auto pixel color clicker

[WhiteLion]

I need something that can find a certian color in a window and click on it.
The color it needs to find should be easy to specify as the color needed to be selected changes often. If possible it would be nice to have like 4-5 colors that it will auto click on with an adjustable delay between clicks. Also it would be nice if it still worked on the window even if it loses focus or could somehow even work in the background.

[skwire]

PixelNotifier, by Skrommel: http://www.donationcoder.com/Software/Skrommel/index.html#PixelNotifier

Also it would be nice if it still worked on the window even if it loses focus or could somehow even work in the background.

For the pixel-related functions of AHK to work, the area you're searching for must be visible.  Furthermore, if you're trying to do this in a game, all bets are off.  Sometimes the pixel-related functions work and other times they don't.