PixelOffsetMode
Specifies how pixels are offset during rendering.
Default = 0
Specifies the default mode.
Half = 4
Specifies that pixels are offset by -.5 units, both horizontally and vertically, for high speed antialiasing.
HighQuality = 2
Specifies high quality, low speed rendering.
HighSpeed = 1
Specifies high speed, low quality rendering.
Invalid = -1
Specifies an invalid mode.
None = 3
Specifies no pixel offset.