custom control to select coordinates on a picturebox or panel?

custom control to select coordinates on a picturebox or panel?

I'm working on an application to display DICOM Files and now I'm getting
into MPR. Is there a control that will allow you to have like a line in a
picturebox or panel like this:
http://www.vcreatelogic.com/docs/gcf-2.6.0/html/MPRView.jpg The intention
is to move that line and perform some stuff while is moving, so I
basically need some sort of control or custom control (or maybe a custom
icon) that will allow the user to see where he's moving in the picturebox
as he moves the mouse.
Thank you!