detect IMEI number

windows 2003 mobile.

here is the working code...


Dim t As New OpenNETCF.Tapi.Tapi
            t.Initialize()

            Dim l As OpenNETCF.Tapi.Line = t.CreateLine(0, OpenNETCF.Tapi.LINEMEDIAMODE.INTERACTIVEVOICE,

OpenNETCF.Tapi.LINECALLPRIVILEGE.MONITOR)

            Dim lgi As New GeneralInfo

            Dim buffer(512) As Byte
            'write size
            BitConverter.GetBytes(512).CopyTo(buffer, 0)

            If lineGetGeneralInfo(l.hLine, buffer) <> 0 Then
                Throw New System.ComponentModel.Win32Exception(System.Runtime.InteropServices.Marshal.GetLastWin32Error(), "TAPI

Error: " + System.Runtime.InteropServices.Marshal.GetLastWin32Error().ToString("X"))
            End If

            Dim serialsize As Integer = BitConverter.ToInt32(buffer, 36)
            Dim serialoffset As Integer = BitConverter.ToInt32(buffer, 40)
            lgi.SerialNumber = System.Text.Encoding.Unicode.GetString(buffer, serialoffset, serialsize)
            lgi.SerialNumber = lgi.SerialNumber.Substring(0, lgi.SerialNumber.IndexOf(Chr(0)))

            ' Dim gi As GeneralInfo = GetGeneralInfo(l)
            'lblManufacturer.Text = gi.Manufacturer
            'lblModel.Text = gi.Model
            ' lblRevision.Text = gi.Revision
            ' lblSubscriber.Text = gi.SubscriberNumber
            l.Dispose()
            t.Shutdown()
            Return lgi.SerialNumber