That example shows how to capture keystrokes in LabVIEW. I believe the poster is asking for the other direction - to be able to send keystrokes to another programs from within LabVIEW. There are a couple of ways to do this, depending on your operating system, which you did not provide. If you're on a WIndows machine you can use the Windows API function SendInput. The other is to use an automation program like
AutoIt, which allows you to automate just about anything in Windows.