Run Command After Monitor Powers Down

[HoppaLong]

How many apps are there that will control the state of your monitor? Ten thousand or ten million, I'm not sure!

I need a little applet that I can add to a script. Let's say you set your monitor to turn off after 15 or 20 minutes

of system inactivity. I'm looking for something that will detect when your monitor powers down and run a

command. It could be anything like launching an executable process or a simulated key press (you know,

F1, F2, etc.).

All I can find while Googling are apps that will shutdown your computer and/or monitor at a specific time,

or after a download completes, etc. I'm almost certain what I'm looking for exists, I just can't find it.

Maybe I'm using the wrong terms when I search.