Connexion au périphérique via zkemkeeper.dll dans l'application Windows C# .net

Question

J'essaie de connecter des périphériques RFID et bio métriques en réseau, mon ip local est 192.168.1.24 et le périphérique RFID est 192.168.1.22, j'utilise Visual studio 12 un exemple d'application Windows. pour connecter cet appareil, mais il renvoie une erreur:

Unable to connect the device,error code = -201

private void btnConnect_Click(object sender, EventArgs e) 
{ 

    if (txtIP.Text.Trim() == "" || txtPort.Text.Trim() == "") 
    { 
     MessageBox.Show("IP and Port cannot be null", "Error"); 
     return; 
    } 
    int idwErrorCode = 0; 
    Cursor = Cursors.WaitCursor; 

    if (btnConnect.Text == "DisConnect") 
    { 
     axCZKEM1.Disconnect(); 

     this.axCZKEM1.OnVerify -= new zkemkeeper._IZKEMEvents_OnVerifyEventHandler(axCZKEM1_OnVerify); 
     this.axCZKEM1.OnAttTransactionEx -= new zkemkeeper._IZKEMEvents_OnAttTransactionExEventHandler(axCZKEM1_OnAttTransactionEx); 
     this.axCZKEM1.OnNewUser -= new zkemkeeper._IZKEMEvents_OnNewUserEventHandler(axCZKEM1_OnNewUser); 
     this.axCZKEM1.OnHIDNum -= new zkemkeeper._IZKEMEvents_OnHIDNumEventHandler(axCZKEM1_OnHIDNum); 
     this.axCZKEM1.OnWriteCard -= new zkemkeeper._IZKEMEvents_OnWriteCardEventHandler(axCZKEM1_OnWriteCard); 
     this.axCZKEM1.OnEmptyCard -= new zkemkeeper._IZKEMEvents_OnEmptyCardEventHandler(axCZKEM1_OnEmptyCard); 

     bIsConnected = false; 
     btnConnect.Text = "Connect"; 
     lblState.Text = "Current State:DisConnected"; 
     Cursor = Cursors.Default; 
     return; 
    } 

    axCZKEM1.PullMode = 1; 
    bIsConnected = axCZKEM1.Connect_Net(txtIP.Text.Trim(), Convert.ToInt32(txtPort.Text.Trim())); 


    if (bIsConnected == true) 
    { 
     btnConnect.Text = "DisConnect"; 
     btnConnect.Refresh(); 
     lblState.Text = "Current State:Connected"; 
     iMachineNumber = 1;//In fact,when you are using the tcp/ip communication,this parameter will be ignored,that is any integer will all right.Here we use 1. 

     if (axCZKEM1.RegEvent(iMachineNumber, 65535))//Here you can register the realtime events that you want to be triggered(the parameters 65535 means registering all) 
     { 
      this.axCZKEM1.OnVerify += new zkemkeeper._IZKEMEvents_OnVerifyEventHandler(axCZKEM1_OnVerify); 
      this.axCZKEM1.OnAttTransactionEx += new zkemkeeper._IZKEMEvents_OnAttTransactionExEventHandler(axCZKEM1_OnAttTransactionEx); 
      this.axCZKEM1.OnNewUser += new zkemkeeper._IZKEMEvents_OnNewUserEventHandler(axCZKEM1_OnNewUser); 
      this.axCZKEM1.OnHIDNum += new zkemkeeper._IZKEMEvents_OnHIDNumEventHandler(axCZKEM1_OnHIDNum); 
      this.axCZKEM1.OnWriteCard += new zkemkeeper._IZKEMEvents_OnWriteCardEventHandler(axCZKEM1_OnWriteCard); 
      this.axCZKEM1.OnEmptyCard += new zkemkeeper._IZKEMEvents_OnEmptyCardEventHandler(axCZKEM1_OnEmptyCard); 
     } 

     MyCountFinger = 1; 
     MyCountFace = 2; 

    } 
    else 
    { 
     axCZKEM1.GetLastError(ref idwErrorCode); 
     MessageBox.Show("Unable to connect the device,ErrorCode=" + idwErrorCode.ToString(), "Error"); 
    } 
    Cursor = Cursors.Default; 
} 

S'il vous plaît AIDENT merci à l'avance

Answer 1

 bool isConnected; 
     try { 
      isConnected = zkem.Connect_Net(ipAddr.Text, Convert.ToInt32(4370)); 
     } catch (Exception ext) { 
      Debug.WriteLine("Холбогдож чадсангүй" + ext); 
      zkem.GetLastError(ref idwErrorCode); 
      if (idwErrorCode != 0) { 
       getError(idwErrorCode); 
      } else { 
       MessageBox.Show("No data from terminal returns!", "Error"); 
      } 
      throw new Exception(); 
     } 

     if (isConnected) { //Here you can register the realtime events that you want to be triggered(the parameters 65535 means registering all) 
      this.btnRC.Enabled = false; 
      zkem.EnableDevice(1, true); 
      zkem.RegEvent(1, 65535); 
      this.zkem.OnAttTransactionEx += new zkemkeeper._IZKEMEvents_OnAttTransactionExEventHandler(onAttTransactionEx); 

      string sdwEnrollNumber = ""; 
      int idwVerifyMode = 0; 
      int idwInOutMode = 0; 
      int idwYear = 0; 
      int idwMonth = 0; 
      int idwDay = 0; 
      int idwHour = 0; 
      int idwMinute = 0; 
      int idwSecond = 0; 
      int idwWorkcode = 0; 

      Cursor = Cursors.WaitCursor; 
      zkem.EnableDevice(1, false);//disable the device 
      if (zkem.ReadGeneralLogData(1)) { //read all the attendance records to the memory 
       Debug.WriteLine("Trying to open connection"); 
       m_dbConnection.Open(); 
       Debug.WriteLine("Connection Opened"); 
       using (var command = new SQLiteCommand(m_dbConnection)) { 
        using (var transaction = m_dbConnection.BeginTransaction()) { 
         command.CommandText = String.Format("INSERT INTO `{0}` (`state`, `user_id`, `date`) VALUES(@state, @userID, @date)", prefix); 
         command.Prepare(); 
         while (zkem.SSR_GetGeneralLogData(1, out sdwEnrollNumber, out idwVerifyMode, 
           out idwInOutMode, out idwYear, out idwMonth, out idwDay, out idwHour, 
           out idwMinute, out idwSecond, ref idwWorkcode)) { //get records from the memory 

          DateTime datetime = new DateTime(idwYear, idwMonth, idwDay, idwHour, idwMinute, idwSecond); 
          int unixDate = (Int32)(datetime.Subtract(new DateTime(1970, 1, 1))).TotalSeconds; 
          try { 
           command.Parameters.AddWithValue("@state", idwInOutMode); 
           command.Parameters.AddWithValue("@userID", Convert.ToInt32(sdwEnrollNumber)); 
           command.Parameters.AddWithValue("@date", unixDate); 
          } catch (Exception ex) { 
           //Debug.WriteLine(ex.ToString() + Environment.NewLine + ex.StackTrace); 
          } 
          try { 
           command.ExecuteNonQuery(); 
           Debug.WriteLine("inserted: " + String.Format("{0}/{1}/{2} {3}:{4}:{5}.000", idwYear , idwMonth, idwDay, idwHour, idwMinute, idwSecond)); 
          } catch (SQLiteException ex) { 
           Debug.WriteLine(ex.ToString() + " "+ex.StackTrace); 
          } 
         } 
         transaction.Commit(); 
        } 
       } 
       m_dbConnection.Close(); 
       Debug.WriteLine("Connection Closed"); 
       Cursor = Cursors.Default; 
      } else { 
       Cursor = Cursors.Default; 
       zkem.GetLastError(ref idwErrorCode); 
       if (idwErrorCode != 0) { 
        getError(idwErrorCode); 
       } else { 
        MessageBox.Show("No data from terminal returns!", "Error"); 
       } 
      } 
      zkem.EnableDevice(1, true); //enable the device 
      Cursor = Cursors.Default; 

      logBox.Items.Add("Холбогдлоо"); 
     } 

Voici mon code de connexion. Je n'utilise que l'empreinte digitale. Cela fonctionne bien.