format  Sint32 GFS_Fread (GfsHngfs, Sint32 nsct, void * buf, Sint32 bsize)
 Input  gfs: File handle
  nsct: Number of sectors to read
:  bsize: Maximum number of data to be read (unit: bytes)
 Output  buf: Reading area
 Function value  Number of bytes actually read
 Function  Specify the opened file handle and read the file data
 Do this .
  Reads nsct sector data from the access pointer. Of the read data,
:  Up to bsize bytes of data are written to buf. The access pointer is nsct
 Go to the sector ahead  sector.
 Remarks  The buf address boundary is limited depending on the transfer mode.
: -GFS_TMODE_SCU: No limit
. -Other than that: Place on 4-byte boundary
  Even if the access pointer is outside the range of the file specified by the file handle,
  Reads as part of the file. I'll also straddle the end of the file
  When the number of read sectors is specified, the specified number of sectors is read.
 Do .
:  The read parameter is the default value regardless of the value specified in GFS_SetReadPara.
  is used. 

  format  Sint32 GFS_NwFread (GfsHngfs, Sint32 nsct, void * buf, Sint32 bsize)
 Input  gfs: File handle
  nsct: Number of sectors to read
:  bsize: Size of read area (unit: number of bytes)
 Output  buf: Reading area
 Function value  Error code.
 Function  A data read request is issued to the server function.
  When the requested access operation is completed, the access pointer advances by nsct sector.
. 
 Remarks  Buf address boundaries require the same caution as GFS_Fread remarks.
  Even if the access pointer is outside the range of the file specified by the file handle,
  Reads as part of the file. Also straddle the end of the file
Even when   is specified, the specified number of sectors is read.
 There is .