使用zkemkeeper从zkteco设备获取实时事件的指纹字节

Question

嗨，我正在研究用C＃开发的应用程序 使用zkemkeeper sdk和Machine是Zkteco TFT

一切正常，所有事件都正常，但是当有人要擦手指时我需要绕过设备验证，我想获取手指模板并希望从数据库SQL进行验证

zkemkeeper.CZKEM objzkem_OnFinger = new zkemkeeper.CZKEM();

bool isconnected = objzkem_OnFinger.Connect_Net("192.168.10.6", Convert.ToInt32("4370"));

if (objzkem_OnFinger.RegEvent(1, 65535))
{
 objzkem_OnFinger.OnFinger += new zkemkeeper._IZKEMEvents_OnFingerEventHandler(axCZKEM1_OnFinger);                
}


and want to get finger when some one swipe his finger on scanner


private void axCZKEM1_OnFinger()
      {
          // label1.Text = "OK";
          byte[] TmpData = new byte[20000];
          int with = 500;
          int lenth = 800;
          bool fulimage = false;
          string path = @"F:\3.png";
          byte a = 1 ;
        bool result2 =   objzkem_OnFinger.EnableDevice(1, true);
          bool result = objzkem_OnFinger.CaptureImage(fulimage, ref with, ref lenth, ref a, path);

      }

but capture image always return false