如何使用 IronBarcode 讀取多個條碼：現場示範回顧

// Example C# code to generate various barcode formats using IronBarcode

using IronBarCode;

// Generate a QR code with custom text
BarcodeWriter.CreateBarcode("Hello World!", BarcodeEncoding.QRCode)
    .SaveAsPng("HelloWorldQRCode.png");

// Generate a Code 128 barcode with product information
BarcodeWriter.CreateBarcode("PROD-12345-2024", BarcodeEncoding.Code128)
    .ResizeTo(400, 100)  // Custom dimensions in pixels
    .AddBarcodeValueTextBelowBarcode()  // Add human-readable text
    .SaveAsPng("ProductBarcode.png");

// Generate a Data Matrix barcode for compact data storage
BarcodeWriter.CreateBarcode("Compact data for small labels", BarcodeEncoding.DataMatrix)
    .SaveAsPdf("DataMatrixLabel.pdf");

' Example VB.NET code to generate various barcode formats using IronBarcode

Imports IronBarCode

' Generate a QR code with custom text
BarcodeWriter.CreateBarcode("Hello World!", BarcodeEncoding.QRCode) _
    .SaveAsPng("HelloWorldQRCode.png")

' Generate a Code 128 barcode with product information
BarcodeWriter.CreateBarcode("PROD-12345-2024", BarcodeEncoding.Code128) _
    .ResizeTo(400, 100)  ' Custom dimensions in pixels
    .AddBarcodeValueTextBelowBarcode()  ' Add human-readable text
    .SaveAsPng("ProductBarcode.png")

' Generate a Data Matrix barcode for compact data storage
BarcodeWriter.CreateBarcode("Compact data for small labels", BarcodeEncoding.DataMatrix) _
    .SaveAsPdf("DataMatrixLabel.pdf")

// Complete example of reading barcodes with advanced options

using IronBarCode;
using System;
using System.Linq;

// Read all barcodes in a given image file
var results = BarcodeReader.Read(@"exampleImageWithBarcodes.png");

// Process each barcode read with detailed information
foreach (var result in results)
{
    Console.WriteLine($"Value: {result.Value}");
    Console.WriteLine($"Format: {result.BarcodeType}");
    Console.WriteLine($"Position: X={result.X}, Y={result.Y}");
    Console.WriteLine($"Dimensions: {result.Width}x{result.Height}");
    Console.WriteLine("---");
}

// Read with specific options for challenging scenarios
var advancedResults = BarcodeReader.ReadAsync(
    @"lowQualityDocument.pdf",
    new BarcodeReaderOptions
    {
        Speed = ReadingSpeed.Balanced,  // Balance between speed and accuracy
        ExpectMultipleBarcodes = true,   // Improve for multiple barcode detection
        ExpectBarcodeTypes = BarcodeEncoding.QRCode | BarcodeEncoding.Code128,  // Filter specific types
        CropArea = new System.Drawing.Rectangle(100, 100, 500, 500)  // Focus on specific region
    }
).Result;

// Handle results with error checking
if (advancedResults.Any())
{
    Console.WriteLine($"Found {advancedResults.Count()} barcodes in the document");
}

' Complete example of reading barcodes with advanced options

Imports IronBarCode
Imports System
Imports System.Linq

' Read all barcodes in a given image file
Dim results = BarcodeReader.Read("exampleImageWithBarcodes.png")

' Process each barcode read with detailed information
For Each result In results
    Console.WriteLine($"Value: {result.Value}")
    Console.WriteLine($"Format: {result.BarcodeType}")
    Console.WriteLine($"Position: X={result.X}, Y={result.Y}")
    Console.WriteLine($"Dimensions: {result.Width}x{result.Height}")
    Console.WriteLine("---")
Next

' Read with specific options for challenging scenarios
Dim advancedResults = BarcodeReader.ReadAsync(
    "lowQualityDocument.pdf",
    New BarcodeReaderOptions With {
        .Speed = ReadingSpeed.Balanced,  ' Balance between speed and accuracy
        .ExpectMultipleBarcodes = True,  ' Improve for multiple barcode detection
        .ExpectBarcodeTypes = BarcodeEncoding.QRCode Or BarcodeEncoding.Code128,  ' Filter specific types
        .CropArea = New System.Drawing.Rectangle(100, 100, 500, 500)  ' Focus on specific region
    }
).Result

' Handle results with error checking
If advancedResults.Any() Then
    Console.WriteLine($"Found {advancedResults.Count()} barcodes in the document")
End If