Winform绘图 写字 字体高度宽度

/// <summary>
        /// 画图
        /// </summary>
        /// <param name="contr">承载控件</param>
        /// <param name="bmp">目标图片</param>
        /// <param name="ranX">矩形X坐标</param>
        /// <param name="ranY">矩形Y坐标</param>
        /// <param name="ranW">矩形宽</param>
        /// <param name="ranH">矩形高</param>
        public void GraphicsImage(Control contr, System.Drawing.Bitmap bmp, int ranX, int ranY, int ranH, int ranW)
        {
            //定义缩小后的显示矩形区域 
            Rectangle compressionRectangle;

            //定义图片对象 
            Graphics myGraphics = contr.CreateGraphics();

            //创建矩形，并放入图片
            compressionRectangle = new Rectangle(ranX, ranY, ranW, ranH);
            myGraphics.DrawImage(bmp, compressionRectangle);

            //释放
            myGraphics.Dispose();
        }

        /// <summary>
        /// 写字
        /// </summary>
        /// <param name="contr">承载的控件</param>
        /// <param name="strMsg"></param>