LOF Function
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 Action

 Returns the size of an open file (in bytes), the number of records in an
 ISAM table, or, when used with the  OPEN  COM statement, the number of bytes
 free in the output buffer.


 Syntax



  LOF( filenumber%)


 Remarks


 The argument  filenumber% is the number used in the  OPEN statement to open
 the file, device, or ISAM table.


 Important

  LOF can be used only on disk files, ISAM tables, or COM devices. It cannot
 be used with the BASIC devices SCRN, KYBD, CONS, LPT n, or PIPE.


 See Also

  BOF,  EOF,  LOC,  OPEN (File I-O)


 Example

 See the programming example for the  SEEKGT,  SEEKGE, and  SEEKEQ
 statements, which uses the  LOF function in the context of ISAM.