工单打印

Infrastructure/Helper/PrintHelper.cs

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+
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.DrawingCore;
+using System.DrawingCore.Imaging;
+using ZXing;
+using ZXing.Common;
+
+
+
+namespace DOAN.Infrastructure.Helper;
+
+public class PrintHelper
+{
+    /// <summary>
+    /// 打印条形码
+    /// </summary>
+    /// <param name="message"></param>
+    /// <param name="width"></param>
+    /// <param name="height"></param>
+    /// <returns></returns>
+    public static byte[] CreateBarCode(string message, int width, int height)
+    {
+        if (string.IsNullOrWhiteSpace(message))
+        {
+            return null;
+        }
+        var w = new ZXing.OneD.Code128Writer();
+        BitMatrix b = w.encode(message, BarcodeFormat.CODE_128, width, height);
+        var zzb = new ZXing.ZKWeb.BarcodeWriter();
+        zzb.Options = new EncodingOptions()
+        {
+            Margin = 3,
+            PureBarcode = false
+        };
+        
+        Bitmap b2 = zzb.Write(b);
+      
+        
+        using (var ms = new System.IO.MemoryStream())
+        {
+            b2.Save(ms, ImageFormat.Png);
+            var bytes = ms.ToArray();
+
+            return bytes;
+        }
+    
+       
+    }
+
+
+}