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software / rapidq / Examples / Algorithm & Maths / hexverter.bas

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     $INCLUDE "rapidq.inc"

     DECLARE SUB hexvert
     DECLARE SUB decvert
     DECLARE SUB checkit
     DECLARE SUB clearall
     DECLARE SUB checkenter (key AS WORD, shift AS INTEGER)
     CREATE form AS QFORM
      height=79
      width=160
      center
      borderstyle=bsdialog
      CAPTION="hex 2 dec"
      CREATE hexval AS QEDIT
       top=5
       left=5
       width=70
       height=26
       onkeypress=checkenter
      END CREATE

      CREATE decval AS QEDIT
       top=5
       left=80
       width=70
       height=26
       onkeypress=checkenter
      END CREATE

      CREATE conv AS QBUTTON
       CAPTION="convert"
       top=30
       left=80
       width=70
       height=22
       onclick=checkit
      END CREATE
      CREATE clear AS QBUTTON
       CAPTION="clear"
       top=30
       left=5
       width=70
       height=22
       onclick=clearall
      END CREATE

      SHOWMODAL
     END CREATE

     SUB clearall
      hexval.text=""
      decval.text=""
     END SUB

     SUB checkit
      IF hexval.text<>"" AND decval.text<>"" THEN SHOWMESSAGE "please clear one field"
      IF hexval.text="" THEN decvert
      IF decval.text="" THEN hexvert
     END SUB


     SUB checkenter (key AS WORD, shift AS INTEGER)
      SELECT CASE key
      CASE 13
       checkit
      END SELECT
     END SUB


     SUB decvert
      hexval.text=HEX$(VAL(decval.text))
     END SUB


     SUB hexvert
      DIM total AS LONG
      DIM workval AS LONG
      latch=0
      total=0
      work$=""

      FOR t=1 TO LEN(hexval.text)
       value=16
       place=LEN(hexval.text)-t
       workval=0
       work$=LEFT$((MID$(hexval.text, t,t)),1)
       SELECT CASE work$
       CASE "0"
        workval=0
       CASE "1"
        workval=1
       CASE "2"
        workval=2
       CASE "3"
        workval=3
       CASE "4"
        workval=4
       CASE "5"
        workval=5
       CASE "6"
        workval=6
       CASE "7"
        workval=7
       CASE "8"
        workval=8
       CASE "9"
        workval=9
       CASE "a"
        workval=10
       CASE "b"
        workval=11
       CASE "c"
        workval=12
       CASE "d"
        workval=13
       CASE "e"
        workval=14
       CASE "f"
        workval=15
       CASE "A"
        workval=10
       CASE "B"
        workval=11
       CASE "C"
        workval=12
       CASE "D"
        workval=13
       CASE "E"
        workval=14
       CASE "F"
        workval=15
       CASE ELSE
        SHOWMESSAGE "improper calculation due to non-hex value"
        latch=1
       END SELECT

       value=16^place
       total=total+(workval*value)

      NEXT t
      decval.text=STR$(total)
      IF latch=1 THEN decval.text=""
     END SUB
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Email:webmaster1g.yi.org Hits:0 Last modified:2013-06-19 07:40:20