Web Service opens Notepad.exe - now how to send keystrokes?

I have a nonsensical web service (just playing around -- having fun, learning how it works) that opens Notepad.exe

Once I open Notepad.exe -- how do I send keystrokes programmatically?  Web services / web apps don't seem to know about SendKeys.



using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;

namespace WebService1
{
    /// <summary>
    /// Summary description for Service1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
    // [System.Web.Script.Services.ScriptService]
    public class Service1 : System.Web.Services.WebService
    {
        [WebMethod]
        public string ReturnSomeString()
        {

            System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo("C:\\Windows\\System32\\notepad.exe");


           
            System.Diagnostics.Process pp = new System.Diagnostics.Process();

            pp.StartInfo = psi;

            pp.Start();
           
//generate a delay so i can "notice" that Notepad opened...

            for(int i = 0;i < 20000; i++)
            {
                for(int j = 0;j < 20000; j++)
                {
                   
                }

            }

            pp.Kill();

           

            string sc = "blah";

            return sc;
        }
    }
}

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