Path: utzoo!attcan!uunet!lll-winken!csd4.milw.wisc.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ucdavis!iris!lim
From: lim@iris.ucdavis.edu (Lloyd Lim)
Newsgroups: comp.sys.mac.programmer
Subject: Re: HELP (easy -)) - Open & Close Picture
Message-ID: <3826@ucdavis.ucdavis.edu>
Date: 19 Mar 89 07:24:05 GMT
References: <635@uvicctr.UUCP> <9461@polyslo.CalPoly.EDU>
Sender: uucp@ucdavis.ucdavis.edu
Reply-To: lim@iris.ucdavis.edu (Lloyd Lim)
Distribution: na
Organization: U.C. Davis - Department of Electrical Engineering and Computer Science
Lines: 23

In article <9461@polyslo.CalPoly.EDU> dorourke@polyslo.CalPoly.EDU (David M. O'Rourke) writes:
>In article <635@uvicctr.UUCP> hedstrom@uvicctr.UUCP (Brad Hedstrom) writes:
>>	picH = OpenPicture(&picSize);	/* start "recording" picture */
>
>  I don't have IM right in front of me, but I believe you mean
>
>  picH = OpenPicture(picSize); 
>
>I don't think the picsize rect parameter
>is a var, I think OpenPicture wants the parameter to be call by value,
>but I could be wrong since I'm going from memory, any comments from
>anyone who's not too lazy to acutally look this thing up???

&picSize was correct (for LSC at least).  OpenPicture does take a value
parameter but remember this is C!  All variables greater than 4 bytes in size
are passed by pointers.  I don't use MPW so I can't vouch for that but I see
no reason why it would be different for rects.  I know - you just forgot -
you didn't really mean to say that in your posting.  :-)

+++
Lloyd Lim     Internet: lim@iris.ucdavis.edu
              Compuserve: 72647,660
              US Mail: 146 Lysle Leach Hall, U.C. Davis, Davis, CA 95616