如何在C＃中以编程方式写入记事本

Question

I made a program that is an onscreen keyboard. The program has some keys like normal keyboard and a textarea in bottom side. I can click the button and corresponding letters appear in the text area.

But I want to write these letters into a notepad programmitically.

How can I do that?

Edit:

So here is my sample code. How the sendkey API should behave?

public Form1()
{
  var myProcess = new Process
  {
    StartInfo =
    {
      FileName = "Notepad.exe",
      WindowStyle = ProcessWindowStyle.Normal
    }
  };
  myProcess.Start();
  InitializeComponent();
}

private void BtnBClick(object sender, EventArgs e)
{
  SendKeys.Send("{ENTER}");
}

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

Answer 1

In the past i have build a similar solution by using SendKeys:

http://msdn.microsoft.com/en-us/library/system.windows.forms.sendkeys.send.aspx

And here is a demo on how to send key stokes to different windows without having a focus on those windows:

http://www.codeproject.com/Articles/18366/Sending-Keystrokes-to-another-Application-in-C