ZXing <FNC> GS1 条码分隔符

ZXing <FNC> Separator for GS1 bar code

我试图在我的 ZXing 条形码中放置 <FNC1> 分隔符,我不确定这些应该如何格式化为字符串值。我有

BarcodeWriterPixelData writer = new BarcodeWriterPixelData()
{
    Format = BarcodeFormat.CODE_128,
    Options = new ZXing.Common.EncodingOptions
    {
        Width = 554,
        Height = 120
    }
};
var pixelData = writer.Write("<FNC1>42011111<FNC1>92612123456789000000155015");

using (var bitmap = new Bitmap(pixelData.Width, pixelData.Height, System.Drawing.Imaging.PixelFormat.Format32bppRgb))
{
    using (var ms = new System.IO.MemoryStream())
    {
        var bitmapData = bitmap.LockBits(new Rectangle(0, 0, pixelData.Width, pixelData.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
        try
        {
            // we assume that the row stride of the bitmap is aligned to 4 byte multiplied by the width of the image   
            System.Runtime.InteropServices.Marshal.Copy(pixelData.Pixels, 0, bitmapData.Scan0, pixelData.Pixels.Length);
        }
        finally
        {
            bitmap.UnlockBits(bitmapData);
        }

        // PNG or JPEG or whatever you want
        bitmap.SetResolution(300, 300);
        bitmap.Save(@"C:\Users\user\Desktop\newBarcode.jpeg", System.Drawing.Imaging.ImageFormat.Jpeg);
    }
}

此代码生成此图像

这完全是 <FNC1>42011111<FNC1>92612123456789000000155015我如何插值和插入 FNC1 值?我尝试使用在此解决方案中找到的“]C1”:

https://github.com/zxing/zxing/issues/475

但是没有用。任何帮助将不胜感激。

Unicode 字符“\u00f1”而不是“”应该有效。