Path: utzoo!dptcdc!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!wam.UMD.EDU!russotto
From: russotto@wam.UMD.EDU
Newsgroups: comp.sys.mac.programmer
Subject: Re: CopyBits in MPW C 3.0
Message-ID: <8904171804.AA00203@vs03csc.UMD.EDU>
Date: 17 Apr 89 18:04:36 GMT
References: <225@uw-apl.UUCP> <6988@hoptoad.uucp>
Distribution: na
Organization: University of Maryland, College Park
Lines: 25

In article <6988@hoptoad.uucp> tim@hoptoad.UUCP (Tim Maroney) writes:
>
>Try "CopyBits(*(BitMap **)mypixhandle, ...);"  Incidentally, you
>shouldn't be passing a pointer to something stored in a relocatable
>handle to CopyBits or any other routine listed as allocating or
>moving memory.  Declare a Rect variable and assign the bounds
>rectangle to that, then pass a pointer to the variable instead.
>-- 
>Tim Maroney, Consultant, Eclectic Software, sun!hoptoad!tim

I've never had any problem passing dereferenced handles to CopyBits--
I don't believe it is a routine that moves or purges memory (I believe
it's temp buffers are on the stack)  Actually, this almost has to be
for VBL tasks to be able to draw...


-- 
	Matthew T. Russotto
	russotto@wam.umd.edu
	<insert witty expression here>

-- 
	Matthew T. Russotto
	russotto@wam.umd.edu
	<insert witty expression here>