menu * { 
  Calculator 
  ..Version V.12: dialog -m Calc Calc 
} 
dialog Calc { 
  title "Calculator Dialog" 
  size -1 -1 171 94 
  option dbu 
  box "Calculator", 3, 100 2 65 87 
  edit "", 4, 103 10 59 10, read autohs 
  button "+", 5, 103 74 14 12 
  button "-", 6, 118 74 14 12 
  button "/", 7, 133 74 14 12 
  button "x", 8, 148 74 14 12 
  button "6", 9, 103 48 14 12 
  button "7", 10, 118 48 14 12 
  button "8", 11, 133 48 14 12 
  button "9", 12, 148 48 14 12 
  button "2", 13, 103 35 14 12 
  button "3", 14, 118 35 14 12 
  button "4", 15, 133 35 14 12 
  button "5", 16, 148 35 14 12 
  button "0", 17, 103 22 14 12 
  button "1", 18, 118 22 14 12 
  button "=", 19, 103 61 14 12 
  button "CE", 20, 118 61 14 12 
  edit "", 21, 132 61 15 12 
  edit "calculator", 22, 132 22 30 12, read 
  box "Last Calculations", 23, 2 1 96 87 
  list 24, 4 7 91 77, size 
  button "ADD", 30, 148 61 14 12 
} 
on *:DIALOG:Calc:sclick:*: { 
  if ($regex($did,/^(5|6|7|8|9|10|11|12|13|14|15|16|17|18|20)/Si)) { did -a Calc 4 $did($did) } 
  if ($regex($did,/^30/Si)) { did -a Calc 4 $did(21) } 
  if ($regex($did,/^20/Si)) { did -r Calc 4 } 
  if ($regex($did,/^19/Si)) { did -a Calc 24 $did(4) = $calc($did(4)) | did -ra Calc 4 $calc($did(4)) } 
}