'm using the "readcanvas" and "imagecanvas" commands of the
    Sun NeWS package (post-script based) to display a bit-mapped image
    on a "canvas".  Each time I do this, lots of space (up to 2 MB) gets
    allocated.  The space is allocated to save a copy of the image for
    refresh, but it does not get ("automagically") freed until the program
    exits.  I have been told by people at Sun that there exists a program
    command to free this space but no one can tell me what it is, nor can
    I find it in the manual.  Can anyone help??

    Thanks, Robbin.

    P.S.  "makecanvasnonretained" sort of solves the problem by not
	  allocating the space to save a copy of the image, but if
	  another window gets placed over the image, the original can't
	  be refreshed and thus is lost.

    e-mail may be addressed to ..!rochester!kodak!fedsys!ski!robbin or
    I'll be watching this space for an answer.  Thanks again for any
    help you can offer.  R.
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Message-ID: <166@scotty.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!rutgers!rochester!kodak!scotty!robbin
References: <24996@bbn.COM> <6408@ig.ig.com> <25038@bbn.COM> <1614@osiris.UUCP> <25125@bbn.COM> <55@jetson.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!rutgers!rochester!kodak!scotty!robbin
From: robbin@scotty.UUCP (J. Wally Reid)
Newsgroups: comp.lang.postscript
Subject: Sun NeWS - command needed to free space allocated by the package.
Keywords: canvas, Sun, NeWS
Message-ID: <166@scotty.UUCP>
Date: 13 Jun 88 18:48:24 GMT
References: <24996@bbn.COM> <6408@ig.ig.com> <25038@bbn.COM> <1614@osiris.UUCP> <25125@bbn.COM> <55@jetson.UUCP>
Reply-To: robbin@ski.UUCP (Robbin Huls)
Organization: Systems Integration, Eastman Kodak Co, Rochester, NY
Lines: 20