using GDI+ to display moving graph

I'm developing an application that I will use with a Labjack which will display digital and analog input from several inputs and display to several graphs. Currently I have 4 fixed PictureBox controls that display a square wave loaded from a text file. I'm loading all the values in a List and then I calculate the lines and put them in an array of PointF to be used as a parameter for DrawLInes(). Now I want to simulate random input from the Labjack digital IO and display it as a moving graph. How can I move part of the graph over and write to the new section using GDI+?
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mac-willConnect With a Mentor Commented:
This PID example in C# has a very simple graph that scrolls.

Mike TomlinsonConnect With a Mentor Middle School Assistant TeacherCommented:
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