Library /sys$common/syshlp/decw$printwgt.hlb Overview, print_options, print_options_cancel  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The Cancel button allows you to cancel changes you have
  made to the Print Options dialog box.

  Any fields you changed in the Print Options box will be
  reset to the values set before you made changes.

  Note that this does not cancel the print operation;
  only the changes made to the Print Options box are
  cancelled.