PixelCheckSum help

[FattyXP]

I would like to use this very nifty tool to create a checksum of an area in an application. I'm using the script from the second post so it has a box for visual confirmation of where I'm checking.

http://www.autoitscript.com/forum/index.php?showtopic=64739

I'm very new to autoit, is there a way I can modify this script to also give me the upper and lower x/y values of the area I've selected to checksum?

I've tried to run this script, it seems 4 variables aren't declared before they are used, where would I put the declares for these variables in this code?

[FattyXP]

Alright, nevermind I'm extremely retarded. It already does this and to get the bottom x/ys I just add the size >.<