ZXing条码图像配合Zebra打印

利用ZXing生成条码图像的主要代码段

using ZXing;
using ZXing.Common;

private void button1_Click(object sender, EventArgs e)
        {           
            string SN = textBox1.Text;
            if (string.IsNullOrEmpty(SN))
            {
                return;
            }
            BarcodeWriter writer = new BarcodeWriter()
            {
                Format = BarcodeFormat.DATA_MATRIX,
                Options =new EncodingOptions {
                    Width = 70,
                    Height = 70,
                    Margin = 2
                }
            };

            Bitmap QRcode = writer.Write(SN);

            Bitmap bitmap = new Bitmap(360, 80);           
            Graphics g = Graphics.FromImage(bitmap);

            Font font = new Font("Arial", 18);
            SolidBrush brush = new SolidBrush(Color.White);
            StringFormat format = new StringFormat();

            g.DrawString(SN.Substring(0,17), font, brush, new Point(0, 0), format);
            g.DrawString(SN.Substring(17, 13), font, brush, new Point(0, 24), format);
            g.DrawString(SN.Substring(30), font, brush, new Point(0, 48), format);
            g.DrawImage(QRcode, new Point(280, 0));

            font.Dispose();
            brush.Dispose();
            format.Dispose();

            pictureBox1.Image = bitmap;

            string data = ZebraUnity.BitmapToHex(bitmap, out int to, out int row);
            g.Dispose();

            string zpl = string.Format("~DGR:Temp0.GRF,{0},{1},{2}", to, row, data);
            StringBuilder cmd = new StringBuilder();
            cmd.Append(zpl);

            cmd.Append("^XA^LH100,30");
            cmd.Append(string.Format("^FO{0},{1}",top.Value,left.Value));
            cmd.Append("^XGR:Temp0.GRF,1,1^FS");
            cmd.Append(string.Format("^PQ{0}",numericUpDown1.Value));
            cmd.Append("^XZ");
            string cmdstr = cmd.ToString();
            ZPLHelper.PrintData(cmdstr);
        }