taultunleashed

I've been searching Google and such but can't seem to find a way. I have several uses for a function like this...

What I need is a way to search for a pixelchecksum (Created with PixelChecksum) in a specified area (Or the entire screen)
Built into autoit is just searching for one pixel. Maybe looking for a pixel in the checksum and matching the checksum around it?

I can't manage to get it to work however. Does anyone have any ideas? Help appreciated