Not sure if I am on the same page as you John, are you still working this through only just saw it?
One OS safe method - if you are using fixed record sizes, then instead of removing a record (and repacking the file in situ) re-enter/alter the record with a key field saying "deleted" or something. Then periodically when there is no file access going on run a maintanence routine to rewrite the file to a copy not writing the deleted records accross, then delete/backup original and rename your newly written maintenece file as the original. Paul 2009/8/26 Peter Hyde <pe...@webcentre.co.nz> > John asked: > > > Is there a simple way to alter the size of an existing file - > > particularly to decrease the size? > > Unless TFileStream has changed since I last looked in detail, you > won't find it easy. > > I know that in similar cases I ended up adopting the "write to temp > file/rename-after" approach; I don't know if that would suit your > conditions adequately. > > > cheers, > peter > > =========================================== > Peter Hyde, Development Director > * http://TurboNote.com <http://turbonote.com/> -- top-rated onscreen > sticky notes > * Web development and automation: http://webcentre.co.nz > > > > _______________________________________________ > NZ Borland Developers Group - Delphi mailing list > Post: delphi@delphi.org.nz > Admin: http://delphi.org.nz/mailman/listinfo/delphi > Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: > unsubscribe >
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