Option Explicit
'****************
' Main Function *
'****************
Function Letra(ByVal MyNumber)
Dim Pesos, Centavos, Temp
Dim DecimalPlace, Count
ReDim Place(9) As String
Place(2) = " Mil "
Place(3) = " Millón "
Place(4) = " Billón "
Place(5) = " Trillón "
' String representation of amount.
MyNumber = Trim(Str(MyNumber))
' Position of decimal place 0 if none.
DecimalPlace = InStr(MyNumber, ".")
' Convert Centavos and set MyNumber to dollar amount.
If DecimalPlace > 0 Then
Centavos = GetTens(Left(Mid(MyNumber, DecimalPlace + 1) & _
"00", 2))
MyNumber = Trim(Left(MyNumber, DecimalPlace - 1))
End If
Count = 1
Do While MyNumber<> ""
Temp = GetHundreds(Right(MyNumber, 3))
If Temp<> "" Then Pesos = Temp & Place(Count) & Pesos
If Len(MyNumber) > 3 Then
MyNumber = Left(MyNumber, Len(MyNumber) - 3)
Else
MyNumber = ""
End If
Count = Count + 1
Loop
Select Case Pesos
Case ""
Pesos = "No Pesos"
Case "One"
Pesos = "Un Peso"
Case Else
Pesos = Pesos & " Pesos"
End Select
Select Case Centavos
Case ""
Centavos = " y 00/100 Centavos"
Case "One"
Centavos = " y Un Centavo"
Case Else
Centavos = " y " & Centavos & " Centavos"
End Select
Letra = Pesos & Centavos
End Function
'*******************************************
' Converts a number from 100-999 into text *
'*******************************************
Function GetHundreds(ByVal MyNumber)
Dim Result As String
If Val(MyNumber) = 0 Then Exit Function
MyNumber = Right("000" & MyNumber, 3)
' Convert the hundreds place.
If Mid(MyNumber, 1, 1)<> "0" Then
Result = GetDigit(Mid(MyNumber, 1, 1)) & " Ciento "
End If
' Convert the tens and ones place.
If Mid(MyNumber, 2, 1)<> "0" Then
Result = Result & GetTens(Mid(MyNumber, 2))
Else
Result = Result & GetDigit(Mid(MyNumber, 3))
End If
GetHundreds = Result
End Function
'*********************************************
' Converts a number from 10 to 99 into text. *
'*********************************************
Function GetTens(TensText)
Dim Result As String
Result = "" ' Null out the temporary function value.
If Val(Left(TensText, 1)) = 1 Then ' If value between 10-19...
Select Case Val(TensText)
Case 10: Result = "Díez"
Case 11: Result = "Once"
Case 12: Result = "Doce"
Case 13: Result = "Trece"
Case 14: Result = "Catorce"
Case 15: Result = "Quince"
Case 16: Result = "Dieciséis"
Case 17: Result = "Diecisiete"
Case 18: Result = "Dieciocho"
Case 19: Result = "Diecinueve"
Case Else
End Select
Else ' If value between 20-99...
Select Case Val(Left(TensText, 1))
Case 2: Result = "Veinte "
Case 3: Result = "Treinta "
Case 4: Result = "Cuarenta "
Case 5: Result = "Cincuenta "
Case 6: Result = "Sesenta "
Case 7: Result = "Setenta "
Case 8: Result = "Ochenta "
Case 9: Result = "Noventa "
Case Else
End Select
Result = Result & GetDigit _
(Right(TensText, 1)) ' Retrieve ones place.
End If
GetTens = Result
End Function
'*******************************************
' Converts a number from 1 to 9 into text. *
'*******************************************
Function GetDigit(Digit)
Select Case Val(Digit)
Case 1: GetDigit = "Un"
Case 2: GetDigit = "Dos"
Case 3: GetDigit = "Tres"
Case 4: GetDigit = "Cuatro"
Case 5: GetDigit = "Cinco"
Case 6: GetDigit = "Seis"
Case 7: GetDigit = "Siete"
Case 8: GetDigit = "Ocho"
Case 9: GetDigit = "Nueve"
Case Else: GetDigit = ""
End Select
End Function
