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From: @gdt.bath.ac.uk
Newsgroups: comp.sys.apollo
Subject: Re: bitmap and image conversion programs
Keywords: bitmap, image, graphics
Message-ID: <1990Apr8.161841.14435@bath.ac.uk>
Date: 8 Apr 90 16:18:41 GMT
Sender: ccsmm@bath.ac.uk (Martin Maclaren)
Organization: Bath University Computing Services, UK
Lines: 27


The graphics programs made available by ROQUE OLIVEIRA
(oliveria@caen.engin.umich.edu) at freebie.engin.umich.edu
contain gpr calls of the following type...

       status_$t   status;

       gpr_$***(...,...,&status)

Why is status passed as &status?

I'm using SR9.7 (still, maybe this summer we'll "upgrade" :-)),
Apollo CC, Rev 5.50

All the domain_examples I've seen, pass status as plain status (for example) -
I know it seems right passing by address, but it doesn't work for me.

Could someone explain?

[ The progs. work if I take all the &'s out, and dereference character arrays,
  and put in a #if SR9 for the SR9 /sys/ins #include files. ]

[ I've got the recent bgc.pas converted to bgc.c if anyone is interested ]


Ta,
Martin