Step 1 - Create a Project
Step 2 - Create a button on your GUI
Step 3 - Double click the button
Step 4 - Type this code below (it opens notepad)
Process.Start("Notepad.exe")
Step 5 - Enter this code below (sends the keys "abcd" to notepad and demostrates how to use non-letter/number keys (like enter, you need to include the brackets {})
SendKeys.Send("abcd") SendKeys.Send({Enter})
Step 6 - Done
Step 7 - This tutorial isn't to useful but there's much more you can do with SendKeys...