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"); 

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; }
}

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;}