/// <summary>
        /// 指定された改訂箇所に改訂線を引く。
        /// </summary>
        /// <param name="pos">改訂箇所</param>
        /// <param name="shapes">改訂線を引くシェイプ</param>
        protected static void paintLine(RevPos pos, Word.Shapes shapes)
        {
            float left = pos.fRange.Document.PageSetup.PageWidth
                - pos.fRange.Document.PageSetup.RightMargin + 10.0F;

            //改訂線追加
            Word.Shape line
                = shapes.AddLine(left, pos.fStart.fHeight, left, pos.fEnd.fHeight);
            line.Line.ForeColor.RGB = System.Drawing.Color.Black.ToArgb();

            //改訂記号追加
            Word.Shape textBox = shapes.AddTextbox(
                Microsoft.Office.Core.MsoTextOrientation.msoTextOrientationHorizontal,
                left,
                pos.fStart.fHeight,
                20, 20);

            textBox.Line.Visible
                = Microsoft.Office.Core.MsoTriState.msoFalse;
            textBox.Fill.Visible
                = Microsoft.Office.Core.MsoTriState.msoFalse;
            textBox.TextFrame.TextRange.Text = fRevMark;
            textBox.TextFrame.TextRange.Font.ColorIndex = Word.WdColorIndex.wdBlack;
        }