ExcelDna.Integration.ExcelReference.GetRectangles C# (CSharp) 메소드

        private int[][] GetRectangles()
        {
            int[][] intRects = new int[rectangles.Count][];
            for (int i = 0; i < rectangles.Count; i++)
            {
                ExcelRectangle rect = rectangles[i];
                intRects[i] = new int[] {rect.RowFirst, rect.RowLast,
                    rect.ColumnFirst, rect.ColumnLast};
            }
            return intRects;
        }