zxing.net 0.16.8生成二维码，读取二维码，读取多个二维码 c#

更新到新版本，报错。老版本的函数发现少了很多。把少的文件添加到目录中，发现可以用了。

 

using System.Diagnostics;
using System.Text;
using ZXing;
using ZXing.Common;
using ZXing.Multi.QrCode;

namespace WinFormsApp4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        /// 

        /// 生成二维码图片
        /// 
        /// 要生成二维码的字符串
        /// 二维码图片宽度
        /// 二维码图片高度
        /// 
        private Bitmap? GetQRCodeByZXingNet(String strMessage, Int32 width, Int32 height)
        {
            Bitmap? result = null;
            try
            {
                var barCodeWriter = new BarcodeWriter();
                barCodeWriter.Format = BarcodeFormat.QR_CODE;
                barCodeWriter.Options.Hints.Add(EncodeHintType.CHARACTER_SET, "UTF-8");
                barCodeWriter.Options.Hints.Add(EncodeHintType.ERROR_CORRECTION, ZXing.QrCode.Internal.ErrorCorrectionLevel.H);
                barCodeWriter.Options.Height = height;
                barCodeWriter.Options.Width = width;
                barCodeWriter.Options.Margin = 0;
                var bm = barCodeWriter.Encode(strMessage);
                result = barCodeWriter.Write(bm);
            }
            catch (Exception ex)
            {
                return null;
            }
            return result;
        }
        /// 

        /// 解码二维码
        /// 
        /// 待解码的二维码图片
        /// 扫码结果
        private Result DecodeQrCode(Bitmap barcodeBitmap)
        {
            var reader = new BarcodeReader();
            reader.Options.CharacterSet = "UTF-8";
            var result = reader.Decode(barcodeBitmap);
            return null??result;
        }
        /// 

        /// 解码多个二维码
        /// 
        /// 待解码的多个二维码图片
        /// 扫码结果
        private Result[] DecodeQRMulti(Bitmap bitmap)
        {
            var qc = new QRCodeMultiReader();
            LuminanceSource source = new BitmapLuminanceSource(bitmap);
            BinaryBitmap binarybitmap = new BinaryBitmap(new HybridBinarizer(source));
            IDictionary hints = new Dictionary();
            hints.Add(DecodeHintType.CHARACTER_SET, "UTF-8");
            hints.Add(DecodeHintType.TRY_HARDER, "3");
            Result[] rr = qc.decodeMultiple(binarybitmap, hints);
            return null??rr ;
        }
        private void button1_Click(object sender, EventArgs e)
        {
       
            Bitmap bitmap = (Bitmap)Image.FromFile(Environment.CurrentDirectory + "\\" + "dm.bmp");
            pictureBox1.Image = bitmap;
            var re = DecodeQRMulti(bitmap);
            if (re == null) { return; }
            StringBuilder sb = new StringBuilder();
            foreach (var i in re)
            {
                sb.Append(i.Text + i.ResultPoints[0] + i.ResultPoints[1] + i.ResultPoints[2] + "\r\n");
            }
         //   string bb = stopwatch.ElapsedMilliseconds.ToString();//3ms
            MessageBox.Show(sb.ToString());
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Bitmap bitmap = (Bitmap)Image.FromFile(Environment.CurrentDirectory + "\\" + "dm2.bmp");
            pictureBox1.Image = bitmap;
            var re = DecodeQrCode(bitmap);
            if (re == null) { return; }
            MessageBox.Show(re.Text+re.ResultPoints[0]+ re.ResultPoints[1]+ re.ResultPoints[2]);
        }

        private void button3_Click(object sender, EventArgs e)
        {
          var img=  GetQRCodeByZXingNet("1234",200,200);
          pictureBox1.Image = img;
        }
    }
}

生成二维码，读取二维码，读取多个二维码。

源码下载：

zxing.net最新版生成二维码，读取二维码，读取多个二维码。-C#文档类资源-CSDN文库