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                             DiskFree function

  DECLARATION:  DiskFree(Drive : Word);

      PURPOSE:  Returns the number of free bytes on a disk

         UNIT:  DOS

  RESULT TYPE:  LongInt

      REMARKS:  A Drive of 0 indicates the default drive; 1 indicates
                Drive A; 2 indicates Drive B; etc.

                NOTE:  DiskFree returns -1 if the drive number is invalid
See Also: DiskSize GetDir
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