System.Object
C1.Win.C1Document.Util.C1Graphics.Clip
C1.Win.C1Document.Util.C1TextLayout.Line
System.ValueType
C1.Win.C1Document.Util.C1TextLayout.HitTestInfo
C1.Win.C1Document.Util.C1TextLayout.SplitPositionInfo
C1.Win.C1Document.Util.C1TextLayout.SplitPositionInfo.Piece
C1.Win.C1Document.Util.C1TextLayout.TextPos