SET(PROMPT_AREA)

  Determines the location, size, and video attributes of the prompt area.
  This is the area in which the prompts generated by READ_LINE are
  displayed.

  Syntax

     SET (PROMPT_AREA, integer1, integer2, {NONE | BOLD | BLINK
         | REVERSE | UNDERLINE})

  Parameters

     integer1   The screen line number at which the prompt area starts.

     integer2   The number of screen lines in the prompt area.

     NONE       No video attributes applied.

     BOLD       Characters in the prompt area are bolded.

     BLINK      Characters in the prompt area blink.

     REVERSE    Characters in the prompt area are in reverse video.

     UNDERLINE  Characters in the prompt area are underlined.

  Example

     SET (PROMPT_AREA, 24, 1, REVERSE);

  Sets the prompt area at screen line 24.  It is one line and displayed in
  reverse video.