BLINKER DEBUG HANDLE
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  Purpose : Specify output file handle for debugging routines

  Syntax  : BLINKER DEBUG HANDLE <nhandle>

  Default : 1 (screen output)

  Example : BLINKER DEBUG HANDLE 4

  This command is used to set the default output file handle for the
  debugging routines in the Blinker overlay manager. These debugging
  routines are enabled by placing the BLINKER CLIPPER PROFILE ON command
  somewhere in the script file. The debugging routines include a display
  of the status of all the overlay procedures in the overlay pool and a
  trace of procedure calls to reach the current procedure.

  They are detailed in Chapter 7, Blinker Programming Functions.  The
  handle number can be set to either 1 (the default) to send output to the
  screen, 2 to send output to the standard error device or 4 to send
  output to the printer.