Attribute VB_Name = "Module1"
 Declare Function OpenComm Lib "mifdll.dll" (ByVal nPort As Integer) As Integer
 Declare Function CloseComm Lib "mifdll.dll" () As Integer
 Declare Function GetState Lib "mifdll.dll" (ByVal nPort As Integer) As Integer

 Declare Function mif_request Lib "mifdll.dll" (ByVal mode As Byte) As Integer
 Declare Function mif_anticoll Lib "mifdll.dll" (ByVal bcnt As Byte, ByRef nSnr As Long) As Integer
 Declare Function mif_select Lib "mifdll.dll" (ByVal nSnr As Long, ByRef nSize As Byte) As Integer
 Declare Function mif_load_key Lib "mifdll.dll" (ByVal mode As Byte, ByVal key_addr As Byte, ByVal transportkey As String, ByVal newkey As String) As Integer

 Declare Function mif_authentication Lib "mifdll.dll" (ByVal mode As Byte, ByVal sector_nr As Byte) As Integer
 Declare Function mif_authentication_2 Lib "mifdll.dll" (ByVal mode As Byte, ByVal key_nr As Byte, ByVal adr As Byte) As Integer
 Declare Function mif_read Lib "mifdll.dll" (ByVal adr As Byte, ByVal readdata As String) As Integer
 Declare Function mif_write Lib "mifdll.dll" (ByVal adr As Byte, ByVal writedata As String) As Integer
 Declare Function mif_check_write Lib "mifdll.dll" (ByVal snr As Long, ByVal authmode As Byte, ByVal adr As Byte, ByVal writedata As String) As Integer
 Declare Function mif_initval Lib "mifdll.dll" (ByVal adr As Byte, ByVal value As Long) As Integer
 Declare Function mif_increment Lib "mifdll.dll" (ByVal adr As Byte, ByVal value As Long) As Integer
 Declare Function mif_decrement Lib "mifdll.dll" (ByVal adr As Byte, ByVal value As Long) As Integer
 Declare Function mif_restore Lib "mifdll.dll" (ByVal adr As Byte) As Integer
 Declare Function mif_transfer Lib "mifdll.dll" (ByVal adr As Byte) As Integer
 Declare Function mif_halt Lib "mifdll.dll" () As Integer
 Declare Function mif_reset Lib "mifdll.dll" (ByVal msec As Byte) As Integer
 Declare Function mif_request_2 Lib "mifdll.dll" (ByVal mode As Byte, ByRef tt As Integer) As Integer
Public Function NumToChar(ByVal nNum As Byte) As String
    If (nNum >= 0 And nNum <= 9) Then
        NumToChar = Chr(nNum + 48)
    End If
    If (nNum >= 10 And nNum < 16) Then
        NumToChar = Chr(nNum + 55)
    End If
End Function
Public Function CharToNum(inChar As String) As Byte
    Select Case UCase(inChar)
        Case "0" To "9": CharToNum = CByte(inChar)
        Case "A" To "F": CharToNum = Asc(UCase(inChar)) - 55
        Case Else:       CharToNum = 0
    End Select
End Function
Public Function ValidText(KeyIn As Integer, ValidateString As String, Editable As Boolean) As Integer
    Dim ValidateList As String
    Dim KeyOut As Integer
    If Editable = True Then
         ValidateList = UCase(ValidateString) & Chr(8)
    Else
         ValidateList = UCase(ValidateString)
    End If
    If InStr(1, ValidateList, UCase(Chr(KeyIn)), 1) > 0 Then
        KeyOut = KeyIn
    Else
        KeyOut = 0
        Beep
    End If
    ValidText = KeyOut
End Function