Hi!

Need 2 know how to compare 2 images.
Let's say I take a screenshot and puts it in a picturebox named Picture1 using BitBlt.
Then I take a new screenshot, but this time I've opened the Start-Menu. I place the new screenshot in the same picturebox using the SRCINVERT to get the differens from the 2 screens. Everything that was the same becomes black, and the changes get wierd colors. I want to crop the updated area, and get the X and Y coordinate of the top-left corner where it was before getting cropped.
I'm sending this image to another computer and want to have the coordinates, so that the other computer can place the picture at it's old place and so, rebuild the screenshot. I only want to send the little piece that is updated to gain speed.

Anyone who might help me?