BLIDEMDTE / BLIDEMDTEBAS
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  Function : Demonstration date

  Syntax   : cValue = BLIDEMDTE()

  Return   : Demonstration date as a string

  This function returns the demonstration date limit of the program if it
  was set at link time, and returns it as a string in the form YYYYMMDD.

  A null string will be returned if the demonstration date limit has not
  been set.

  Example  :
  *  Display the expiration date if there is one
  *
  TMPDEMDTE = BLIDEMDTE()    && Get the date limit
  IF LEN(TMPDEMDTE) > 0
      ? "The expiration date of this program is "
      ?? TMPDEMDTE
  ENDIF