public Contour_USB() { ID = 8; VID = Int32.Parse("1A79", System.Globalization.NumberStyles.HexNumber); MeterDescription = "Bayer Contour USB"; //load supported pids PopulateSupportedPIDs(); Port = new UsbLibrary.UsbHidPort(); Port.OnSpecifiedDeviceRemoved += Port_OnSpecifiedDeviceRemoved; Port.OnSpecifiedDeviceArrived += Port_OnSpecifiedDeviceArrived; }