BS2_QueryDeviceLicense

+ v2.9.1 Get the device license activation/deactivation status of the device connected as master-slave.

This feature is available only on devices that support the device license activation feature, and the devices that support the feature are listed below.

Supported devices	Firmware
XS2-Finger	V1.2.0
XS2-Card	V1.2.0
BS3	V1.1.0

Declaration

#include "BS_API.h"

int BS2_QueryDeviceLicense(void* context, uint32_t deviceId, BS2_LICENSE_TYPE licenseType, BS2LicenseResult** outResultObj, uint32_t* outNumOfResult);

Info

See BS2LicenseResult Structure

Parameter

• [In] context : Context

• [In] deviceId : Device Identifier

• [In] licenseType : Device License Type

  Value	Description
  0x0000	None
  0x0001	Visual QR

• [Out] outResultObj : Pointer to structure to receive device license activation result

• [Out] outNumOfResult : Number of device license activation result structures

Info

The outResultObj parameter must be used and then returned memory to the system via the BS2_ReleaseObject function.

Return Value

If successfully done, BS_SDK_SUCCESS will be returned. If there is an error, the corresponding error code will be returned.

Sample Code

C++

int getDeviceLicense(void* context, BS2_DEVICE_ID id)
{
   DeviceControl dc(context);
   BS2LicenseBlob licenseBlob = { 0, };
   vector<BS2LicenseResult> licenseResult;
   int sdkResult = BS_SDK_SUCCESS;

   BS2_LICENSE_TYPE licenseType = (BS2_LICENSE_TYPE)Utility::getInput<uint32_t>("Enter the license type. (0: None, 1: Visual QR)");
   sdkResult = dc.queryDeviceLicense(id, licenseType, licenseResult);
   if (BS_SDK_SUCCESS == sdkResult)
      DeviceControl::print(licenseResult);

   return sdkResult;
}

int DeviceControl::queryDeviceLicense(BS2_DEVICE_ID id, BS2_LICENSE_TYPE licenseType, vector<BS2LicenseResult>& licenseResult)
{
   BS2LicenseResult* result = NULL;
   uint32_t numOfResult = 0;
   int sdkResult = BS2_QueryDeviceLicense(context_, id, licenseType, &result, &numOfResult);
   if (BS_SDK_SUCCESS != sdkResult)
   {
      TRACE("BS2_QueryDeviceLicense call failed: %d", sdkResult);
      return sdkResult;
   }

   licenseResult.clear();
   for (uint32_t idx = 0; idx < numOfResult; idx++)
   {
      licenseResult.push_back(result[idx]);
   }

   return sdkResult;
}

C#

   Console.WriteLine("Trying to get a license");

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

   IntPtr resultObj = IntPtr.Zero;
   UInt32 numOfResult = 0;

   BS2ErrorCode result = (BS2ErrorCode)API.BS2_QueryDeviceLicense(sdkContext, deviceID, licenseType, out resultObj, out numOfResult);

   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);
   }