Imports DD_LIB_Standards Public Class clsLicense Private Shared lic_string As String Private Shared Sub Get_License(CLIENT_ID As Integer) Dim sql As String = String.Format("SELECT LICENSE_DDCBSEARCHER FROM TBDD_CLIENT WHERE GUID = {0}", CLIENT_ID) lic_string = clsDatabase.Execute_Scalar(sql) End Sub Public Shared Sub Refresh_Licence(CLIENT_ID As Integer) Try Dim _lizenzManager = New clsLicenseManager("#DigitalData35452!#", "") Get_License(CLIENT_ID) If lic_string = "" Then LICENSE_COUNT = 0 LICENSE_DATE = "1900-01-01" ERROR_INIT = "NO LICENSE" Exit Sub End If Dim licString = _lizenzManager.DecodeLicenseKey(lic_string) Dim split() = licString.ToString.Split("#") If lic_string <> "" Then LICENSE_COUNT = split(0) LICENSE_DATE = CDate(split(1)) End If If CDate(split(1)) < CDate(Now.ToShortDateString) Then MsgBox("Your license evaluated!" & vbNewLine & "Last valid date: " & split(1) & vbNewLine & "Please contact Digital Data.", MsgBoxStyle.Exclamation) LICENSE_EXPIRED = True LICENSE_COUNT = 0 ERROR_INIT = "NO LICENSE" End If Catch ex As Exception MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error in licensemanager:") End Try End Sub Public Shared Function license_is_Valid() If LICENSE_EXPIRED Then MsgBox("Your license has expired!" & vbNewLine & "Last valid date: " & LICENSE_DATE & vbNewLine & "Please contact Digital Data!", MsgBoxStyle.Exclamation) Return False Else : Return True End If End Function End Class