Author Topic: RFID 無線射頻識別的編碼轉換函數  (Read 6282 times)

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RFID 無線射頻識別的編碼轉換函數
« on: October 11, 2010, 11:55:32 PM »
Code: [Select]
Attribute VB_Name = "modEMCode"
Option Explicit

Public Function LongtoLoHi(tmpIndex As Long) As String
    Dim intY As Integer
    Dim tmpResult As String
    Dim tmpString As String
    tmpString = Hex(tmpIndex)
    While Len(tmpString) < 8
        tmpString = "0" & tmpString
    Wend
    tmpResult = Right(tmpString, 2) & Mid(tmpString, 5, 2) & Mid(tmpString, 3, 2) & Left(tmpString, 2)
    LongtoLoHi = tmpResult
End Function

Public Function IntegertoLoHi(tmpIndex As Integer) As String
    Dim intY As Integer
    Dim tmpResult As String
    Dim tmpString As String
    tmpString = Hex(tmpIndex)
    While Len(tmpString) < 4
        tmpString = "0" & tmpString
    Wend
    tmpResult = Right(tmpString, 2) & Left(tmpString, 2)
    IntegertoLoHi = tmpResult
End Function

Public Function Stdto8H10D(tmpCode As String) As String

End Function

Public Function Stdto6H8D(tmpCode As String) As String

End Function

Public Function Stdto2H4H(tmpCode As String) As String

End Function

Public Function Stdto4H4H(tmpCode As String) As String

End Function

Public Function Conv2H4Hto8H10D(tmpCode As String) As String      '如號碼太大, 不能轉回真正的8H10D 編號, 必須檢查購貨的EM咭編號
    Dim intX As Integer
    Dim tmp2H As String
    Dim tmp4H As String
    Dim tmpResult As String
    If Len(tmpCode) > 0 Then
        While Len(tmpCode) < 8
            tmpCode = "0" & tmpCode
        Wend
        tmp2H = Hex(Left(tmpCode, 3))
        If Len(tmp2H) < 2 Then tmp2H = "0" & tmp2H
        tmp4H = Hex(Right(tmpCode, 5))
        While Len(tmp4H) < 4
            tmp4H = "0" & tmp4H
        Wend
        tmpResult = CDec("&H" & "00" & tmp2H & tmp4H)
        While Len(tmpResult) < 10
            tmpResult = "0" & tmpResult
        Wend
       
    End If
    Conv2H4Hto8H10D = tmpResult
End Function


Public Function Conv8H10Dto2H4H(tmpCode As String) As String
    Dim intX As Integer
    Dim tmpResult As String
    Dim tmpString As String
    Dim tmp2H As String
    Dim tmp4H As String
    tmpResult = Empty
    If Len(tmpCode) > 0 Then
        tmpString = Hex(cuLong(tmpCode))
        While Len(tmpString) < 8
            tmpString = "0" & tmpString
        Wend
        tmp2H = CDec("&H" & Mid(tmpString, 3, 2))
        While Len(tmp2H) < 3
            tmp2H = "0" & tmp2H
        Wend
       
        tmp4H = CDec("&H" & Right(tmpString, 4))
        While Len(tmp4H) < 5
            tmp4H = "0" & tmp4H
        Wend
        tmpResult = tmp2H & tmp4H
    End If
    Conv8H10Dto2H4H = tmpResult

End Function
« Last Edit: October 11, 2010, 11:57:44 PM by Roy Chan »