barcode

问题 I've been working with the netbarcodewriter library from https://github.com/simongh/barcodes and have been able to successfully generate code 128 barcodes. It fails when I try to encode (95)00209(96)0004471(97)0065(98)1931 with the EAN128 using the GS1Builder. Below is an example in LinqPad: GS1Builder gs1= new GS1Builder(); // add the AIs gs1.Add(95,"00209"); gs1.Add(96,"0004471"); gs1.Add(97,"0065"); gs1.Add(98,"1931"); gs1.ToDisplayString().Dump(); var ean128 = new EAN128(); bmp = ean128

问题 I am using PDFBox and have the following code snippet, which is reading a PDF file and converting it to image (PNG). It is working well, the only problem is that it is completely losing the barcode value that is in the PDF file. Does anyone know how to work around this with PDFBox? Is that even possible? Thanks. PDDocument doc = PDDocument.load(new File("INPUT.pdf")); PDPage page = (PDPage) doc.getDocumentCatalog().getAllPages().get(0); BufferedImage image = page.convertToImage(); File

问题 I have a unique problem where I have to use only HTML because of platform constraints to send out receipt emails. The receipts need to have a CODE128 Barcode generated on them. Unfortunately because I can only use HTML in the email template I am looking to figure out how to create these barcodes and link them with an IMG tag. So my current idea is to use the PDFCrowd php library on a different server and then create an IMG tag in the email template with the SRC being a GET Request URL to the

问题 I have been searching which libraries are necessary to generate a barcode containing report, using JasperReports (version 4.6.0) and barcode4j, in a simple setting/scenario (just have a report design, fill the report, export to pdf) so nothing fancy. In a somewhat desperate try, I just added (using an Eclipse java project, in its build path) all libraries used by iReport 4.6.0, and tried to generate a pdf report with a barcode in. The result was a nice pdf report, but with NO barcode in. I am

问题 Im currently using the Barcode Scanner from the open source library Zxing in my android project. The problem Im facing is concerning the scanning UI When I launch the Scan window, it occupies the entire screen and Im not sure how to customize it - I would like to add a HTML back button in case the customer wants to scan or even better add the menu bar to be consistent with all other pages on my app ? How do I add basic HTML elements in the scanning window ? 回答1: If you are just calling

问题 I have been searching for this. All the related Java APIs are worked on images. They get the information from barcode contained in the images and print barcode to images. My question is how to get the barcode directly from the scanner in Java? Is there any API I am missing to read barcode directly from scanner? Or, whether I need to generate in-memory image from the information got by the scanner? 回答1: AFAIK, most of barcode scanners have keyboard emulation mode. You can attach scanner to

问题 After using several non compatible barcode generators gems in rails 3.2, i am trying to use Barby. But i have no clue on how to install it. No idea if have to include in gemfile? or install as a plugin? Readme provides no information about it nor the wiki. 回答1: Just for anyone still confuse about it, you can put them on Gemfile with gem 'barby' because the Gem was listed on Ruby Gems. Just saying. 回答2: Got it: gem install barby . This installs the gem, also its useful to install the wrapper

问题 Introduction Step 1 I tried to read the barcode (see image below) using a mobile barcode reader and online tools and got it: data - 30925018 , visualization algorithm - Code128C Step 2 Then I tried to generate a barcode from given data and got these images: Original barcode Generated barcode Step 3 As you can see, the images are different. So, I decided to decrypt it by myself. Here is the result: Original decrypted barcode Generated decrypted barcode Сlarifications As Wikipedia says (https:/

问题 I'm using a barcode scanner which inserts barcode string into an EditText in this format "12345\n". Instead of using a search button, I want to trigger the search event by the "\n" character. I used TextEdit's addTextChangedListener and inside that function I'm doing: protected TextWatcher readBarcode = new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { // TODO Auto-generated method stub } @Override public void beforeTextChanged

问题 I'm trying to perform barcode recognition on a multipage tiff file. But the tiff file is coming to me from a fax server (which I don't have control over) that saves the tiff with a non-square pixel aspect ratio. This is causing the image to be badly squashed due to the aspect ratio. I need to convert the tiff to a square pixel aspect ratio, but have no idea how to do that in C#. I'll also need to stretch the image so that changing the aspect ratio still makes the image legible. Has anyone