因为条形码有不同的编码格式,使用时要注意编码格式。首先在 NuGet包管理器中引用下载BarcodeLib.dll文件。BarcodeLib.dll一维条码库,支持以下条码格式:UPC-A,UPC-E,UPC 2 Digit Ext,UPC 5 Digit Ext.,EAN-13,JAN-13,EAN-8,ITF-14,Codabar,PostNet,Bookland/ISBN,Code 11,Code 39,Code 39 Extended,Code 93,LOGMARS,MSI,Interleaved 2 of 5,Standard 2 of 5,Code 128,Code 128-A,Code 128-B,Code 128-C,Telepen ;
要执行的方法下:
System.Drawing.Image image; int width = 148, height = 55; string fileSavePath = AppDomain.CurrentDomain.BaseDirectory + "BarcodePattern.jpg"; if (File.Exists(fileSavePath)) File.Delete(fileSavePath); GetBarcode(height, width, BarcodeLib.TYPE.CODE128//编码格式 , "要编码的数据", out image, fileSavePath); pictureBox1.Image = Image.FromFile("BarcodePattern.jpg");
注意要改的参数
public static void GetBarcode(int height, int width, BarcodeLib.TYPE type, string code, out System.Drawing.Image image, string fileSaveUrl) { try { image = null; BarcodeLib.Barcode b = new BarcodeLib.Barcode(); b.BackColor = System.Drawing.Color.White;//图片背景颜色 b.ForeColor = System.Drawing.Color.Black;//条码颜色 b.IncludeLabel = true; b.Alignment = BarcodeLib.AlignmentPositions.LEFT; b.LabelPosition = BarcodeLib.LabelPositions.BOTTOMCENTER; b.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;//图片格式 System.Drawing.Font font = new System.Drawing.Font("verdana", 10f);//字体设置 b.LabelFont = font; b.Height = height;//图片高度设置(px单位) b.Width = width;//图片宽度设置(px单位) image = b.Encode(type, code);//生成图片 image.Save(fileSaveUrl, System.Drawing.Imaging.ImageFormat.Jpeg); } catch (Exception ex) { image = null; } }
借鉴于挣脱生命的束缚:http://www.cnblogs.com/qqhfeng/p/4240597.html
详细的讲解:http://www.barcodelib.com/net_barcode/main.html
二维码
适用于WinForm ,需要引用 zxing.dll文件 下载地址:http://pan.baidu.com/s/1ntNr79v
注意要引用的文件,空间
using com.google.zxing;
using COMMON = com.google.zxing.common;
代码如下:
private void BtnBm_Click(object sender, EventArgs e) //生成二维码 { if (string.IsNullOrEmpty(this.textBox1.Text.Trim())) { MessageBox.Show("请输入需要转换的信息!"); } else { string content = this.textBox1.Text;//待编码数据 try { int QSize = Int32.Parse(txtSize.Text);//二维码大小 string s = hScrollBar1.Value.ToString("X");//二维码透明度 string q = hScrollBar2.Value.ToString("X");//背景透明度 string Scolor = "0x" + s + txtYSe.Text;//二维码颜色 string Qcolor = "0x" + q + txtBys.Text;//背景颜色 COMMON.ByteMatrix byteMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, QSize, QSize); Bitmap bt = toBitmap(byteMatrix, Scolor, Qcolor); pictureBox1.Image = bt; } catch (Exception ex) { MessageBox.Show(ex.Message); } } } public static Bitmap toBitmap(COMMON.ByteMatrix matrix, string scolor, string qcolor) { int width = matrix.Width; int height = matrix.Height; Bitmap bmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb); for (int x = 0; x < width; x++) { for (int y = 0; y < height; y++) { bmap.SetPixel(x, y, matrix.get_Renamed(x, y) != -1 ? ColorTranslator.FromHtml(scolor) : ColorTranslator.FromHtml(qcolor)); } } return bmap; }private void BtnSave_Click(object sender, EventArgs e) //保存 { Image img = pictureBox1.Image; if (img != null) { SaveFileDialog sFD = new SaveFileDialog(); sFD.Filter = "*.png|*.png"; if (sFD.ShowDialog() == DialogResult.OK) { Bitmap bmap = new Bitmap(img, img.Width, img.Height); bmap.Save(sFD.FileName); MessageBox.Show("保存成功!"); } } else { MessageBox.Show("您还没有生成二维码!"); } } private void BtnJm_Click(object sender, EventArgs e) //读码解码 { if (this.openFileDialog1.ShowDialog() != DialogResult.OK) { return; } Bitmap bmap; try { Image img = Image.FromFile(this.openFileDialog1.FileName); bmap = new Bitmap(img); if (bmap == null) { MessageBox.Show("解码错误,请确保二维码图片已打开!"); return; } } catch { MessageBox.Show("解码错误,请确保图片格式正确!"); return; } LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height); com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source)); Result result; try { result = new MultiFormatReader().decode(bitmap); } catch { string str = "解码失败,失败原因可能是:" + "\n"; str += "1.您打开的图片非二维码图片!" + "\n"; str += "2.您打开的二维码图片背景色太深!" + "\n"; str += "3.您打开的二维码图片二维码和背景色太接近!" + "\n"; MessageBox.Show(str); return; } textBox1.Text = result.Text; }
文章参考:https://www.cnblogs.com/xuhang/p/3831776.html,大家有时间可以去看看!