BLINKER DEMONSTRATION CALLS
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  Purpose : Specify number of calls for demonstration version

  Syntax  : BLINKER DEMONSTRATION CALLS <nuLimit>

  Example :   # Set a limit of 100 procedure calls

              BLINKER DEMONSTRATION CALLS 100


  This command is used to set a limit on the number of calls to overlaid
  procedures which may be made before the program will end with the
  "demonstration procedure limit exceeded" message. It may be set to any
  number from 1 to 65535.

  This can be used to create a demonstration version of the program
  without having to modify the source code. When the calls limit is
  reached the error handling procedure BLERRPRG is called with error
  number 1207 indicating that the demonstration call limit has been
  exceeded. The source for the error handler is provided should you want
  to modify the text of the termination message.

  Note: the demonstration restrictions are only checked when overlays are
  loaded, so to use them please ensure that at least one function or
  procedure which is called regularly is overlaid.

  The function BLIDEMCAL() allows the limit to be extended from within the
  program. Please see the appropriate section in Chapter 7 for more
  details.