Author: Matt Deatherage
Year: 1989
... discusses the resource fork format of GS/OS extended files.
Apple II
Technical Notes
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Developer Technical Support
GS/OS
#5: Resource Fork Formats
Revised by: Matt Deatherage July 1989
Written by: Matt Deatherage January 1989
This Technical Note discusses the resource fork format of GS/OS extended
files.
Changes since January 1989: Documented the location of resource fork
format information.
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Due to an omission in GS/OS Reference, Volume 1, some developers are not aware
that the format of the resource fork of any file is reserved by Apple
Computer, Inc. With the release of System Software 5.0 for the Apple IIGS, a
Resource Manager is available to manipulate discrete chunks of data stored in
the resource forks of files. To prevent corruption of media, information
should only be stored in any resource fork in this format.
The Resource Manager should always be used to manipulate the data in resource
forks. Some utilities may find this impossible and will require direct
manipulation of resources without the Resource Manager. Information on the
format of the resource forks is included with the Resource Manager
documentation in the System Software 5.0 documentation.
Further Reference
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o GS/OS Reference, Volume 1
o System Software 5.0 documentation (APDA)