(form "00048" (size 46  8)
  (help "00048_TIP_0")
  (heading "EXTRACT CONTOURS FROM A DTM")
  (label (position  4  3) (text "Define the DTM to be contoured"))
  (label (position  4  4) (text "Location"))
  (label (position  4  5) (text "ID number"))
  (label (position  4  6) (text "Field to contour"))
  (field "dtmloc" (position 15  4) (display_length 26) (input allowed)
    (null allowed) (max_length 253)
    (file (link "dtmid") (extension "*.dtm"))
    (help "00048_TIP_1"))
  (field "dtmid" (position 15  5) (display_length 16) (input allowed)
    (translate upper) (format real_8) (null disallowed) (max_length 16)
    (help (field "dtmloc")))
  (field "dtmfld" (position 21  6) (display_length  5) (input allowed)
    (translate upper) (format string_field) (null disallowed) (max_length 5)
    (value_in "Z" "D1" "D2" "D3" "D4" "D5" "D6" "D7" "D8" "D9" "D10" 
              "D11" "D12" "D13" "D14" "D15" "D16" "D17" "D18" "D19" "D20" 
              "D21" "D22" "D23" "D24" "D25" "D26" "D27" "D28" "D29" "D30"  
              "D31" "D32" "D33" "D34" "D35" "D36" "D37" "D38" "D39" "D40"  
              "D41" "D42" "D43" "D44" "D45" "D46" "D47" "D48" "D49" "D50"  
              "D51" "D52" "D53" "D54" "D55" "D56" "D57" "D58" "D59" "D60"  
              "D61" "D62" "D63" "D64" "D65" "D66" "D67" "D68" "D69" "D70"  
              "D71" "D72" "D73" "D74" "D75" "D76" "D77" "D78" "D79" "D80"  
              "D81" "D82" "D83" "D84" "D85" "D86" "D87" "D88" "D89" "D90"  
              "D91" "D92" "D93" "D94" "D95" "D96" "D97" "D98" "D99" "D100")
    (help "00048_TIP_2"))
  (default_buttons)
)