C#通过ZXing 打印条形码

1、通过nuget 安装 Zxing 插件并引用

using ZXing;
using ZXing.QrCode.Internal;
using ZXing.Common;
using ZXing.QrCode;

2、演示界面

 3、打印效果

 4、主要代码

双击 printDocument1控件，编写如下示例代码：

        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            string batchNo;
            batchNo = textBox1.Text;
            Bitmap btm  = BarCode(batchNo);
            int num1 = 200;
            //标签文字开始X点
            //文字从第几列开始打，横坐标
            int x1 = 280;
            //文字开始打印的高度
            int y1 = 111;
            int yStep = 50;  //行间距
            Pen pen = new Pen(Color.Black, 1f);
            Font font = new Font("宋体", 17f, FontStyle.Bold);
            //黑色笔
            Brush fontColor = Brushes.Black;
            // 绘制到屏幕上。
            e.Graphics.DrawString(textBox1.Text, font, fontColor, x1, y1);
             x1 = x1 + 100;
　　　　　　　　//消除锯齿
            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
            e.Graphics.DrawImage(btm, x1,y1, btm.Width, btm.Height);

        }

　　“打印”按钮的事件，就是调用printDocument1的print()函数 

 private void button1_Click(object sender, EventArgs e)
        {
            printDocument1.Print();
        }

条形码生成函数 

 //根据文字生成一维条形码函数 
        public static Bitmap BarCode(string text)
        {
            BarcodeWriter writer = new BarcodeWriter();
            writer.Format = BarcodeFormat.CODE_128;
            EncodingOptions options = new EncodingOptions()
            {
                Width = 150,
                Height = 50,
                Margin = 0,
                //true:一维码下方不显示文字  false:显示文字，默认是显示 
                PureBarcode = false
            };
            writer.Options = options;
            Bitmap map = writer.Write(text);
            return map;
        }