This .NET class wraps the AcDbPolyline::SegType ObjectARX class. This enumeration identifies the different types of line segments that can make up a polyline.

Public Enum SegmentType
  Line
  Arc
  Coincident
  Point
  Empty
End Enum

public enum SegmentType {
  Line,
  Arc,
  Coincident,
  Point,
  Empty
}