XPfcreateNew()
  Create a New file, handy for temporary files
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   Function:   XPfcreateNew()

               XPfcreateNew() creates a file just like fcreate(), the syntax
               is also the same as Clipper's fcreate(), except that
               XPfcreateNew() will not create the file is the file already
               exists, it then returns error code 80 in XPferror().
               This makes an algorithm to create temporary/unique files with
               control over the name very easy.

               Note that the XPtempName() is an easier to use function,
               written in Clipper which handles all the hustle to create
               a temporary file. This function is only  provided so you can
               have total control if you want so.

   Syntax:     XPfcreateNew(cFilename[,nAttr]) --> nHandle

   Arguments:  cFileName is the file to create (new), nAttr is the
               attribute of the file to create and defaults to 0.

   Returns:    The handle of the file created, or -1, in that case,
               XPferror() contains the DOS Error code.

   Usage:      /* Create an Unique file, named TEMPNAME */
               XPfcreateNew('TEMPNAME')
               if XPferror() = 80
                    ? "File already exists!"
               end
               See XPtempName() (in another section) for a ready-to-use
               function in your Applications.