Heather-

I thought of a question regarding this procedure. Rather than to replace
the TBAlias of SetEOF in the toolbox standard.incl file, could I not
leave the existing SetEOF alias where it is, and then make a new alias
called "HighLevelSetEOF" or something and thereby eliminate the errors
from all the times where the runtime calls SetEOF?

Thanks,

Paul

Heather Donahue wrote:
> 
> At 3:38 PM -0500 on 12/28/00, Paul Bruneau wrote:
> 
> >        FUNCTION SetEOF (refNum: Integer; logEOF: LongInt): OSErr;
> 
> >But the FB help system says this:
> >
> >osErr% = FN SETEOF (pbPtr&)
> >
> >I would greatly prefer to do it like Inside Mac says, just by passing
> >the file reference number and a long integer to specify the EOF, rather
> >than dealing with a nasty parameter block as FB appears to want me to
> >do. Does anyone know how to do this correctly?
> 
> The FB SetEOF is a TBAlias for PBSetEOFSync which is a low-level
> function.  The one you want is a high-level function.
> 
> If you really want to use the high-level one, you'll have to do what I do.
> 
> Create a copy of the ToolBox Standard.Incl file and place it with
> your project file.  FB will then use it before the other copy.  Then
> find and comment out the TBAlias SetEOF in the ToolBox file.  Then
> add the Toolbox function for SetEOF to the Standard.Incl file.
> 
> Now the runtime will give you plenty of errors for runtime functions
> that use SetEOF where they should use PBSetEOFSync.  You'll have to
> replace all the SetEOF references in the runtime files to
> PBSetEOFSync.  You'll probably want to make copies of all these files
> as well.
> 
> Now you see why I don't like TBAlias.  I find it's always getting in
> my way and very hard to work around.  Then I have to include my
> header files with anything I distribute.
> 
> A few problems though should be mentioned.  The high-level Toolbox
> functions don't have any inline 68k so they aren't backward
> compatible.  They may also not be available to earlier versions of
> MacOS.  They can't be called at interrupt time or in a deferred task.
> You'll want PBSetEOFAsync for that.  ( That last one was discussed on
> comp.sys.mac.programmer.help just recently )
> 
> Heather
> 
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