Heres a function for searching for a bitmap within another bitmap. The heart of it is written assembly (source included) and working pretty quick I feel. I have included an example which is pretty basic and should be easily enough for anyone to get the concept.
You will be given a small blue window that will take a screencapture of that size:
It will then take a full screenshot and highlight all locations that it found
Please let me know if you have any issues or