How do I make it so when the mouse is moved by the user, a picture box moves along with it? Say, if the mouse moves up, so does the picture, and if it moves down, so does the picture, etc... The same with left and right. Then how can I make it so if the mouse is moved beyond a certain point, or line, in the form the picture stops at the line, and if the left mouse button is clicked, another picture is shown?