SET(RESIZE_ACTION)

  Specifies code to execute when a DECwindows resize event occurrs.  Setting
  a resize action routine overrides any previous resize action routine.

  Syntax

     SET (RESIZE_ACTION [, {program_source | NONE}])

  Parameters

     program_source       A buffer, learn sequence, program, range, or
                          string specifying the resize action routine that
                          TPU should execute whenever it receives a
                          resize event.

     NONE                 A keyword directing TPU to delete the current
                          resize action routine.  If you specify this
                          keyword or do not specify a parameter, your
                          application is not informed when TPU receives a
                          resize event from DECwindows.