C-Sharp - Schreiben in die Zwischenablage

using System;
using System.Text;
using System.IO.Ports;
using System.Windows;

namespace ConsoleApplication1
{
    class Program
    {
        [STAThread]
        static void Main(string args)
        {
            SerialPort mySerialPort = new SerialPort();
        
            Console.WriteLine("Please enter the Number of the COM Port of the Cardreader as seen in the Devicemanager.\n");  
            
            //COM ID has to be user supplied
            mySerialPort.PortName = "COM"+Console.ReadLine();  

            //Serialport properties. These are customized for the Cardreader
            mySerialPort.BaudRate = 9600;
            mySerialPort.Parity = Parity.None;
            mySerialPort.StopBits = StopBits.One;
            mySerialPort.DataBits = 8;
            mySerialPort.Handshake = Handshake.XOnXOff;

            //Eventhandler is fired twice everytime a card is read
            mySerialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);

            try
            {
                mySerialPort.Open();
            }
            catch
            {
                Console.WriteLine("Cannot open COM Port. Please check if the Port is correct and not already in use");  
                Console.WriteLine("Press any key to exit...");  
                Console.ReadKey();
                return;
            }

            Console.WriteLine("Program Ready");  
            Console.WriteLine("Read Card or press any key to exit");  
            Console.WriteLine();
            Console.ReadKey();
            mySerialPort.Close();
        }

        [STAThread]
        private static void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
        {
            SerialPort sp = (SerialPort)sender;
            Char Buffer = new Char[20];
            
            //Sleep is required to give the device enough time to buffer the complete Card ID
            System.Threading.Thread.Sleep(500);
            sp.Read(Buffer, 0, 20);
            

            String cardID = "";  

            //If the card is read multiple times in too short a time, the event fires again before the buffer is completely read. If that happens parts of the buffer are empty
            //This is to check if the buffer only has digits in it (which makes it a valid card ID)
            foreach (Char Ziffer in Buffer)
            {
                if (Ziffer == '0' || Ziffer == '1' || Ziffer == '2' || Ziffer == '3' || Ziffer == '4' || Ziffer == '5' || Ziffer == '6' || Ziffer == '7' || Ziffer == '8' || Ziffer == '9')  
                {
                    cardID = cardID + Ziffer.ToString();
                }
            }
            //when there are 20 digits in the ID, it is valid
            if (cardID.Length == 20)
            {
                Console.WriteLine(cardID);
                System.Windows.Clipboard.SetText(cardID);
            }
            //If there are some digits in the ID, but not 20, that is the result of a too fast re-read
            else if (cardID.Length != 0)
            {
                Console.WriteLine("Read Error {0}", cardID.Length);  
            }
            //on an OK read, on the second firing of the event, the buffer will be empty
            else if (cardID.Length == 0)
            {
                Console.WriteLine("Read OK");  
            }
            //Console.WriteLine("");  
            cardID = "";  
        }
    }
}

Current thread must be set to single thread apartment (STA) mode before OLE calls can be made.