Library /sys$common/syshlp/basichelp.hlb Graphics, SET Statements, WINDOW, Syntax  *Conan The Librarian (sorry for the slow response - running on an old VAX)

      SET WINDOW [ , TRAN int-exp : ] exp-list

  Exp-list must be four  numeric  expressions  for  the  left,  right,
  bottom and top boundaries.