在C# 中读取条形码

using IronBarCode;
using System;

// Read barcode
BarcodeResults results = BarcodeReader.Read("GetStarted.png");

// Log the result to Console Window
foreach (BarcodeResult result in results)
{
    if (result != null)
    {
        Console.WriteLine("GetStarted was a success. Read Value: " + result.Text);
    }
}

Imports IronBarCode
Imports System

' Read barcode
Private results As BarcodeResults = BarcodeReader.Read("GetStarted.png")

' Log the result to Console Window
For Each result As BarcodeResult In results
	If result IsNot Nothing Then
		Console.WriteLine("GetStarted was a success. Read Value: " & result.Text)
	End If
Next result

using IronBarCode;

BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    // Choose a speed from: Faster, Balanced, Detailed, ExtremeDetail
    // There is a tradeoff in performance as more Detail is set
    Speed = ReadingSpeed.ExtremeDetail,

    // By default, all barcode formats are scanned for.
    // Specifying one or more, performance will increase.
    ExpectBarcodeTypes = BarcodeEncoding.QRCode | BarcodeEncoding.Code128,
};

// Read barcode
BarcodeResults results = BarcodeReader.Read("TryHarderQR.png", options);

Imports IronBarCode

Private options As New BarcodeReaderOptions() With {
	.Speed = ReadingSpeed.ExtremeDetail,
	.ExpectBarcodeTypes = BarcodeEncoding.QRCode Or BarcodeEncoding.Code128
}

' Read barcode
Private results As BarcodeResults = BarcodeReader.Read("TryHarderQR.png", options)

using IronBarCode;

BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    // Choose which filters are to be applied (in order)
    ImageFilters = new ImageFilterCollection() {
        new AdaptiveThresholdFilter(),
    },

    // Uses machine learning to auto rotate the barcode
    AutoRotate = true,
};

// Read barcode
BarcodeResults results = BarcodeReader.Read("TryHarderQR.png", options);

Imports IronBarCode

Private options As New BarcodeReaderOptions() With {
	.ImageFilters = New ImageFilterCollection() From {New AdaptiveThresholdFilter()},
	.AutoRotate = True
}

' Read barcode
Private results As BarcodeResults = BarcodeReader.Read("TryHarderQR.png", options)

using IronBarCode;
using System;

// Multiple barcodes may be scanned up from a single document or image. A PDF document may also used as the input image
BarcodeResults results = BarcodeReader.ReadPdf("MultipleBarcodes.pdf");

// Work with the results
foreach (var pageResult in results)
{
    string Value = pageResult.Value;
    int PageNum = pageResult.PageNumber;
    System.Drawing.Bitmap Img = pageResult.BarcodeImage;
    BarcodeEncoding BarcodeType = pageResult.BarcodeType;
    byte[] Binary = pageResult.BinaryValue;
    Console.WriteLine(pageResult.Value + " on page " + PageNum);
}

Imports IronBarCode
Imports System

' Multiple barcodes may be scanned up from a single document or image. A PDF document may also used as the input image
Private results As BarcodeResults = BarcodeReader.ReadPdf("MultipleBarcodes.pdf")

' Work with the results
For Each pageResult In results
	Dim Value As String = pageResult.Value
	Dim PageNum As Integer = pageResult.PageNumber
	Dim Img As System.Drawing.Bitmap = pageResult.BarcodeImage
	Dim BarcodeType As BarcodeEncoding = pageResult.BarcodeType
	Dim Binary() As Byte = pageResult.BinaryValue
	Console.WriteLine(pageResult.Value & " on page " & PageNum)
Next pageResult

using IronBarCode;

// Multi frame TIFF and GIF images can also be scanned
BarcodeResults multiFrameResults = BarcodeReader.Read("Multiframe.tiff");

foreach (var pageResult in multiFrameResults)
{
    //...
}

Imports IronBarCode

' Multi frame TIFF and GIF images can also be scanned
Private multiFrameResults As BarcodeResults = BarcodeReader.Read("Multiframe.tiff")

For Each pageResult In multiFrameResults
	'...
Next pageResult

using IronBarCode;

// The Multithreaded property allows for faster barcode scanning across multiple images or PDFs. All threads are automatically managed by IronBarCode.
var ListOfDocuments = new[] { "image1.png", "image2.JPG", "image3.pdf" };

BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    // Enable multithreading
    Multithreaded = true,
};

BarcodeResults batchResults = BarcodeReader.Read(ListOfDocuments, options);

Imports IronBarCode

' The Multithreaded property allows for faster barcode scanning across multiple images or PDFs. All threads are automatically managed by IronBarCode.
Private ListOfDocuments = { "image1.png", "image2.JPG", "image3.pdf" }

Private options As New BarcodeReaderOptions() With {.Multithreaded = True}

Private batchResults As BarcodeResults = BarcodeReader.Read(ListOfDocuments, options)