// 1.设置条形码规格
EncodingOptions encodeOption = new EncodingOptions();
encodeOption.Height = 130; // 必须制定高度、宽度
encodeOption.Width = 240; 
// 2.生成条形码图片并保存
ZXing.BarcodeWriter wr = new BarcodeWriter();
wr.Options = encodeOption;
wr.Format = BarcodeFormat.EAN_13; // 条形码规格：EAN13规格：12（无校验位）或13位数字
Bitmap img = wr.Write(this.ContentTxt.Text); // 生成图片
string filePath = System.AppDomain.CurrentDomain.BaseDirectory + "\\EAN_13-" + this.ContentTxt.Text + ".jpg";
img.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg); 

// 1.设置读取条形码规格
DecodingOptions decodeOption = new DecodingOptions();
decodeOption.PossibleFormats = new List<BarcodeFormat>() { 
 BarcodeFormat.EAN_13,
};
// 2.进行读取操作
ZXing.BarcodeReader br = new BarcodeReader();
br.Options = decodeOption;
ZXing.Result rs = br.Decode(this.barCodeImg.Image as Bitmap);
if (rs == null)
{
 this.ContentTxt.Text = "读取失败";
 MessageBox.Show("读取失败");
}
else
{
 this.ContentTxt.Text = rs.Text;
 MessageBox.Show("读取成功，内容：" + rs.Text);
} 

// 1.设置QR二维码的规格
ZXing.QrCode.QrCodeEncodingOptions qrEncodeOption = new ZXing.QrCode.QrCodeEncodingOptions();
qrEncodeOption.CharacterSet = "UTF-8"; // 设置编码格式，否则读取'中文'乱码
qrEncodeOption.Height = 200;
qrEncodeOption.Width = 200;
qrEncodeOption.Margin = 1; // 设置周围空白边距
// 2.生成条形码图片并保存
ZXing.BarcodeWriter wr = new BarcodeWriter();
wr.Format = BarcodeFormat.QR_CODE; // 二维码
wr.Options = qrEncodeOption;
Bitmap img = wr.Write(this.ContentTxt.Text);
string filePath = System.AppDomain.CurrentDomain.BaseDirectory + "\\QR-" + this.ContentTxt.Text + ".jpg";
img.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg); 

// 1.设置读取条形码规格
DecodingOptions decodeOption = new DecodingOptions();
decodeOption.PossibleFormats = new List<BarcodeFormat>() { 
 BarcodeFormat.QR_CODE,
;
// 2.进行读取操作
ZXing.BarcodeReader br = new BarcodeReader();
br.Options = decodeOption;
ZXing.Result rs = br.Decode(this.barCodeImg.Image as Bitmap);
if (rs == null)
{
 this.ContentTxt.Text = "读取失败";
 MessageBox.Show("读取失败");
}
else
{
 this.ContentTxt.Text = rs.Text;
 MessageBox.Show("读取成功，内容：" + rs.Text);
} 

// 1.设置QR二维码的规格
ZXing.QrCode.QrCodeEncodingOptions qrEncodeOption = new ZXing.QrCode.QrCodeEncodingOptions();
qrEncodeOption.CharacterSet = "UTF-8"; // 设置编码格式，否则读取'中文'乱码
qrEncodeOption.Height = 200;
qrEncodeOption.Width = 200;
qrEncodeOption.Margin = 1; // 设置周围空白边距
// 2.生成条形码图片
ZXing.BarcodeWriter wr = new BarcodeWriter();
wr.Format = BarcodeFormat.QR_CODE; // 二维码
wr.Options = qrEncodeOption;
Bitmap img = wr.Write(this.ContentTxt.Text);
// 3.在二维码的Bitmap对象上绘制logo图片
Bitmap logoImg = Bitmap.FromFile(System.AppDomain.CurrentDomain.BaseDirectory + "\\logo.jpg") as Bitmap;
Graphics g = Graphics.FromImage(img);
Rectangle logoRec = new Rectangle(); // 设置logo图片的大小和绘制位置
logoRec.Width = img.Width / 6;
logoRec.Height = img.Height / 6;
logoRec.X = img.Width / 2 - logoRec.Width / 2; // 中心点
logoRec.Y = img.Height / 2 - logoRec.Height / 2;
g.DrawImage(logoImg, logoRec);
// 4.保存绘制后的图片
string filePath = System.AppDomain.CurrentDomain.BaseDirectory + "\\QR-" + this.ContentTxt.Text + ".jpg";
img.Save(filePath, System.Drawing.Imaging.ImageFormat.Jpeg);