(form "00258" (size 41  5)
(help "00258_TIP_0")
  (heading "HEIGHT OF PRISM")
  (label (position  2  3) (text "Prism height"))
  (field "ht" (position 16  3) (display_length 12) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 12))
  (default_buttons)
)