PenAlignment
Specifies the alignment of a Pen object in relation to the theoretical, zero-width line.
Center = 0
Specifies that the Pen object is centered over the theoretical line.
Inset = 1
Specifies that the Pen is positioned on the inside of the theoretical line.
Left = 3
Specifies the Pen is positioned to the left of the theoretical line.
Outset = 2
Specifies the Pen is positioned on the outside of the theoretical line.
Right = 4
Specifies the Pen is positioned to the right of the theoretical line.