[comp.lang.postscript] Sun NeWS - command needed to free space allocated by the package.

robbin@scotty.UUCP (J. Wally Reid) (06/14/88)

    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.