Universal Text Sender 1.0

private void sendText()
        {
            int i = 0;
            foreach (string a in richTextBox1.Lines)
            {
                try
                {
                    Clipboard.SetText(richTextBox1.Lines[i]);
                }
                catch { }
                System.Threading.Thread.Sleep(100);
                SendKeys.SendWait("T");
                System.Threading.Thread.Sleep(200);
                SendKeys.Send("^v");
                System.Threading.Thread.Sleep(200);
                SendKeys.Send("{Enter}");
                System.Threading.Thread.Sleep(400);
                i++;
            }
        }

NOTE:
Well, I did it a bit the hard way...
You could replace the  int stuff with just the  a, since that is the text string X,x