Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!husc6!psuvax1!vu-vlsi!swatsun!jackiw
From: jackiw@cs.swarthmore.edu (Nick Jackiw)
Newsgroups: comp.sys.mac.programmer
Subject: Re: touching resource attributes w/o modifying file
Keywords: mac resource manager setresattrs getresattrs
Message-ID: <2818@carthage.cs.swarthmore.edu>
Date: 5 May 89 14:32:06 GMT
References: <517@biar.UUCP>
Reply-To: jackiw@carthage.UUCP (Nick Jackiw)
Organization: Visual Geometry Project, Swarthmore College, PA
Lines: 35

In article <517@biar.UUCP> trebor@biar.UUCP (Robert J Woodhead) writes:
> I have a couple of sections of code that occasionally need to temporarily
> change resource attributes; in particular, resSysHeap.  
> getresattrs / setresattrs / my code / setresattrs(original) works fine,
> but it has the side effect that it changes the file's modification date

Hmmm.. are you sure?

IM I-113:

	"* To change the information stored for a resource in the 
	resource map, call SetResInfo or SetResAttrs. If you want the
	change to be written to the resource file, call Changed Resource."

> which I don't really want to do; I want to be as non-invasive as possible.
> Therefore, any suggestions on how I can load to the application heap w/o
> causing a modification in the file?

Might you be calling ChangedResource on your resource at some other point
or for some other reason? Just a guess (but it does seem like your exper-
ience, as stated, contradicts the Gospel). If not--i. e. if Resource
Manager is shafting you--you could consider just patching NewHandle, which
GetResource is going to have to call to allocate the resource in the
system heap, to mask off the SYSHEAP bit.  If so, be sure to localize
(install + deinstall) your patch gravely, because of all the unpredictable
times the System might want a bite of the Sys Heap for its own reasons.

> Robert J Woodhead, Biar Games, Inc.  ...!uunet!biar!trebor | trebor@biar.UUCP


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