Read Code 39 BarCode in C# Quickly and Easily 在 C# 中快速轻松地读取代码 39 BarCode。

using IronBarCode;
using System;

BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    // Tell the reader to only look for Code 39.
    ExpectBarcodeTypes = BarcodeEncoding.Code39
};

// Read barcode(s) from the image file using the specified options
var results = BarcodeReader.Read("code39.png", options);

// Loop through each BarcodeResult found in the image
foreach (var result in results)
{
    // Print the decoded string value of the standard Code 39 barcode
    Console.WriteLine(result.ToString());
}

Imports IronBarCode
Imports System

Dim options As New BarcodeReaderOptions() With {
    .ExpectBarcodeTypes = BarcodeEncoding.Code39
}

' Read barcode(s) from the image file using the specified options
Dim results = BarcodeReader.Read("code39.png", options)

' Loop through each BarcodeResult found in the image
For Each result In results
    ' Print the decoded string value of the standard Code 39 barcode
    Console.WriteLine(result.ToString())
Next

using IronBarCode;
using System;

BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    // Enable extended Code 39 mode
    UseCode39ExtendedMode = true,

    // Specify that we are expecting Code 39 barcodes
    ExpectBarcodeTypes = BarcodeEncoding.Code39
};

// Read barcode(s) from the extended code 39 image
var results = BarcodeReader.Read("code39extended.png", options);

// Loop through each BarcodeResult found in the image
foreach (var result in results)
{
    // Print the fully decoded ASCII string (e.g., "Test-Data!")
    Console.WriteLine(result.ToString());
}

Imports IronBarCode
Imports System

Dim options As New BarcodeReaderOptions() With {
    .UseCode39ExtendedMode = True,
    .ExpectBarcodeTypes = BarcodeEncoding.Code39
}

' Read barcode(s) from the extended code 39 image
Dim results = BarcodeReader.Read("code39extended.png", options)

' Loop through each BarcodeResult found in the image
For Each result In results
    ' Print the fully decoded ASCII string (e.g., "Test-Data!")
    Console.WriteLine(result.ToString())
Next

BarcodeReaderOptions options = new BarcodeReaderOptions()
{
    ExpectBarcodeTypes = BarcodeEncoding.Code39,
    UseCode39ExtendedMode = true,

    // Apply image correction filters
    ImageFilters = new ImageFilterCollection() {
        new SharpenFilter(),
        new ContrastFilter(),
        new BrightnessFilter()
    }
};

Dim options As New BarcodeReaderOptions() With {
    .ExpectBarcodeTypes = BarcodeEncoding.Code39,
    .UseCode39ExtendedMode = True,
    .ImageFilters = New ImageFilterCollection() From {
        New SharpenFilter(),
        New ContrastFilter(),
        New BrightnessFilter()
    }
}