|Occurs if null is passed as the points parameter or if an empty array is passed in.|
|Occurs if the array has more than 256 elements or a duplicate X value was found.|
|Occurs if the points array contains invalid values.|
At least one point must be provided, with a maximum of 256 points.
Each point value must have a range from 0.0 to 1.0. There can be no duplicate PointF.X values can be in the array.