A few days ago, I accepted a new challenge of creating a simple command line barcode reader using Rust and Dynamsoft Barcode Reader SDK. Rust is a system programming language similar to C++. The learning process did not go through smoothly as I expected. It is not as easy as learning other high-level programming languages such as Java and Python. In this article, I share my experience of learning and using Rust.
Tag: Barcode
How to Package JNI Shared Library into Jar File
The article is not about how to create Java native methods invoking C/C++ APIs. It aims to help developers to build a jar package containing JNI shared library, made with Dynamsoft Barcode Reader, for Windows, Linux, and macOS from scratch. I will demonstrate how to create JNI shared libraries with CMake, as well as how to package class files and shared libraries into jar files with Eclipse and Maven.
Using Web Worker to Load WebAssembly Barcode SDK
Web Worker is a way to run JavaScript in background threads. The worker thread can perform some heavy works without interfering with the user interface. This article shares how to load WebAssembly and invoke Dynamsoft JavaScript barcode APIs in a web worker.
JavaScript Barcode SDK: Native vs. WebAssembly
A JavaScript barcode SDK can be built in C/C++ for high performance. We can compile C/C++ code to a Node.js addon or WebAssembly. Which one is superior? Let’s try Dynamsoft Barcode Reader SDK to find the answer.
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The Preview of Dynamsoft WebAssembly Barcode SDK
WebAssembly (Wasm) is a revolutionary technology for Web development. It aims to execute at native speed in web browsers. With WebAssembly, it is convenient to port C/C++ code for web client and server applications. Dynamsoft Barcode Reader 6.2 is the most potent barcode SDK ever, and its WebAssembly edition is on the way. Let’s see what we can do with the preview edition of Dynamsoft WebAssembly barcode SDK.
Why You Should Use A Commercial Barcode SDK for Business
ZXing is probably the most popular open source barcode SDK in the world. The library is written in Java and now has been ported to C++, .NET, Python, Objective-C, PHP and some other programming languages. Because ZXing is free, many developers would like to build barcode scanning apps with it. However, it is not competent for complicated business cases especially for images with multiple barcodes. In this article, I will show how to create a .NET barcode reader step by step and compare the performance difference between ZXing.Net and Dynamsoft Barcode Reader.
Node.js Barcode Extension with DBR 6.0
When searching for barcode SDK online, you can find lots of free and commercial SDKs. However, there are only a few of SDKs cross-platform, which is why Dynamsoft Barcode Reader is outstanding. Dynamsoft Barcode Reader SDK supports Windows, Linux, macOS, Android, iOS, and Raspberry Pi. Currently, the latest DBR 6.0 is better and faster than the previous version. The imperfection is it only supports Windows so far. If you need an SDK available for all platforms, please choose DBR 5.2. The post will help developers create a Node.js barcode reader with DBR 6.0 on Windows.
JSON Schema for Dynamsoft Barcode Reader Template Files
If you have tried out Dynamsoft Barcode Reader 6.0, you may have noticed the new template feature. The new SDK version supports importing parameters from JSON-format template files. How to create the template files? One way is to visit the barcode online demo, select some arguments and then download the template file. The other way is to write a JSON file by yourself. When writing a JSON file line by line, there is a problem that how to write valid data. The workaround is JSON Schema. JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. To facilitate developers, I created a basic JSON Schema for Dynamsoft Barcode Reader template files.
Updating PHP Barcode Extension for PHP7
Two years ago, I created a sample for demonstrating how to wrap Dynamsoft Barcode Reader 4.2, a C++ barcode library, as an extension for PHP5. How time flies, the latest barcode library is up to version 5.2. Meanwhile, many developers start to write web program in PHP7. This post will help PHP developers figure out how to build a PHP barcode reader on Ubuntu 16.04 with DBR 5.2 and PHP7.
Things to Do with DBR 6.0 and Python Barcode Extension
Dynamsoft Barcode Reader 6.0 SDK is the best version ever. It dramatically improved barcode detecting speed and accuracy, especially for multiple barcodes per frame. Since there are some new APIs and parameters, I have to update both C++ and Python code for the Python barcode extension that was built with DBR 5.2 correspondingly.
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