Barkoder SDK 与 IronBarcode：C# 条码库对比

// Dynamsoft: license activation required at startup
using Dynamsoft.CVR;
using Dynamsoft.DBR;
using Dynamsoft.License;
using Dynamsoft.Core;

// LicenseManager.InitLicense performs an online activation on first run
int errorCode = LicenseManager.InitLicense("YOUR-DYNAMSOFT-LICENSE-KEY", out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
    throw new InvalidOperationException($"License activation failed: {errorMsg}");

using var router = new CaptureVisionRouter();

// Settings tuned for camera frame processing
SimplifiedCaptureVisionSettings settings = router.GetSimplifiedSettings(
    PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 1; // single barcode per frame
settings.Timeout = 100;                              // 100ms suits a 30fps pipeline
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);

Imports Dynamsoft.CVR
Imports Dynamsoft.DBR
Imports Dynamsoft.License
Imports Dynamsoft.Core

' Dynamsoft: license activation required at startup

' LicenseManager.InitLicense performs an online activation on first run
Dim errorCode As Integer = LicenseManager.InitLicense("YOUR-DYNAMSOFT-LICENSE-KEY", errorMsg:=Nothing)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
    Throw New InvalidOperationException($"License activation failed: {errorMsg}")
End If

Using router As New CaptureVisionRouter()

    ' Settings tuned for camera frame processing
    Dim settings As SimplifiedCaptureVisionSettings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
    settings.BarcodeSettings.ExpectedBarcodesCount = 1 ' single barcode per frame
    settings.Timeout = 100                              ' 100ms suits a 30fps pipeline
    router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
End Using

// Dynamsoft PDF processing — typical cross-platform pattern with PdfiumViewer
// dotnet add package PdfiumViewer
using PdfiumViewer;
using System.Drawing.Imaging;
using Dynamsoft.CVR;
using Dynamsoft.DBR;

public List<string> ReadBarcodesFromPdf(string pdfPath)
{
    var results = new List<string>();

    using (var pdfDoc = PdfDocument.Load(pdfPath))
    using (var router = new CaptureVisionRouter())
    {
        for (int page = 0; page < pdfDoc.PageCount; page++)
        {
            // Render each page at 300 DPI
            using var image = pdfDoc.Render(page, 300, 300, true);
            using var ms = new MemoryStream();
            image.Save(ms, ImageFormat.Png);
            byte[] imageBytes = ms.ToArray();

            // Now pass rendered image bytes to the Capture Vision Router
            CapturedResult result = router.Capture(imageBytes,
                PresetTemplate.PT_READ_BARCODES);
            foreach (var item in result.GetDecodedBarcodesResult().GetItems())
                results.Add(item.GetText());
        }
    }

    return results;
}

Imports PdfiumViewer
Imports System.Drawing.Imaging
Imports Dynamsoft.CVR
Imports Dynamsoft.DBR
Imports System.IO

Public Function ReadBarcodesFromPdf(pdfPath As String) As List(Of String)
    Dim results As New List(Of String)()

    Using pdfDoc = PdfDocument.Load(pdfPath)
        Using router = New CaptureVisionRouter()
            For page As Integer = 0 To pdfDoc.PageCount - 1
                ' Render each page at 300 DPI
                Using image = pdfDoc.Render(page, 300, 300, True)
                    Using ms As New MemoryStream()
                        image.Save(ms, ImageFormat.Png)
                        Dim imageBytes As Byte() = ms.ToArray()

                        ' Now pass rendered image bytes to the Capture Vision Router
                        Dim result As CapturedResult = router.Capture(imageBytes, PresetTemplate.PT_READ_BARCODES)
                        For Each item In result.GetDecodedBarcodesResult().GetItems()
                            results.Add(item.GetText())
                        Next
                    End Using
                End Using
            Next
        End Using
    End Using

    Return results
End Function

// IronBarcode: PDF is native — no extra library, no render loop
// NuGet: dotnet add package BarCode
var results = BarcodeReader.Read("invoice.pdf");
foreach (var result in results)
{
    Console.WriteLine($"{result.Format}: {result.Value}");
}

Imports IronBarCode

' IronBarcode: PDF is native — no extra library, no render loop
' NuGet: dotnet add package BarCode
Dim results = BarcodeReader.Read("invoice.pdf")
For Each result In results
    Console.WriteLine($"{result.Format}: {result.Value}")
Next

// Dynamsoft: error code pattern required
int errorCode = LicenseManager.InitLicense("YOUR-DYNAMSOFT-LICENSE-KEY", out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
{
    // Possible causes: network timeout, license server unreachable,
    // invalid key, expired key, activation quota exceeded, etc.
    throw new InvalidOperationException($"Dynamsoft license failed [{errorCode}]: {errorMsg}");
}

Imports System

' Dynamsoft: error code pattern required
Dim errorCode As Integer = LicenseManager.InitLicense("YOUR-DYNAMSOFT-LICENSE-KEY", errorMsg)
Dim errorMsg As String
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
    ' Possible causes: network timeout, license server unreachable,
    ' invalid key, expired key, activation quota exceeded, etc.
    Throw New InvalidOperationException($"Dynamsoft license failed [{errorCode}]: {errorMsg}")
End If

// Dynamsoft offline license — replay a pre-fetched license bundle
int errorCode = LicenseManager.InitLicenseFromLicenseContent(
    licenseContent, out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
    throw new InvalidOperationException($"Offline activation failed: {errorMsg}");

Imports System

' Dynamsoft offline license — replay a pre-fetched license bundle
Dim errorCode As Integer = LicenseManager.InitLicenseFromLicenseContent(licenseContent, errorMsg)
Dim errorMsg As String = Nothing
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
    Throw New InvalidOperationException($"Offline activation failed: {errorMsg}")
End If

// IronBarCode: local validation, no network required
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";

' IronBarCode: local validation, no network required
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"

// NuGet: dotnet add package BarCode
using IronBarCode;

// License — local validation, no network call
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";

// Read from an image file
var results = BarcodeReader.Read("label.png");
foreach (var result in results)
    Console.WriteLine($"{result.Format}: {result.Value}");

// Read from a PDF — native, no extra library
var pdfResults = BarcodeReader.Read("manifest.pdf");

// Read with options for high-accuracy or high-throughput scenarios
var options = new BarcodeReaderOptions
{
    Speed = ReadingSpeed.Balanced,
    ExpectMultipleBarcodes = true,
    最大并行线程数 = 4
};
var multiResults = BarcodeReader.Read("multi-barcode-sheet.png", options);

Imports IronBarCode

' License — local validation, no network call
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"

' Read from an image file
Dim results = BarcodeReader.Read("label.png")
For Each result In results
    Console.WriteLine($"{result.Format}: {result.Value}")
Next

' Read from a PDF — native, no extra library
Dim pdfResults = BarcodeReader.Read("manifest.pdf")

' Read with options for high-accuracy or high-throughput scenarios
Dim options As New BarcodeReaderOptions With {
    .Speed = ReadingSpeed.Balanced,
    .ExpectMultipleBarcodes = True,
    .最大并行线程数 = 4
}
Dim multiResults = BarcodeReader.Read("multi-barcode-sheet.png", options)

// Generate Code 128
BarcodeWriter.CreateBarcode("SHIP-7734-X", BarcodeEncoding.Code128)
    .ResizeTo(400, 100)
    .SaveAsPng("shipping-label.png");

// Generate QR with error correction and embedded logo
QRCodeWriter.CreateQrCode("https://track.example.com/7734", 500, QRCodeWriter.QrErrorCorrectionLevel.Highest)
    .AddBrandLogo("company-logo.png")
    .SaveAsPng("tracking-qr.png");

// Get bytes for HTTP response
byte[] bytes = BarcodeWriter.CreateBarcode("ITEM-001", BarcodeEncoding.Code128)
    .ResizeTo(400, 100)
    .ToPngBinaryData();

Imports System

' Generate Code 128
BarcodeWriter.CreateBarcode("SHIP-7734-X", BarcodeEncoding.Code128) _
    .ResizeTo(400, 100) _
    .SaveAsPng("shipping-label.png")

' Generate QR with error correction and embedded logo
QRCodeWriter.CreateQrCode("https://track.example.com/7734", 500, QRCodeWriter.QrErrorCorrectionLevel.Highest) _
    .AddBrandLogo("company-logo.png") _
    .SaveAsPng("tracking-qr.png")

' Get bytes for HTTP response
Dim bytes As Byte() = BarcodeWriter.CreateBarcode("ITEM-001", BarcodeEncoding.Code128) _
    .ResizeTo(400, 100) _
    .ToPngBinaryData()