C#使用ZXing.Net实现识别二维码和条码

    var reader = new BarcodeReader();
    var result = reader.Decode((Bitmap)pictureBox1.Image);
    if (result != null)
    {
        lblMessage.Text = result.Text;
    }
    else
    {
        lblMessage.Text = "None";
    }

// create a barcode reader instance
IBarcodeReader reader = new BarcodeReader();  
// 加载图片文件
Bitmap image = new Bitmap("D:\\PrideJoy\\Zxing.Demo\\Zxing.demo\\bin\\Debug\\net7.0\\qr-image.jpg");
 
// 获取rawRGB数据
Rectangle rect = new Rectangle(0, 0, image.Width, image.Height);
System.Drawing.Imaging.BitmapData bmpData = image.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, image.PixelFormat);
IntPtr ptr = bmpData.Scan0;
int bytes = Math.Abs(bmpData.Stride) * image.Height;
byte[] rawRGB = new byte[bytes];
System.Runtime.InteropServices.Marshal.Copy(ptr, rawRGB, 0, bytes);
image.UnlockBits(bmpData);
 
// 获取格式（format）
RGBLuminanceSource.BitmapFormat format;
switch (image.PixelFormat)
{
    case System.Drawing.Imaging.PixelFormat.Format8bppIndexed:
        format = RGBLuminanceSource.BitmapFormat.Gray8;
        break;
    case System.Drawing.Imaging.PixelFormat.Format16bppGrayScale:
        format = RGBLuminanceSource.BitmapFormat.Gray16;
        break;
    case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
        format = RGBLuminanceSource.BitmapFormat.RGB24;
        break;
    case System.Drawing.Imaging.PixelFormat.Format32bppRgb:
        format = RGBLuminanceSource.BitmapFormat.RGB32;
        break;
    case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
        format = RGBLuminanceSource.BitmapFormat.ARGB32;
        break;
    // 其他格式的处理
    default:
        format = RGBLuminanceSource.BitmapFormat.Unknown;
        break;
}
 
// 获取宽度（width）和高度（height）
int width = image.Width;
int height = image.Height;
var result = reader.Decode(rawRGB,width,height, format);
// do something with the result
if (result != null)
{
    Console.WriteLine("内容为："+result.Text);
}