What's the difference between using a LaunchAgent and checking "Open at Login" in Dock? And how do I access the latter programmatically?

Question

What's the difference between using a LaunchAgent and checking "Open at Login" in Dock? And how do I access the latter programmatically?

Answer 1

Functionally launch agents have more options. They use the launchd process to run them. "Open at Login" basically adds the application to the users startup items. Adding something to a user's startup items requires applescript code. You can google for that as that's how I found it when I needed it.