I have to continously update an image based on screen capture. So how can I memorize only the part of the image that changes from one picture to another (from one frame to another)(pixels?)... Think of a remote desktop. It's not a good thing to send a 200K desktop screenshot image to the client every time because you get a BIG delay and you get to low frames per second. Ideal is to send only the part of the image that changes.
I hope you understood what I an trying to do... So how can I detect the image changes between to frames? I can't loop through all pixel to see what pixel changed because it takes a BIG amount of time... I was wondering how , for example, TeamViewer has such a good refresh rate. I think it sends only the pixel information that changes from frame to frame. That's what I need so much.