Autocad pan window in c#.net

Hi,

In my c#.net windows application, i require two pan windows.For example, left_pan & right_pan.

left_pan window is a smaller one,which contains a dwg image file and a rectangle will hover on it.

In right_pan window,i want to zoom the dwg area covered by rectangle in left_pan.

For more information, please find the attached jpg file, which is my requirement.

Please let me know, how can i do this.

Thanks,

Vijay