BS2LicenseBlob licenseBlob = Util.AllocateStructure<BS2LicenseBlob>();

	Console.WriteLine("Try adding a license");

	Console.WriteLine("Enter the license type. (0: None, 1: Visual QR)");
	Console.Write(">>>> ");
	licenseBlob.licenseType = Util.GetInput((UInt16)BS2LicenseType.VISUAL_QR_MASK);

	Console.WriteLine("How many devices do you want to register?");
	Console.Write(">>>> ");
	licenseBlob.numOfDevices = Util.GetInput((UInt16)1);

	if (0 < licenseBlob.numOfDevices)
	{
		// Device ID
		List<UInt32> listID = new List<UInt32>();
		UInt32 tempID = 0;
		for (UInt16 idx = 0; idx < licenseBlob.numOfDevices; idx++)
		{
			Console.WriteLine("  Slave device ID #{0}", idx);
			Console.Write("  >> ");
			tempID = (UInt32)Util.GetInput();
			listID.Add(tempID);
		}

		byte[] byteListID = listID.SelectMany(BitConverter.GetBytes).ToArray();
		int byteCount = Marshal.SizeOf(typeof(UInt32)) * licenseBlob.numOfDevices;

		licenseBlob.deviceIDObjs = Marshal.AllocHGlobal(byteCount);
		Marshal.Copy(byteListID, 0, licenseBlob.deviceIDObjs, byteCount);

		// License data
		Console.WriteLine("Enter the path and name of license.");
		Console.Write(">>>> ");
		string licensePath = Console.ReadLine();
		if (!File.Exists(licensePath))
		{
			Console.WriteLine("Invalid license Path");
			return;
		}

		if (Util.LoadBinary(licensePath, out licenseBlob.licenseObj, out licenseBlob.licenseLen))
		{
			IntPtr resultObj = IntPtr.Zero;
			UInt32 numOfResult = 0;

			BS2ErrorCode result = (BS2ErrorCode)API.BS2_EnableDeviceLicense(sdkContext, deviceID, ref licenseBlob, out resultObj, out numOfResult);
			Marshal.FreeHGlobal(licenseBlob.licenseObj);

			if (BS2ErrorCode.BS_SDK_SUCCESS != result)
			{
				Console.WriteLine("Got error({0}).", result);
			}
			else
			{
				IntPtr curResult = resultObj;
				int resultSize = Marshal.SizeOf(typeof(BS2LicenseResult));
				for (UInt32 idx = 0; idx < numOfResult; idx++)
				{
					BS2LicenseResult item = (BS2LicenseResult)Marshal.PtrToStructure(curResult, typeof(BS2LicenseResult));
					print(item, idx);
					curResult += resultSize;
				}

				API.BS2_ReleaseObject(resultObj);
			}
		} // if (Util.LoadBinary(licensePath, out licenseBlob.licenseObj, out licenseBlob.licenseLen))
	} // if (0 < licenseBlob.numOfDevices)

	Marshal.FreeHGlobal(licenseBlob.deviceIDObjs);