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ff call of pr_load (sunview): what for file parameter

>From krishna.zir.ethz.ch!mpeter@zir.ethz.ch Mon Sep  3 13:53:42 1990 remote from ethz

For reading sun rasterfiles, i would like to use sunview's pixrect
functions. after defining these functions as foreign functions in
acl, i don't know now how to specify the I/O parameters.

in C i write: FILE *input; pr_load(input,NULL)

How do i specify the file parameter from a lisp program ?
Can the file be opened by lisp ?
Does somewhere already exist a complete interface from acl to pixrect ?

Thanks for any help

martin peter
mpeter@ethz.uucp, mpeter@krishna.zir.ethz.ch
Swiss Fed. Inst. Of Tech.