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 setalternate()      Set the alternate flag
------------------------------------------------------------------------------
 Declaration
   getset.hdr

 Syntax
   proc setalternate extern
   param value logical lOn

 Arguments
   lOn is the new setting for the flag.

 Return
   None.

 Description
   The setalternate() function sets the alternate flag according to the
   passed parameter.

 Example
   #define EXAMPLE_FILE
   #include example.hdr

   proc Test_setalternate
   ? getalternate()         // print .f.
   setalternate( .t. )
   ? getalternate()         // print .t.
   setalternate( .f. )
   ? getalternate()         // print .f.
   endproc

   proc main
   Test_setalternate()
   endproc