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dfFTop()
Performs a GoTop on a text file
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Syntax:

     dfFTop() --> NIL

Parameters:

     NONE

Returns:

     NIL

Description:

     Goes to the top of a file opened by dfFOpen() or selected by
     dfFSelect().

Example:

     LOCAL cLine := ""
     dfFOpen( "Menu.log" )
     IF dfFLocate("[Error]")   // Errors found
        ? "Errori"             // Displays message
        QUIT                   // and quits
     END
     dfFTop()                  // Go to the top
     WHILE !dfFEof()           // While NOT Eof
        cLine := dfFRead()     // Read its lines
        // Elaborazioni
        dfFSkip()              // Skip
     END

See also:

     dfFEof(), dfFSkip()