Cuentas Contables
Enviado por Piruwebmaster • 17 de Marzo de 2012 • 3.505 Palabras (15 Páginas) • 794 Visitas
Option Explicit
Public Numero As String
Public DeBase As Integer
Public tobase As Integer
' función que convierte de número Hexadecimal a Decimal
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Public Function HexToDec(ByVal HexStr As String) As Double
Dim mult As Double
Dim DecNum As Double
Dim ch As String
mult = 1
DecNum = 0
Dim i As Integer
For i = Len(HexStr) To 1 Step -1
ch = Mid(HexStr, i, 1)
If (ch >= "0") And (ch <= "9") Then
DecNum = DecNum + (Val(ch) * mult)
Else
If (ch >= "A") And (ch <= "F") Then
DecNum = DecNum + ((Asc(ch) - Asc("A") + 10) * mult)
Else
If (ch >= "a") And (ch <= "f") Then
DecNum = DecNum + ((Asc(ch) - Asc("a") + 10) * mult)
Else
HexToDec = 0
Exit Function
End If
End If
End If
mult = mult * 16
Next i
HexToDec = DecNum
End Function
' función que convierte de número Decimal a Hexadecimal
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Public Function DecToHex(ByVal DecNum As Double) As String
Dim remainder As Integer
Dim HexStr As String
HexStr = ""
Do While DecNum <> 0
remainder = DecNum Mod 16
If remainder <= 9 Then
HexStr = Chr(Asc(remainder)) & HexStr
Else
HexStr = Chr(Asc("A") + remainder - 10) & HexStr
End If
DecNum = DecNum \ 16
Loop
If HexStr = "" Then HexStr = "0"
DecToHex = HexStr
End Function
' función que convierte de número Decimal a Binario
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Public Function DecToBin(ByVal DecNum As Double) As String
Dim BinStr As String
BinStr = ""
Do While DecNum <> 0
If (DecNum Mod 2) = 1 Then
BinStr = "1" & BinStr
Else
BinStr = "0" & BinStr
End If
DecNum = DecNum \ 2
Loop
If BinStr = "" Then BinStr = "0000"
DecToBin = BinStr
End Function
' función que convierte de número Binario a número decimal
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