Add Original SDK
This commit is contained in:
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' !! We strongly recommend that you read the "readme.txt" file in the sample code folder.
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' !! It contains important instructions on how to use the sample code
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Imports System.Runtime.InteropServices
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Public Class Form1
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Inherits System.Windows.Forms.Form
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#Region " Windows Form Designer generated code "
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Public Sub New()
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MyBase.New()
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'This call is required by the Windows Form Designer.
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InitializeComponent()
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'Add any initialization after the InitializeComponent() call
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End Sub
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'Form overrides dispose to clean up the component list.
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Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
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If disposing Then
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If Not (components Is Nothing) Then
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components.Dispose()
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End If
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End If
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MyBase.Dispose(disposing)
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End Sub
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'Required by the Windows Form Designer
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Private components As System.ComponentModel.IContainer
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'NOTE: The following procedure is required by the Windows Form Designer
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'It can be modified using the Windows Form Designer.
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'Do not modify it using the code editor.
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Friend WithEvents Label1 As System.Windows.Forms.Label
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<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
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Me.Label1 = New System.Windows.Forms.Label()
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Me.SuspendLayout()
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'
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'Label1
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'
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Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 24.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
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Me.Label1.Location = New System.Drawing.Point(72, 80)
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Me.Label1.Name = "Label1"
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Me.Label1.Size = New System.Drawing.Size(168, 40)
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Me.Label1.TabIndex = 0
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Me.Label1.Text = "It Worked!"
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'
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'Form1
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'
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Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
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Me.ClientSize = New System.Drawing.Size(304, 213)
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Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label1})
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Me.Name = "Form1"
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Me.Text = "Form1"
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Me.ResumeLayout(False)
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End Sub
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#End Region
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' The sample code contains 11 functions. You will not need to use all these
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' functions in your code. Just use which ever functions are most appropriate
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' and customise in your own way. The sample code is just a guide. You should
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' implement the protection in a stronger way using the techniques described in
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' the "Increasing your Protection" chapter of the manual.
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'
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' The 11 functions are:
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' ProtCheck a standard protection check
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' ProtCheckWithAlg a protection check & executing an Algorithm
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' WriteBytes a protection check & write data to the dongle
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' ReadBytes a protection check & read data from the dongle
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' EncryptUserData a protection check,& encrypting data and then decrypting the data
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'
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' these functions are the same as the functions listed above but encrypting all parameters passed to our API
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' ProtCheckEnc a standard protection check
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' ProtCheckWithAlgEnc a protection check & executing an Algorithm
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' WriteBytesEnc a protection check & write data to the dongle
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' ReadBytesEnc a protection check & read data from the dongle
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' EncryptUserDataEnc a protection check & encrypting data and then decrypting the data
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' this function displays the current network users
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' DisplayNetUsers
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' !!!!
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Public Const MY_SDSN As Integer = 10101 ' !!!! change this value to be the value of your SDSN (demo = 10101)
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Public Const MY_PRODCODE As String = "DEMO" ' !!!! change this value to match the Product Code in the dongle
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' If you are using Dinkey Lite then you can only use 4 functions:
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' ProtCheck, ProtCheckWithAlg, ProtCheckEnc, ProtCheckWithAlgEnc
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Private Sub Form1_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
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' call the function(s) of your choice here
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' here I have chosen a standard protection check
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If ProtCheck() <> 0 Then
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End 'terminate
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End If
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End Sub
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' ************************* our 10 functions **********************************
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' ************************** ProtCheck ***************************************
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Function ProtCheck() As Integer
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Dim dris As DRIS = New DRIS
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Dim ret_code As Integer
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On Error GoTo Protection_Err
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' set the DRIS to have random values
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Call RandomSet(dris)
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' then set the values we want to use
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dris.header1 = Asc("D")
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dris.header2 = Asc("R")
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dris.header3 = Asc("I")
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dris.header4 = Asc("S")
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dris.size = Marshal.SizeOf(dris)
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dris.myfunction = PROTECTION_CHECK ' standard protection check
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dris.flags = 0 ' no extra flags, but you may want to specify some if you want to start a network user or decrement execs,...
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ret_code = DDProtCheck(dris, Nothing)
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If (ret_code <> 0) Then
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Call DisplayError(ret_code, dris.ext_err)
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ProtCheck = ret_code
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Exit Function
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End If
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' later in your code you can check other values in the DRIS...
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If (dris.sdsn <> MY_SDSN) Then
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MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
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ProtCheck = -1
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Exit Function
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End If
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If (GetProductCode(dris) <> MY_PRODCODE) Then
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MsgBox("Incorrect Product Code! Please modify your source code so that MY_PRODCODE is set to be the Product Code in the dongle.", MsgBoxStyle.OkOnly, "Error")
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ProtCheck = -1
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Exit Function
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End If
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' later on in your program you can check the return code again
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If (dris.ret_code <> 0) Then
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MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
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ProtCheck = -1
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Exit Function
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End If
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' NB if you are using a network dongle and you want to list the network users then use this function:
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' DisplayNetUsers(dris.net_users, dris.model)
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ProtCheck = 0
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Exit Function
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Protection_Err: ' see readme.txt for explanation of this exception handler
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Protection_Exception()
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ProtCheck = -1
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End Function
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' ************************** ProtCheckWithAlg ******************************
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' !!!! You should replace this function with the one generated by the
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' "generate source code" button in Algorithm tab for DinkeyAdd (if you have specified an algorithm)
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' or from DinkeyLook if you are using Dinkey Lite dongles.
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' see readme.txt notes concerning using the algorithm in vb.net
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Private Function MyAlgorithm(ByVal a As Integer, ByVal b As Integer, ByVal c As Integer, ByVal d As Integer, ByVal e As Integer, ByVal f As Integer, ByVal g As Integer, ByVal h As Integer) As Integer
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MyAlgorithm = a + b + c + d + e + f + g + h
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End Function
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' NB for this to work you must program at least "user algorithm" into the dongle
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' NB We have used a very simple algorithm here (in the MyAlgorithm function). You must patch this with the
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' sample code generated by DinkeyAdd for the algorithm that you are using.
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Function ProtCheckWithAlg() As Integer
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Dim dris As DRIS = New DRIS
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Dim ret_code As Integer
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On Error GoTo Protection_Err
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' set the DRIS to have random values
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Call RandomSet(dris)
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' then set the values we want to use
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dris.header1 = Asc("D")
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dris.header2 = Asc("R")
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dris.header3 = Asc("I")
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dris.header4 = Asc("S")
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dris.size = Marshal.SizeOf(dris)
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dris.myfunction = EXECUTE_ALGORITHM ' standard protection check & execute algorithm
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dris.flags = 0 ' no extra flags, but you may want to specify some if you want to start a network user or decrement execs,...
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dris.alg_number = 1 ' execute first algorithm (you do not need to specify this field for Dinkey Lite dongles)
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' you should remove these entries if you are using Dinkey Lite so that algorithm arguments are random
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dris.var_a = 1 ' sample values
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dris.var_b = 2
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dris.var_c = 3
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dris.var_d = 4
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dris.var_e = 5
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dris.var_f = 6
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dris.var_g = 7
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dris.var_h = 8
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ret_code = DDProtCheck(dris, Nothing)
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If (ret_code <> 0) Then
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Call DisplayError(ret_code, dris.ext_err)
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ProtCheckWithAlg = ret_code
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Exit Function
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End If
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' later in your code you can check other values in the DRIS...
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If (dris.sdsn <> MY_SDSN) Then
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MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
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ProtCheckWithAlg = -1
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Exit Function
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End If
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' later on in your program you can check the return code again
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If (dris.ret_code <> 0) Then
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MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
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ProtCheckWithAlg = -1
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Exit Function
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End If
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' if you want you can check the algorithm answer - however if algorithm is from your code then best to just use the answer in your code
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' NB read the note in the "readme.txt" about possible overflow errors in VB.NET
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' !!!! Make sure you have replaced the MyAlgorithm routine with the algorithm you have specified in DinkeyAdd
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If (MyAlgorithm(dris.var_a, dris.var_b, dris.var_c, dris.var_d, dris.var_e, dris.var_f, dris.var_g, dris.var_h) <> dris.alg_answer) Then
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MsgBox("Dinkey protection error!\nYou have not patched your algorithm in the MyAlgorithm routine", MsgBoxStyle.OkOnly, "Error")
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ProtCheckWithAlg = -1
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Exit Function
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End If
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ProtCheckWithAlg = 0
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Exit Function
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Protection_Err: ' see readme.txt for explanation of this exception handler
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Protection_Exception()
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ProtCheckWithAlg = -1
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End Function
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' ************************** WriteBytes ******************************
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' This writes the data array 0,1,2,3,4,5,6,7,8,9 to the dongle data area at offset 7
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' In order for this function to work you will need to have a data area in your dongle that is at least 18 bytes long.
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' if you want to write a string then you need to convert it to a byte array first:
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' encoding.GetBytes(your_string, 0, your_string.Length, data, 0) where encoding is declared: Dim encoding As New ASCIIEncoding() You also need to include System.Text
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Function WriteBytes() As Integer
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Dim dris As DRIS = New DRIS
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Dim ret_code As Integer
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Dim data() As Byte = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
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On Error GoTo Protection_Err
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' set the DRIS to have random values
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Call RandomSet(dris)
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' then set the values we want to use
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dris.header1 = Asc("D")
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dris.header2 = Asc("R")
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dris.header3 = Asc("I")
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dris.header4 = Asc("S")
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dris.size = Marshal.SizeOf(dris)
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dris.myfunction = WRITE_DATA_AREA ' standard protection check & write data
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dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
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dris.rw_offset = 7
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dris.rw_length = data.Length
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ret_code = DDProtCheck(dris, data)
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If (ret_code <> 0) Then
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Call DisplayError(ret_code, dris.ext_err)
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WriteBytes = ret_code
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Exit Function
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End If
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' later in your code you can check other values in the DRIS...
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If (dris.sdsn <> MY_SDSN) Then
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MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
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WriteBytes = -1
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Exit Function
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End If
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' later on in your program you can check the return code again
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If (dris.ret_code <> 0) Then
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MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
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WriteBytes = -1
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Exit Function
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End If
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WriteBytes = 0
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Exit Function
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Protection_Err: ' see readme.txt for explanation of this exception handler
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Protection_Exception()
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WriteBytes = -1
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End Function
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' ************************ ReadBytes ************************************
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' This reads 10 bytes of data from offset 7 in the dongle data area
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' In order for this function to work you will need to have a data area in your dongle that is at least 18 bytes long.
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' if you want to read a string then you need to convert it from a byte array (via an array of char). You also need to include System.Text
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' CharArray = encoding.GetChars(data); where CharArray is of type char[] and encoding is of type ASCIIEncoding
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' your_string = new String(CharArray, 0, your_string_length);
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Function ReadBytes() As Integer
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Dim dris As DRIS = New DRIS
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Dim ret_code As Integer
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Dim data(10) As Byte
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On Error GoTo Protection_Err
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' set the DRIS to have random values
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Call RandomSet(dris)
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' then set the values we want to use
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dris.header1 = Asc("D")
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dris.header2 = Asc("R")
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dris.header3 = Asc("I")
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dris.header4 = Asc("S")
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dris.size = Marshal.SizeOf(dris)
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dris.myfunction = READ_DATA_AREA ' standard protection check & read data
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dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
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dris.rw_offset = 7
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dris.rw_length = data.Length
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ret_code = DDProtCheck(dris, data)
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If (ret_code <> 0) Then
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Call DisplayError(ret_code, dris.ext_err)
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ReadBytes = ret_code
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Exit Function
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End If
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' later in your code you can check other values in the DRIS...
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If (dris.sdsn <> MY_SDSN) Then
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MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
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ReadBytes = -1
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Exit Function
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End If
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' later on in your program you can check the return code again
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If (dris.ret_code <> 0) Then
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MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
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ReadBytes = -1
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Exit Function
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End If
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MsgBox("Dinkey Dongle Data Area, offset 7 is : " + Str(data(0)) + "," + Str(data(1)) + "," + Str(data(2)) + "," + Str(data(3)) + "," + _
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Str(data(4)) + "," + Str(data(5)) + "," + Str(data(6)) + "," + Str(data(7)) + "," + Str(data(8)) + "," + Str(data(9)), MsgBoxStyle.OkOnly)
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ReadBytes = 0
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Exit Function
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Protection_Err: ' see readme.txt for explanation of this exception handler
|
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Protection_Exception()
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ReadBytes = -1
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End Function
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||||
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' ************************** EncryptUserData ************************************
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' This function will do a protection check and ask the dongle to encrypt some data using encryption key 1
|
||||
' It will then do another protection check & decrypt the data
|
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' to encrypt or decrypt strings please read notes for WriteBytes and ReadBytes functions
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Function EncryptUserData() As Integer
|
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Dim dris As DRIS = New DRIS
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Dim ret_code As Integer
|
||||
Dim data() As Byte = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
|
||||
On Error GoTo Protection_Err
|
||||
|
||||
' set the DRIS to have random values
|
||||
Call RandomSet(dris)
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = ENCRYPT_USER_DATA ' standard protection check & encrypt data
|
||||
dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
|
||||
dris.rw_length = data.Length
|
||||
dris.data_crypt_key_num = 1
|
||||
|
||||
ret_code = DDProtCheck(dris, data)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
EncryptUserData = ret_code
|
||||
Exit Function
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||||
End If
|
||||
|
||||
' ... could add code to check other elements of the DRIS, e.g. ret_code, sdsn, ...
|
||||
|
||||
' Now decrypt the same data to get the original values
|
||||
Call RandomSet(dris)
|
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' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = DECRYPT_USER_DATA ' standard protection check & decrypt data
|
||||
dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
|
||||
dris.rw_length = data.Length
|
||||
dris.data_crypt_key_num = 1
|
||||
|
||||
ret_code = DDProtCheck(dris, data)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
EncryptUserData = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later in your code you can check other values in the DRIS...
|
||||
If (dris.sdsn <> MY_SDSN) Then
|
||||
MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
|
||||
EncryptUserData = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later on in your program you can check the return code again
|
||||
If (dris.ret_code <> 0) Then
|
||||
MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
|
||||
EncryptUserData = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
MsgBox("Decrypted data is : " + Str(data(0)) + "," + Str(data(1)) + "," + Str(data(2)) + "," + Str(data(3)) + "," + _
|
||||
Str(data(4)) + "," + Str(data(5)) + "," + Str(data(6)) + "," + Str(data(7)) + "," + Str(data(8)) + "," + Str(data(9)), MsgBoxStyle.OkOnly)
|
||||
EncryptUserData = 0
|
||||
Exit Function
|
||||
Protection_Err: ' see readme.txt for explanation of this exception handler
|
||||
Protection_Exception()
|
||||
EncryptUserData = -1
|
||||
End Function
|
||||
|
||||
' !!!!!!!!!!! all the functions listed below encrypt all parameters to our API !!!!!!!!!!!!!!!!!!!!!
|
||||
' In order for them to work properly you need to choose "Encrypt DRIS" and "Encrypt Data passed to API"
|
||||
' in the Extra Security tab of DinkeyAdd. In this example, for Data Encryption I use the r/w algorithm
|
||||
' but the code can be modified easily to use the 3 encryption parameters.
|
||||
|
||||
' !!!! please overwrite this function with the one generated by DinkeyAdd for R/W Algorithm
|
||||
Private Function MyRWAlgorithm(ByVal a As Integer, ByVal b As Integer, ByVal c As Integer, ByVal d As Integer, ByVal e As Integer, ByVal f As Integer, ByVal g As Integer, ByVal h As Integer) As Integer
|
||||
MyRWAlgorithm = a Xor b Xor c Xor d Xor e Xor f
|
||||
MyRWAlgorithm = MyRWAlgorithm And &HFFFFFF ' we only use bottom 3 bytes. -ve numbers can cause problems for CryptApiData
|
||||
End Function
|
||||
|
||||
' !!!! please overwrite this function with the one generated by DinkeyAdd
|
||||
Private Sub CryptDRIS(ByRef dris As DRIS)
|
||||
Dim i, j, k, t As Integer
|
||||
Dim bigseed(255) As Byte
|
||||
Dim S(255) As Byte
|
||||
Dim temp As Byte
|
||||
Dim temp_dris(Marshal.SizeOf(dris) - 1) As Byte
|
||||
|
||||
DrisToByteArray(dris, temp_dris) ' convert DRIS to byte array so we can encrypt it
|
||||
|
||||
For i = 0 To 255 Step 8
|
||||
Call Set4Bytes(bigseed, i, dris.seed1)
|
||||
Call Set4Bytes(bigseed, i + 4, dris.seed2)
|
||||
Next
|
||||
For i = 0 To 255
|
||||
S(i) = i
|
||||
Next
|
||||
j = 0
|
||||
For i = 0 To 255
|
||||
j = (j + CInt(S(i)) + CInt(bigseed(i)) + 123) Mod 256
|
||||
temp = S(i)
|
||||
S(i) = S(j)
|
||||
S(j) = temp
|
||||
Next
|
||||
i = 0
|
||||
j = 0
|
||||
For k = 16 To Marshal.SizeOf(dris) - 1
|
||||
i = (i + 1) Mod 256
|
||||
j = (j + CInt(S(i)) + 212) Mod 256
|
||||
temp = S(i)
|
||||
S(i) = S(j)
|
||||
S(j) = temp
|
||||
t = (CInt(S(i)) + CInt(S(j)) + 97) Mod 256
|
||||
temp_dris(k) = temp_dris(k) Xor S(t)
|
||||
Next
|
||||
|
||||
ByteArrayToDris(temp_dris, dris) ' convert it back again
|
||||
End Sub
|
||||
|
||||
|
||||
' !!!! please overwrite this function with the one generated by DinkeyAdd
|
||||
Private Sub CryptApiData(ByVal dris As DRIS, ByVal data() As Byte, ByVal length As Integer, ByVal alg_answer As Integer)
|
||||
Dim i, j, k, t As Integer
|
||||
Dim bigseed(255) As Byte
|
||||
Dim S(255) As Byte
|
||||
Dim temp As Byte
|
||||
|
||||
For i = 0 To 255 Step 8
|
||||
Call Set4Bytes(bigseed, i, dris.seed1)
|
||||
Call Set4Bytes(bigseed, i + 4, dris.seed2)
|
||||
Next
|
||||
For i = 0 To 255
|
||||
S(i) = i
|
||||
Next
|
||||
j = 0
|
||||
For i = 0 To 255
|
||||
j = (j + CInt(S(i)) + CInt(bigseed(i)) + (alg_answer And &HFF)) Mod 256
|
||||
temp = S(i)
|
||||
S(i) = S(j)
|
||||
S(j) = temp
|
||||
Next
|
||||
i = 0
|
||||
j = 0
|
||||
For k = 0 To length - 1
|
||||
i = (i + 1) Mod 256
|
||||
j = (j + CInt(S(i)) + ((alg_answer \ &H100) And &HFF)) Mod 256
|
||||
temp = S(i)
|
||||
S(i) = S(j)
|
||||
S(j) = temp
|
||||
t = (CInt(S(i)) + CInt(S(j)) + ((alg_answer \ &H10000) And &HFF)) Mod 256
|
||||
data(k) = data(k) Xor S(t)
|
||||
Next
|
||||
End Sub
|
||||
|
||||
' ************************** ProtCheckEnc ************************************
|
||||
' We encrypt the DRIS passed to the API. Patch the CryptDRIS function in this file from source code generated by DinkeyAdd.
|
||||
Function ProtCheckEnc() As Integer
|
||||
Dim dris As DRIS = New DRIS
|
||||
Dim ret_code As Integer
|
||||
On Error GoTo Protection_Err
|
||||
|
||||
' set the DRIS to have random values
|
||||
Call RandomSet(dris)
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = PROTECTION_CHECK ' standard protection check
|
||||
dris.flags = 0 ' no extra flags, but you may want to specify some if you want to start a network user or decrement execs,...
|
||||
|
||||
Call CryptDRIS(dris) ' encrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
ret_code = DDProtCheck(dris, Nothing)
|
||||
|
||||
Call CryptDRIS(dris) ' decrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
ProtCheckEnc = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later in your code you can check other values in the DRIS...
|
||||
If (dris.sdsn <> MY_SDSN) Then
|
||||
MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
|
||||
ProtCheckEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
If (GetProductCode(dris) <> MY_PRODCODE) Then
|
||||
MsgBox("Incorrect Product Code! Please modify your source code so that MY_PRODCODE is set to be the Product Code in the dongle.", MsgBoxStyle.OkOnly, "Error")
|
||||
ProtCheckEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later on in your program you can check the return code again
|
||||
If (dris.ret_code <> 0) Then
|
||||
MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
|
||||
ProtCheckEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
ProtCheckEnc = 0
|
||||
Exit Function
|
||||
|
||||
Protection_Err: ' see readme.txt for explanation of this exception handler
|
||||
Protection_Exception()
|
||||
ProtCheckEnc = -1
|
||||
End Function
|
||||
|
||||
|
||||
' ************************** ProtCheckWithAlgEnc ****************************
|
||||
' NB for this to work you must program at least "user algorithm" into the dongle
|
||||
' NB We have used a very simple algorithm here (in the MyAlgorithm function). You must patch this with the
|
||||
' sample code generated by DinkeyAdd for the algorithm that you are using. For Dinkey Lite get source from DinkeyLook.
|
||||
' We encrypt the DRIS passed to the API. Patch the CryptDRIS function in this file from source code generated by DinkeyAdd.
|
||||
Function ProtCheckWithAlgEnc() As Integer
|
||||
Dim dris As DRIS = New DRIS
|
||||
Dim ret_code As Integer
|
||||
On Error GoTo Protection_Err
|
||||
|
||||
' set the DRIS to have random values
|
||||
Call RandomSet(dris)
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = EXECUTE_ALGORITHM ' standard protection check & execute algorithm
|
||||
dris.flags = 0 ' no extra flags, but you may want to specify some if you want to start a network user or decrement execs,...
|
||||
dris.alg_number = 1 ' execute first algorithm (you do not need to specify this field for Dinkey Lite dongles)
|
||||
' you should remove these entries if you are using Dinkey Lite so that algorithm arguments are random
|
||||
dris.var_a = 1 ' sample values
|
||||
dris.var_b = 2
|
||||
dris.var_c = 3
|
||||
dris.var_d = 4
|
||||
dris.var_e = 5
|
||||
dris.var_f = 6
|
||||
dris.var_g = 7
|
||||
dris.var_h = 8
|
||||
|
||||
Call CryptDRIS(dris) ' encrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
ret_code = DDProtCheck(dris, Nothing)
|
||||
|
||||
Call CryptDRIS(dris) ' decrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
ProtCheckWithAlgEnc = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later in your code you can check other values in the DRIS...
|
||||
If (dris.sdsn <> MY_SDSN) Then
|
||||
MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
|
||||
ProtCheckWithAlgEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later on in your program you can check the return code again
|
||||
If (dris.ret_code <> 0) Then
|
||||
MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
|
||||
ProtCheckWithAlgEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' if you want you can check the algorithm answer - however if algorithm is from your code then best to just use the answer in your code
|
||||
' !!!! Make sure you have replaced the MyAlgorithm routine with the algorithm you have specified in DinkeyAdd
|
||||
If (MyAlgorithm(dris.var_a, dris.var_b, dris.var_c, dris.var_d, dris.var_e, dris.var_f, dris.var_g, dris.var_h) <> dris.alg_answer) Then
|
||||
MsgBox("Dinkey protection error!\nYou have not patched your algorithm in the MyAlgorithm routine", MsgBoxStyle.OkOnly, "Error")
|
||||
ProtCheckWithAlgEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
ProtCheckWithAlgEnc = 0
|
||||
Exit Function
|
||||
Protection_Err: ' see readme.txt for explanation of this exception handler
|
||||
Protection_Exception()
|
||||
ProtCheckWithAlgEnc = -1
|
||||
End Function
|
||||
|
||||
' ************************** WriteBytesEnc ******************************
|
||||
' This writes the data array 0,1,2,3,4,5,6,7,8,9 to the dongle data area at offset 7
|
||||
' In order for this function to work you will need to have a data area in your dongle that is at least 18 bytes long.
|
||||
' We encrypt the DRIS and Data passed to the API. Patch the CryptDRIS and CryptApiData functions in this file from source code generated by DinkeyAdd.
|
||||
' to write string data please read notes for WriteBytes
|
||||
Function WriteBytesEnc() As Integer
|
||||
Dim dris As DRIS = New DRIS
|
||||
Dim ret_code, alg_ans As Integer
|
||||
Dim data() As Byte = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
|
||||
On Error GoTo Protection_Err
|
||||
|
||||
' set the DRIS to have random values
|
||||
Call RandomSet(dris) ' sets DRIS to have random values including seed1, seed2 and var_a..var_h
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = WRITE_DATA_AREA ' standard protection check & write data
|
||||
dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
|
||||
dris.rw_offset = 7
|
||||
dris.rw_length = data.Length
|
||||
dris.var_a = dris.var_a And &HFFFFFF ' restrict to 24-bit to prevent potential overflow in algorithm
|
||||
dris.var_b = dris.var_b And &HFFFFFF
|
||||
dris.var_c = dris.var_c And &HFFFFFF
|
||||
dris.var_d = dris.var_d And &HFFFFFF
|
||||
dris.var_e = dris.var_e And &HFFFFFF
|
||||
dris.var_f = dris.var_f And &HFFFFFF
|
||||
dris.var_g = dris.var_g And &HFFFFFF
|
||||
dris.var_h = dris.var_h And &HFFFFFF
|
||||
|
||||
' calculate r/w algorithm answer - NB need to replace MyRWAlgorithm code with code for r/w algorithm
|
||||
alg_ans = MyRWAlgorithm(dris.var_a, dris.var_b, dris.var_c, dris.var_d, dris.var_e, dris.var_f, dris.var_g, dris.var_h)
|
||||
|
||||
' encrypt data we want to write.
|
||||
CryptApiData(dris, data, data.Length, alg_ans)
|
||||
|
||||
Call CryptDRIS(dris) ' encrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
ret_code = DDProtCheck(dris, data)
|
||||
|
||||
Call CryptDRIS(dris) ' decrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
WriteBytesEnc = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later in your code you can check other values in the DRIS...
|
||||
If (dris.sdsn <> MY_SDSN) Then
|
||||
MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
|
||||
WriteBytesEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later on in your program you can check the return code again
|
||||
If (dris.ret_code <> 0) Then
|
||||
MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
|
||||
WriteBytesEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
WriteBytesEnc = 0
|
||||
Exit Function
|
||||
Protection_Err: ' see readme.txt for explanation of this exception handler
|
||||
Protection_Exception()
|
||||
WriteBytesEnc = -1
|
||||
End Function
|
||||
|
||||
' ************************ ReadBytesEnc ************************************
|
||||
' This reads 10 bytes of data from offset 7 in the dongle data area
|
||||
' In order for this function to work you will need to have a data area in your dongle that is at least 18 bytes long.
|
||||
' We encrypt the DRIS and Data passed from the API. Patch the CryptDRIS and CryptApiData functions in this file from source code generated by DinkeyAdd.
|
||||
' to read string data please notes for ReadBytes function
|
||||
Function ReadBytesEnc() As Integer
|
||||
Dim dris As DRIS = New DRIS
|
||||
Dim ret_code, alg_ans As Integer
|
||||
Dim data(10) As Byte
|
||||
On Error GoTo Protection_Err
|
||||
|
||||
' set the DRIS to have random values
|
||||
Call RandomSet(dris) ' sets DRIS to have random values including seed1, seed2 and var_a..var_h
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = READ_DATA_AREA ' standard protection check & read data
|
||||
dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
|
||||
dris.rw_offset = 7
|
||||
dris.rw_length = data.Length
|
||||
dris.var_a = dris.var_a And &HFFFFFF ' restrict to 24-bit to prevent potential overflow in algorithm
|
||||
dris.var_b = dris.var_b And &HFFFFFF
|
||||
dris.var_c = dris.var_c And &HFFFFFF
|
||||
dris.var_d = dris.var_d And &HFFFFFF
|
||||
dris.var_e = dris.var_e And &HFFFFFF
|
||||
dris.var_f = dris.var_f And &HFFFFFF
|
||||
dris.var_g = dris.var_g And &HFFFFFF
|
||||
dris.var_h = dris.var_h And &HFFFFFF
|
||||
|
||||
' calculate r/w algorithm answer - NB need to replace MyRWAlgorithm code with code for r/w algorithm
|
||||
alg_ans = MyRWAlgorithm(dris.var_a, dris.var_b, dris.var_c, dris.var_d, dris.var_e, dris.var_f, dris.var_g, dris.var_h)
|
||||
|
||||
Call CryptDRIS(dris) ' encrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
ret_code = DDProtCheck(dris, data)
|
||||
|
||||
Call CryptDRIS(dris) ' decrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
ReadBytesEnc = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later in your code you can check other values in the DRIS...
|
||||
If (dris.sdsn <> MY_SDSN) Then
|
||||
MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
|
||||
ReadBytesEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later on in your program you can check the return code again
|
||||
If (dris.ret_code <> 0) Then
|
||||
MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
|
||||
ReadBytesEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' decrypt data just read.
|
||||
CryptApiData(dris, data, data.Length, alg_ans)
|
||||
MsgBox("Dinkey Dongle Data Area, offset 7 is : " + Str(data(0)) + "," + Str(data(1)) + "," + Str(data(2)) + "," + Str(data(3)) + "," + _
|
||||
Str(data(4)) + "," + Str(data(5)) + "," + Str(data(6)) + "," + Str(data(7)) + "," + Str(data(8)) + "," + Str(data(9)), MsgBoxStyle.OkOnly)
|
||||
ReadBytesEnc = 0
|
||||
Exit Function
|
||||
Protection_Err: ' see readme.txt for explanation of this exception handler
|
||||
Protection_Exception()
|
||||
ReadBytesEnc = -1
|
||||
End Function
|
||||
|
||||
' ************************** EncryptUserDataEnc *********************************
|
||||
' This function will do a protection check and ask the dongle to encrypt some data using encryption key 1
|
||||
' It will then do another protection check & decrypt the data
|
||||
' We encrypt the DRIS and Data passed to/from the API. Patch the CryptDRIS and CryptApiData functions in this file from source code generated by DinkeyAdd.
|
||||
' to encrypt or decrypt strings please read notes for WriteBytes and ReadBytes functions
|
||||
Function EncryptUserDataEnc() As Integer
|
||||
Dim dris As DRIS = New DRIS
|
||||
Dim ret_code, alg_ans As Integer
|
||||
Dim data() As Byte = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
|
||||
On Error GoTo Protection_Err
|
||||
|
||||
' set the DRIS to have random values
|
||||
Call RandomSet(dris) ' sets DRIS to have random values including seed1, seed2 and var_a..var_h
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = ENCRYPT_USER_DATA ' standard protection check & encrypt data
|
||||
dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
|
||||
dris.rw_length = data.Length
|
||||
dris.data_crypt_key_num = 1
|
||||
dris.var_a = dris.var_a And &HFFFFFF ' restrict to 24-bit to prevent potential overflow in algorithm
|
||||
dris.var_b = dris.var_b And &HFFFFFF
|
||||
dris.var_c = dris.var_c And &HFFFFFF
|
||||
dris.var_d = dris.var_d And &HFFFFFF
|
||||
dris.var_e = dris.var_e And &HFFFFFF
|
||||
dris.var_f = dris.var_f And &HFFFFFF
|
||||
dris.var_g = dris.var_g And &HFFFFFF
|
||||
dris.var_h = dris.var_h And &HFFFFFF
|
||||
|
||||
' calculate r/w algorithm answer - NB need to replace MyRWAlgorithm code with code for r/w algorithm
|
||||
alg_ans = MyRWAlgorithm(dris.var_a, dris.var_b, dris.var_c, dris.var_d, dris.var_e, dris.var_f, dris.var_g, dris.var_h)
|
||||
|
||||
' encrypt data we pass to our API
|
||||
CryptApiData(dris, data, data.Length, alg_ans)
|
||||
|
||||
Call CryptDRIS(dris) ' encrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
ret_code = DDProtCheck(dris, data)
|
||||
|
||||
Call CryptDRIS(dris) ' decrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
EncryptUserDataEnc = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' ... could add code to check other elements of the DRIS, e.g. ret_code, sdsn, ...
|
||||
|
||||
' Now decrypt the same data to get the original values
|
||||
Call RandomSet(dris) ' sets DRIS to have random values including seed1, seed2 and var_a..var_h
|
||||
' then set the values we want to use
|
||||
dris.header1 = Asc("D")
|
||||
dris.header2 = Asc("R")
|
||||
dris.header3 = Asc("I")
|
||||
dris.header4 = Asc("S")
|
||||
dris.size = Marshal.SizeOf(dris)
|
||||
dris.myfunction = DECRYPT_USER_DATA ' standard protection check & decrypt data
|
||||
dris.flags = USE_FUNCTION_ARGUMENT ' you have to do it this way in vb.net
|
||||
dris.rw_length = data.Length
|
||||
dris.data_crypt_key_num = 1
|
||||
dris.var_a = dris.var_a And &HFFFFFF ' restrict to 24-bit to prevent potential overflow in algorithm
|
||||
dris.var_b = dris.var_b And &HFFFFFF
|
||||
dris.var_c = dris.var_c And &HFFFFFF
|
||||
dris.var_d = dris.var_d And &HFFFFFF
|
||||
dris.var_e = dris.var_e And &HFFFFFF
|
||||
dris.var_f = dris.var_f And &HFFFFFF
|
||||
dris.var_g = dris.var_g And &HFFFFFF
|
||||
dris.var_h = dris.var_h And &HFFFFFF
|
||||
|
||||
Call CryptDRIS(dris) ' encrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
ret_code = DDProtCheck(dris, data)
|
||||
|
||||
Call CryptDRIS(dris) ' decrypt DRIS (!!!!you should separate from DDProtCheck for greater security)
|
||||
|
||||
If (ret_code <> 0) Then
|
||||
Call DisplayError(ret_code, dris.ext_err)
|
||||
EncryptUserDataEnc = ret_code
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' calculate r/w algorithm answer - NB need to replace MyRWAlgorithm code with code for r/w algorithm
|
||||
alg_ans = MyRWAlgorithm(dris.var_a, dris.var_b, dris.var_c, dris.var_d, dris.var_e, dris.var_f, dris.var_g, dris.var_h)
|
||||
|
||||
' later in your code you can check other values in the DRIS...
|
||||
If (dris.sdsn <> MY_SDSN) Then
|
||||
MsgBox("Incorrect SDSN! Please modify your source code so that MY_SDSN is set to be your SDSN.", MsgBoxStyle.OkOnly, "Error")
|
||||
EncryptUserDataEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' later on in your program you can check the return code again
|
||||
If (dris.ret_code <> 0) Then
|
||||
MsgBox("Dinkey Dongle protection error", MsgBoxStyle.OkOnly, "Error")
|
||||
EncryptUserDataEnc = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
' decrypt data just returned by API.
|
||||
CryptApiData(dris, data, data.Length, alg_ans)
|
||||
MsgBox("Decrypted data is : " + Str(data(0)) + "," + Str(data(1)) + "," + Str(data(2)) + "," + Str(data(3)) + "," + _
|
||||
Str(data(4)) + "," + Str(data(5)) + "," + Str(data(6)) + "," + Str(data(7)) + "," + Str(data(8)) + "," + Str(data(9)), MsgBoxStyle.OkOnly)
|
||||
EncryptUserDataEnc = 0
|
||||
Exit Function
|
||||
Protection_Err: ' see readme.txt for explanation of this exception handler
|
||||
Protection_Exception()
|
||||
EncryptUserDataEnc = -1
|
||||
End Function
|
||||
|
||||
|
||||
' *********************** DisplayNetUsers *******************************
|
||||
' This function displays the current network users (for DinkeyNet only).
|
||||
' The DDProtCheck function must be called before this function is called.
|
||||
' (Normally you would use DinkeyServer to view the network users but this enables you to do it from the client if you want)
|
||||
Function DisplayNetUsers(net_users As Integer, model As Integer) As Integer
|
||||
Dim num_net_users, extended_error, ret_code, i, max_net_users As Integer
|
||||
Dim DisplayString As String
|
||||
|
||||
If net_users = -1 Then
|
||||
max_net_users = 100 ' if unlimited network users are allowed then display up to 100 users (for example)
|
||||
Else
|
||||
max_net_users = net_users
|
||||
End If
|
||||
|
||||
If max_net_users = 0 Then ' no network users are allowed, so nothing to do!
|
||||
DisplayNetUsers = 0
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
If model < 3 Then
|
||||
MsgBox("A network dongle has not been detected. Therefore you cannot display the network users.", MsgBoxStyle.OKOnly)
|
||||
DisplayNetUsers = -1
|
||||
Exit Function
|
||||
End If
|
||||
|
||||
Dim nu_info_array(max_net_users) As NU_INFO
|
||||
|
||||
' now get net users
|
||||
ret_code = DDGetNetUserList(Nothing, num_net_users, nu_info_array, max_net_users, extended_error)
|
||||
|
||||
If ret_code <> 0 Then
|
||||
MsgBox("Error " + Str(ret_code) + "/" + Str(extended_error) + " finding network user information.", MsgBoxStyle.OKOnly)
|
||||
Else
|
||||
DisplayString = "number of net users: " + Str(num_net_users) + Environment.NewLine
|
||||
For i = 0 To num_net_users - 1
|
||||
DisplayString = DisplayString + Str(i + 1) + ". licence: " + nu_info_array(i).LicenceName + ", user: " + nu_info_array(i).UserName + ", computer: " + nu_info_array(i).ComputerName + ", ip address: " + nu_info_array(i).IPAddress + Environment.NewLine
|
||||
Next
|
||||
MsgBox(DisplayString, MsgBoxStyle.OKOnly, "Net Users")
|
||||
End If
|
||||
DisplayNetUsers = ret_code
|
||||
|
||||
End Function
|
||||
|
||||
' look at the error code and try to display an appropriate message
|
||||
' you may want to change these messages and specify your own
|
||||
Public Sub DisplayError(ByVal ret_code As Integer, ByVal extended_error As Integer)
|
||||
Select Case ret_code
|
||||
Case 401
|
||||
MsgBox("Error! No dongles detected!", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 403
|
||||
MsgBox("Error! A dongle was detected but it was a different type to the one specified in DinkeyAdd.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 404
|
||||
MsgBox("Error! A dongle was detected but it was a different model to those specified in DinkeyAdd.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 409
|
||||
MsgBox("Error! The dongle detected has not been programmed by DinkeyAdd.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 410
|
||||
MsgBox("Error! A dongle was detected but it has a different Product Code to the one specified in DinkeyAdd.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 411
|
||||
MsgBox("Error! The dongle detected does not contain the licence associated with this program.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 413
|
||||
MsgBox("Error! This program has not been protected by DinkeyAdd. For guidance please read the DinkeyAdd chapter of the Dinkey manual.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 417
|
||||
MsgBox("Error! One or more of the parameters set in the DRIS is incorrect. This could be caused if you are encrypting the DRIS in your code but did not specify DRIS encryption in DinkeyAdd - or vice versa.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 423
|
||||
MsgBox("Error! The number of network users has been exceeded.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 435
|
||||
MsgBox("Error! DinkeyServer has not been detected on the network.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case 922
|
||||
MsgBox("Error! The Software Key has expired.", MsgBoxStyle.OKOnly, "Error")
|
||||
Case Else
|
||||
MsgBox("An error occurred checking the dongle. Error: " + Str(ret_code) + ". Extended Error: " + Str(extended_error) + ".", MsgBoxStyle.OKOnly, "Error")
|
||||
End Select
|
||||
End Sub
|
||||
|
||||
' if an error exception occurs during a protection check function then display an appropiate message
|
||||
' see readme.txt for an explaination
|
||||
Sub Protection_Exception()
|
||||
If (TypeOf Err.GetException() Is DllNotFoundException) Then
|
||||
If (IntPtr.Size = 4) Then
|
||||
MsgBox("Error! Cannot find dpwin32.dll. This should be in the same folder that DLLTest.exe is in.", MsgBoxStyle.OKOnly, "Error")
|
||||
Else
|
||||
MsgBox("Error! Cannot find dpwin64.dll. This should be in the same folder that DLLTest.exe is in.", MsgBoxStyle.OKOnly, "Error")
|
||||
End If
|
||||
Else
|
||||
MsgBox("Error! An exception occurred: " + Err.GetException.Message, MsgBoxStyle.OKOnly, "Error")
|
||||
End If
|
||||
End Sub
|
||||
|
||||
End Class
|
||||
Reference in New Issue
Block a user