Biomatric finger print connection code in asp.net(c#) toPC

Question

Biomatric finger print connection code in asp.net(c#) to system:-

1Q- please send me connection code of Biomatric finger print machin  to sysytem in c#(asp.net) .?
2Q-what is  connection  source code  of  Biomatric fingerprint to system?
3Q-send me connection code of Biomatric fingerprint  in c#(asp.net)?


 my connection code->

Problem – Device can not connect to system

Error -

Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))

  

program--->

   public partial class Form1 : Form
    {
      
        bool checkcoon1 = true;
        bool checkcon2 = false;
        public Form1()
        {
            InitializeComponent();
        }

        public void connect()
        {
            SBXPC ob = new SBXPC();
          
            int dwMachinNumber=1;
            string lpipAddress="192.168.000.224";
            int dwportnumber=5005;
            int dwpassword=0;
            checkcoon1 = ob.ConnectTcpip(dwMachinNumber,lpipAddress,dwportnumber,dwpassword);
            if(checkcoon1==true)
            {
                MessageBox.Show("connection successful estabalished");
            }
            else
            {
                MessageBox.Show("connection cannot estabalished");
            }

             }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {
           
        }

        private void button1_Click(object sender, EventArgs e)
        {
            connect();
        }
    }
}

Problem – Device can not connect to system

Error -

Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))