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Node-RED is a flow-based programming tool built-on Node.js. It provides a browser-based editor that helps users to create awesome applications by wiring different nodes. This article shares my experience of building a barcode node with Dynamsoft Barcode Reader on Windows. Installing and Running Node RED on Windows 10 Install Node-RED:...
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If you are using React Native, you can quickly create a camera app with React Native Camera. In addition, React Native Camera component supports barcode scanning, face detection, and text recognition. This article shares how to replace the default barcode reading function with Dynamsoft Barcode Reader for Android. How to...
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Some developers used JNA to call native C/C++ interfaces of Dynamsoft Barcode Reader in Java program. The app ran slowly and sometimes crashed. Based on the use case, I created a simple project for building JNA and JNI on Windows. The sample does not only show how to invoke native code but...
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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...
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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...
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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. Web Worker for WASM If you have tried the ‘hello...
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Previously, I demonstrated how to use OpenCV and Dynamsoft Barcode SDK to build a Python barcode reader. There’s one problem that when barcode decoding takes a long time, the webcam video didn’t play smoothly. I also tried multithread but failed to tackle the issue either due to the Python GIL(Global...
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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. What You Should Know Node.js C++ Addon vs. WebAssembly Speed Performance is vital...
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The reason WebAssembly appealing to me, besides the performance, is that I can run WebAssembly either on client-side or server-side. In this post, I will share how to build WebAssembly file and run it with Node.js. Environment Node.js v8.11.3 IIS v10.0.15063.0 WebAssembly Standalone When compiling C++ code to WebAssembly, by...
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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...