SmoothingMode
Specifies whether smoothing (antialiasing) is applied to lines and curves and the edges of filled areas.
AntiAlias = 4
Specifies antialiased rendering.
Default = 0
Specifies no antialiasing.
HighQuality = 2
Specifies antialiased rendering.
HighSpeed = 1
Specifies no antialiasing.
Invalid = -1
Specifies an invalid mode.
None = 3
Specifies no antialiasing.