click to start taking a pic and click again to finish (area in rectangle is picture) make sure to start from top-right to bottom-left. press space to see your image, say which photo (1, 2, 3, etc.) you want to see press space again to hide
btw the picture is always stretched to be 400x300 also it takes a little while for it to take a photo (wait for the rectangle is disappear) this is so cool it scans the area of your picture and saves it ballie by @BallieTheBall