Cross Reference PixelCheckSum in window with BMP

[windowshopr 0]

I was wondering if anyone out there could help me figure out a problem I'm having scripting this function. What I want to do is use the pixelchecksum function to capture the pixels in a window (which I designate with class, or title) and then cross reference that checksum with a few bmp images that I have saved. When it finds a match then (carry on). Something tells me I would have to have each image open first if it can't get the info from the picture file itself, which is fine but not perfect. If this is not possible with autoit, would it be possible with c++ and if so how would I make it work with my autoit script? Thank you guys.

[Zibit 0]

yes it is possible with c++ but im quite sure i've seen something similar to this in the forum. search a little.