CNV_B64Filter removes non-base64 characters from a string.
Public Declare Function CNV_B64Filter Lib "diCrPKI.dll"
(ByVal strOutput As String, ByVal strInput As String, ByVal nStrLen As Long) As Long
nRet = CNV_B64Filter(strOutput, strInput, nStrLen)
String to receive filtered characters.String to be filtered.Long specifying the length of the input string.
long _stdcall CNV_B64Filter(char *szOutput, const char *input, long len);
Long: If successful, the return value is the number of characters in the filtered string;
otherwise it returns a negative error code.
Assumes that the output string is at least as long as the input string.
Wrapper function to return a filtered string directly:
Public Function cnvB64Filter(strB64 As String) As String
Dim strFiltered As String
Dim nDataLen As Long
strFiltered = String(Len(strB64), " ")
nDataLen = CNV_B64Filter(strFiltered, strB64, Len(strB64))
strFiltered = Left$(strFiltered, nDataLen)
cnvB64Filter = strFiltered
End Function
CNV_B64StrFromBytes CNV_BytesFromB64Str