how to send key strokes to the game.

I did the same thing as you said but still my code is not working to send keystrokes to the game.

here is my code.

namespace onsceeenkeyboard
{

    public partial class Form1 : Form
    {
        [return: MarshalAs(UnmanagedType.Bool)]
        [DllImport("user32", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
        public static extern bool SetForegroundWindow(IntPtr hwnd);
        protected override CreateParams CreateParams
        {
            get
            {

                CreateParams param = base.CreateParams;
                param.ExStyle |= 0x08000000;
                return param;
            }

        }
        public Form1()
        {
            InitializeComponent();

            Process[] Processes = Process.GetProcessesByName("DOSBox");
            IntPtr hWnd = IntPtr.Zero;
            Debug.Write("Processes: " + Processes.Length);
            foreach (Process p in Processes)
            {

                // do something

                hWnd = p.Handle;
                SetForegroundWindow(hWnd);
                // p.Kill();

            }

        }

        private void button1_Click(object sender, EventArgs e)
        {

                SendKeys.Send("{UP}");
        }
}
}