DZone Snippets is a public source code repository. Easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world
Excel Vba Code To Change Number Systems
Comes very useful
Option Explicit
Public Function Hex_To_Decimal(ByVal vntHex_Value As Variant) As Variant
'
'----------------------------------------------------------------------------
' Experts Exchange Question:
' Home \ All Topics \ Applications \ MS Office \ Excel
'
'http://www.experts-exchange.com/Appl..._21547447.html
' Creating Column that does hexidecimal math
'
' Copyright (c) 2005 Clearlogic Concepts (UK) Limited
' N.Lee [ http://NigelLee.info ] - 1 September 2005
'
'----------------------------------------------------------------------------
Dim intLoop As Integer
Dim vntMultiplier As Variant
Dim vntReturn As Variant
On Error GoTo Err_Hex_To_Decimal
vntMultiplier = CDec(1)
For intLoop = Len(vntHex_Value) To 1 Step -1
vntReturn = vntReturn + CDec(vntMultiplier) * CDec("&H" & _
Mid$(vntHex_Value, intLoop, 1))
vntMultiplier = CDec(vntMultiplier * 16)
Next intLoop
Exit_Hex_To_Decimal:
On Error Resume Next
Hex_To_Decimal = vntReturn
Exit Function
Err_Hex_To_Decimal:
On Error Resume Next
vntReturn = CDec(0)
Resume Exit_Hex_To_Decimal
End Function
Public Function Decimal_To_Hex(ByVal vntDecimal_Value As Variant) As String
'
'----------------------------------------------------------------------------
' Experts Exchange Question:
' Home \ All Topics \ Applications \ MS Office \ Excel
'
'http://www.experts-exchange.com/Appl..._21547447.html
' Creating Column that does hexidecimal math
'
' Copyright (c) 2005 Clearlogic Concepts (UK) Limited
' N.Lee [ http://NigelLee.info ] - 1 September 2005
'
'----------------------------------------------------------------------------
Dim intHex_Value As Integer
Dim intLoop As Integer
Dim vntDec_Value As Variant
Dim strReturn As String
On Error GoTo Err_Decimal_To_Hex
If Len(vntDecimal_Value) > 14 Then
strReturn = "* ERROR *"
Else
strReturn = ""
vntDec_Value = CDec(vntDecimal_Value)
For intLoop = Len(vntDecimal_Value) - 1 To 0 Step -1
intHex_Value = Int(vntDec_Value / (16 ^ intLoop))
vntDec_Value = vntDec_Value - (intHex_Value * (16 ^ intLoop))
strReturn = strReturn & Hex(intHex_Value)
Next intLoop
End If
Exit_Decimal_To_Hex:
On Error Resume Next
If Left$(strReturn, 1) = "0" Then
strReturn = StrReverse(strReturn)
strReturn = StrReverse(Left$(strReturn, InStr(strReturn, "0") - 1))
End If
Decimal_To_Hex = strReturn
Exit Function
Err_Decimal_To_Hex:
On Error Resume Next
strReturn = "* ERROR *"
Resume Exit_Decimal_To_Hex
End Function
