C#使用ThoughtWorks.QRCode生成二维码

public bool CreateQrCode(string Content, string ImagePath, int QRCodeScale, System.Drawing.Color backgroundColor,System.Drawing.Color foreColor,string logoImage="")
             {
 
                 ThoughtWorks.QRCode.Codec.QRCodeEncoder encoder = new ThoughtWorks.QRCode.Codec.QRCodeEncoder();
                 encoder.QRCodeEncodeMode = ThoughtWorks.QRCode.Codec.QRCodeEncoder.ENCODE_MODE.BYTE;//编码方式(注意：BYTE能支持中文，ALPHA_NUMERIC扫描出来的都是数字)
                 encoder.QRCodeScale = QRCodeScale;//大小(值越大生成的二维码图片像素越高)
                 encoder.QRCodeVersion = 0;//版本(注意：设置为0主要是防止编码的字符串太长时发生错误)
                 encoder.QRCodeErrorCorrect = ThoughtWorks.QRCode.Codec.QRCodeEncoder.ERROR_CORRECTION.M;//错误效验、错误更正(有4个等级)
                 encoder.QRCodeBackgroundColor = backgroundColor;
                 encoder.QRCodeForegroundColor = foreColor;
 
                 System.Drawing.Bitmap bcodeBitmap = encoder.Encode(Content,Encoding.UTF8);
                 //FileStream fs = new FileStream(ImagePath, FileMode.OpenOrCreate);
                 bcodeBitmap.Save(ImagePath,System.Drawing.Imaging.ImageFormat.Jpeg);
                if (logoImage != "")
                {
                        System.Drawing.Bitmap btm = new System.Drawing.Bitmap(logoImage);
                    System.Drawing.Bitmap copyImage = new System.Drawing.Bitmap(btm,bcodeBitmap.Width / 4,bcodeBitmap.Height / 4);
                    System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bcodeBitmap);
                        int x = bcodeBitmap.Width / 2 - copyImage.Width / 2;
                        int y = bcodeBitmap.Height / 2 - copyImage.Height / 2;
                        g.DrawImage(copyImage, x, y);
                    bcodeBitmap.Save(ImagePath, System.Drawing.Imaging.ImageFormat.Jpeg);
                    //                    CombinImage(bcodeBitmap, "").Save(ImagePath);
                }
 
                IntPtr ip = bcodeBitmap.GetHbitmap();
                 bcodeBitmap.Dispose();
                 //fs.Close();
                 //fs.Dispose();
                 DeleteObject(ip);
                 GC.Collect();
//                 File.Delete(ImagePath);
                 return File.Exists(ImagePath);
             }

bool ss=CreateQrCode("https://www.baidu.com", "d:\\1.jpg", 20, System.Drawing.Color.White, System.Drawing.Color.Black, "d:\\logo.jpg");
if (ss == true)
{
    string result_base64 = ImgToBase64String("d:\\1.jpg", true);
    image1.ImageUrl = result_base64;
    return;   
}

public void ImageToPNG(string sourceFilename,string pngFilename,System.Drawing.Color backcolor)
{
 
     System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(sourceFilename);
     bmp.MakeTransparent(System.Drawing.Color.FromArgb(0, backcolor));
     bmp.Save(pngFilename,System.Drawing.Imaging.ImageFormat.Png);
}

ImageToPNG("d:\\logo.jpg", "d:\\logo.png", System.Drawing.Color.White);
bool ss=mb.CreateQrCode("https://www.baidu.com", "d:\\1.jpg", 20, System.Drawing.Color.White, System.Drawing.Color.Black, "d:\\logo.png");
if (ss == true)
{
    string result_base64 = mb.ImgToBase64String("d:\\1.jpg", true);
    image1.ImageUrl = result_base64;
    return;   
}