The points array must contain at least 2 points, which define the first line. Each subsequent point defines the the end point of line segment. The first point is resused from the end point of the previous segment.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2