ICSharpCode.TextEditor.Document.DefaultSelection.ContainsPosition C# (CSharp) Méthode

        public bool ContainsPosition(Point position)
        {
            if (this.IsEmpty)
                return false;
            return startPosition.Y < position.Y && position.Y  < endPosition.Y ||
                startPosition.Y == position.Y && startPosition.X <= position.X && (startPosition.Y != endPosition.Y || position.X <= endPosition.X) ||
                endPosition.Y == position.Y && startPosition.Y != endPosition.Y && position.X <= endPosition.X;
        }