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I am currently making a mosaic for a Christmas prezzy. How can i use a scrollbar to display the pixels that are outside the window as i move the scrollbar across? A simple example is an image of 900px x 700px but the processing window in only 450px x 350px. The scrollbar will only be used to inspect the hidden portions of the image, to ensure that the effect works as it should across the whole image. I got the idea from The Coding Train Youtube channel. Link is Any help would be greatly appreciated.