Specify the radius of points.
Point radius in 1/16 pixel. range 16 to 8191, the initial value is 16
Sets the size of drawn points. The width is the distance from the center of the point to the outermost drawn pixel, in
units of 1/16 pixels. The valid range is from 16 to 8191 with respect to 1/16th pixel unit.
' The second point is drawn with a width of 160, for a 10 pixel radius
Vertex2II 40, 30, 0, 0
Vertex2II 120, 90, 0, 0