Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!usc!apple!anderson
From: anderson@Apple.COM (Clark Anderson)
Newsgroups: comp.sys.mac.programmer
Subject: Re: FSRead() limit on number of bytes
Message-ID: <43882@apple.Apple.COM>
Date: 12 Aug 90 03:48:16 GMT
References: <1335@anaxagoras.ils.nwu.edu>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 27

From: sandell@ils.nwu.edu (Greg Sandell)
Subject: FSRead() limit on number of bytes
>Using FSRead() I find that I can read only a limited number of
>bytes at a time.  In the code below byteCount can be as large
>as 1500 but when I use a value of 2000 the program dies a strange
>death....

I'm not clear on what buffer you're putting the data INTO when
you read it. You need to allocate a buffer of some kind
(array, record (struct), or something), and it needs to be large
enough to hold the data. The last parameter of FSRead is a
pointer (or address) of the beginning of the buffer you want the
data to go into. I've used FSRead for larger block of data than
2000 bytes with no problem. You might check the byteCount parameter
right after you do the read. It will contain the actual number
of bytes that were read. Hope that helps...

                                              --clark

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Clark Anderson                InterNet:  anderson@apple.com
PCB Software Tools            AppleLink: C.ANDERSON
Apple Computer, Inc           BellNet:   408-974-4593

"I speak only for myself, much to my employer's relief..."
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