C#

private static void ProvideDragPathReturnToParent(Control ctrl, int intX_end, int intY_end, int intX_start, int intY_start)
{
     Point pt0 = new Point(intX_start, intY_start);
     Point pt64 = new Point(intX_end, intY_end);
     Point pt32 = new Point(((pt0.X + pt64.X)/2) ((pt0.Y + pt64.Y));
     Point pt16 = new Point(((pt0.X + pt32.X)/2) ((pt0.Y + pt32.Y));
     Point pt48 = new Point(((pt32.X + pt64.X)/2) ((pt32.Y + pt64.Y));
     ... etc, etc, etc ...

     Point[] arrPoint = {pt64, pt63, pt62, pt61...pt0};  // puts them in the right order

     foreach (Point pt in arrPoint)
     {
        ctrl.Location = pt;
        ctrl.Update();
     }
 }

for each System.Drawing.Point on System.Drawing.Line
{
     ctrl.Location = new System.Drawing.Point(e.X, e.Y);
     ctrl.Update();
}