Douglas Stemen wrote:
> 

> My folder ID is from FILES$. I have read Appendix H. I also understand that
> OS X uses a different data block format for opening/creating files than that
> contained in the pre-OS X parameterblock. I am starting to read IM to learn
> more about the new toolbox routines, but was hoping someone had experience
> with this to reduce my time.
> 
> I still don't find a clear explanation for specifically what FN
> FBWDToPBWD(parameterblock) does. It is in the example programs but as far as
> I can see not documented in the manuals.
> 
> The following toolbox access routines allow the user to directly access data
> files. They work fine in R6, except when compiled under carbon they create a
> "function must be defined before using" and other compile errors.
> 
> FN OPEN(PBlk&)
> FN CREATE(PBlk&)
> FN FLUSHVOL(PBlk&)
> 
> In OS X what is the correct syntax for these routines, if any?
> 

Doug,

I have no idea if that will work but you could try the following
calls that are available in Carbon:

ioErr% = FN HOpen(PBlk&)
ioErr% = FN HCreate(PBlk&)
ioErr% = FN FlushFile(PBlk&)

You probably will have to use FBWDToPBWD(PBlk&) before calling the
functions above.
-- 
Cheers,

Alain
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