barcode

问题 I am trying to see whether its possible to read the barcode in WPF Applications without using any 3rd party tools. We built an application using WPF and they are not willing to buy any third party devices to read the barcode. Is there any other way to read the barcode data in WPF Applications using .NET APIS? Note: I seen examples in .NET, but most of them using Barcode reader tool. I have seen examples in Android ZXing library does that with out any tools like barcode reader or scanner. Any

问题 I am trying to create pages of incrementing labels that include barcodes. I can get a barcode into a PDF, and I can get it superimposed on other content in the PDF (see below). But I can't figure out how to assign a barcode to a certain page of a pdf using something maybe like Zend_Barcode::factory('code39', 'pdf', $barcodeOptions, $rendererOptions)->setResource($page)->draw(); or $page = Zend_Barcode::factory('code39', 'pdf', $barcodeOptions, $rendererOptions)->setResource($pdf)->draw();

问题 I'm trying generate barcodes from a text string and then PDF the results using iTextSharp. Right now, I have the code below: // Create a Document object var pdfToCreate = new Document(PageSize.A4, 0, 0, 0, 0); // Create a new PdfWrite object, writing the output to a MemoryStream var outputStream = new MemoryStream(); var pdfWriter = PdfWriter.GetInstance(pdfToCreate, outputStream); PdfContentByte cb = new PdfContentByte(pdfWriter); // Open the Document for writing pdfToCreate.Open();

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I am developing a PHP based web app and adding support to create and read barcodes. I wanted to know how can I import data from a barcode reader

问题 Like the title says, I have a Code128 font that I would like to print barcodes with. However, the string needs to be encoded in Code128 to make the barcode font work. My app uses the Python3 language. There used to be an example on the web somewhere how to encode the string for a Code128 font, but I can't find it anymore. I do NOT want a string to .svg converter. I specifically want to convert a string to a Code128 encoded string. Any references, code snippets in Python3 or documentation

问题 I have looked around on the StackOverflow forums, unable to find a solution that applies to my specific problem. I need to write a bit of code, that is continuously checking for user input. I have got a Raspberry Pi with a Barcode Scanner attached to it. I want my Python script to loop, waiting for my Barcode Scanner to bleep something (which will then "type" it in the active window, it's acting like a keyboard). When the barcode scanner 'types' the 8 digit number - I need the Python script

问题 I am using a bar code font to display bar code in my crystal report. It's working fine but in one condition It needs restart of machine after installing bar code font. So it's working good because after installing bar code font I simply restart the machine and it start's work. But when I uploaded my project on web server the same condition occurs. My service provider installed bar code font on server but, it requires restart of server to take effects which is not possible. So what is the

问题 I need a way of generating PDF417 barcodes from byte arrays . I have found numerous SDKs that can generate barcodes but all of them expect a string as the data instead of a byte array, unfortunately this isn't a possibility since I need to conform to a pre-existing standard Thanks in advance Code that I have tried, as requested by Wyatt Earp. /// <summary> /// Writes the barcode data to a specified location /// </summary> /// <param name="data">Data of the barcode</param> /// <param name=

问题 I am trying barcode scanner in one of my iOS application. I had successfully implemented the barcode scanner. But currently barcode scanning is displayed in full screen only. But what I want is that, the video should be viewed in full screen and the barcode should be scanned in particular portion only. That is, if the barcode is placed in that portion then only it should be displayed. Below is my current code: session=[[AVCaptureSession alloc]init]; device=[AVCaptureDevice

问题 I have an android app which on local WiFi and doesn't require an internet connection so I am looking for a solution which can scan QR codes without requiring Google Play Services as no internet connection is there so I do not want to update Google Play Services. Currently, I am doing it by using Google Vision API but somehow(if possible) I want to remove this dependency. 回答1: Below is the link for the same : QR Code Reader without requiring google play services 来源： https://stackoverflow.com