public static IBarcodeScanner Create() { DeviceHardware dhw = new DeviceHardware(); var d = DeviceHardware.Version; switch (d) { case DeviceHardware.HardwareVersion.iPod2G: case DeviceHardware.HardwareVersion.iPod3G: return(LineaPro.GetInstance()); break; default: //return RedLaserMT.GetInstance(); return(null); } }