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 EOF(filenumber%)
 
 Usage Notes
   ■ Use the EOF function with sequential files to test for the end of a
     file. Otherwise, Visual Basic generates the error message, "Input past
     end."
 
   ■ When used with random-access or binary files, EOF returns true if the
     last executed GET statement was unable to read an entire record.
 
   ■ When you use EOF with a communications device, the definition of the
     end-of-file condition depends on the mode (ASCII or binary) in which
     you opened the device:
 
         Mode    Description
         ══════  ═══════════════════════════════════════════════════════════
         ASCII   EOF is false until you receive Ctrl+Z, after which it
                 remains true until you close the device
         Binary  EOF is true when the input queue is empty (LOC(n)=0);
                 it becomes false when the input queue is not empty
 
   ■ The EOF function returns true (nonzero) if the end of a non-ISAM file
     has been reached or if the current position in an ISAM table is at the
     end of the table. The end of an ISAM table is the position immediately
     following the last record according to the current index.
 
   ■ EOF cannot be used with the Visual Basic devices SCRN, KYBD, CONS, LPTn,
     or PIPE.