Dynamsoft Developer Blog

SwiftUI is a powerful UI framework for building native apps for any Apple platform. This article guides you through the process of creating an iOS QR code scanner using SwiftUI, Dynamsoft Camera Enhancer and Dynamsoft Barcode Reader on M1 Mac mini. Dev Environment on M1 Mac mini Xcode 13.2.1 Cocoapods...

In my previous article, I demonstrated how to implement a simple Android QR code scanner. Based on the codebase, I am going to do something more interesting - integrate the YOLOv4 tiny model that I trained for QR code detection into the Android project. Is YOLO tiny competent for real-time...

A QR code scanner application primarily consists of two parts: camera preview and QR code scanning. There are many Android QR code scanner apps downloadable in the Google Play Store. However, it is more interesting to create a QR code scanner by yourself than to use an existing one. This...

If you want to create a QR code scanner for both Windows and Android from a single codebase, what is the best way to do it? If you have read my previous article, Flutter could be your answer. However, it takes time to develop Flutter plugins. The cons of Flutter...

If you want to build a cross-platform GUI app with Python and Qt, you can either use PyQt or PySide. Both of them are Qt bindings for Python. The main difference is the license: PyQt5 is released under GPL or commercial, whereas PySide2 is released under LGPL. Since PySide2 is...

In the warehouse management system, Drone can be used to automate barcode scanning for inventory counts. To learn drone piloting and try barcode scanning in the air, I bought Ryze Tello, which is a mini drone powered by DJI. In this article, I will share how to detect and decode...

Previously, I wrote an article showing how to build a DotCode reader in Java. I also updated my C# barcode demo to make it support DotCode decoding recently. In this article, I will share a new webcam scanner sample implemented in C++. Reading DotCode with Dynamsoft Barcode SDK Download Dynamsoft...

When I was using CPython to create the Python barcode extension with Dynamsoft Barcode Reader, I had to take concern for the compatibility of Python versions. However, I’m reluctant to install all Python versions in my operating system. To test the compatibility of my Python barcode app in Windows, I...

If you want to quickly create a walking robot, you can use the Lego Boost. In this post, I will share how to use a webcam, Lego Boost, and Dynamsoft Barcode Reader SDK to make a robot for scanning barcodes. The programming language used in this article is Python. What...

Qt for Python enables developers to quickly create GUI apps on Windows, Linux and macOS with one codebase. In this article, I will share how to build a Python barcode reader with Qt on Windows. Since Dynamsoft Barcode Reader SDK is also cross-platform, it is easy for you to reuse...

Dynamsoft JavaScript barcode SDK is built based on WebAssembly, which provides high performance for reading barcodes in web apps. This tutorial aims to demonstrate how to quickly create a simple web barcode reader by using React and Dynamsoft JavaScript barcode SDK. Download Node.js A Simple Web Barcode Reader Create a new react...

In my last article, I shared how to build WinRT component with Dynamsoft Barcode Reader C++ SDK. This article shows how to use the generated Dynamsoft.dll and Dynamsoft.winmd files in a Cordova plugin project for building Windows 10 apps. Installation Dynamsoft Barcode Reader SDK 6.4 Visual Studio 2017 Cordova My...

OpenCV is written in C++.  If you install OpenCV library on Windows, you will see OpenCV officially provides wrappers for Python and Java but not for C#. Fortunately, there are many .NET open source projects for wrapping OpenCV C++ APIs, and thus we don’t need to write a wrapper from...

When porting code from Python 2 to Python 3, it is not as easy as you imagined no matter whether the primary programming language is Python or C/C++. Re-compiling the Dynamsoft Barcode extension for Python 3 is a challenge because I only found a few of documentation and resources online....

Cordova is a mobile application development framework that enables developers to build Android, iOS and Windows Phone apps using HTML5, JavaScript, and CSS3. It uses web views to render UI elements instead of the platform’s native UI framework. Cordova can be extended to add more functionalities with plugins. There are...

I just finished reading the article - Native Extensions for the Standalone Dart VM. In this post, I will share my experience about how to build a Dart native extension from scratch with Dynamsoft C/C++ barcode SDK on Windows. Why Asynchronous Extension Dart is a single-threaded programming language, similar to...

A few months ago, Google announced a new operating system named Fuchsia. It was my first time to hear about Dart, which is the primary programming language for Fuchsia. Dart is a programming language designed by Google.  It is used to build the web (Dart webdev), mobile (Flutter) and server...

OpenCV officially provides both C++ and Python APIs for developers. Most of the time, developers just need to use one kind of programming languages to read, write and process images with hundreds of computer vision algorithms. However, if you want to use OpenCV Python APIs with an extended C/C++ library,...

Previously I shared how to use Touchless, which wraps the win32 APIs of DirectShow, to control webcam in C#. In this article, let’s take a further step to see how to use the more complicated DirectShow.NET APIs to capture the video stream and read barcode from preview frames on Windows. Resources for Learning DirectShow.NET DirectShow.NET...

Building desktop applications is not as easy as developing web applications because it is platform-related. You may need to learn C# for Windows, C/C++ for Linux, and Swift for Mac. For Java developers, it is convenient to create universal desktop applications in Swing and JavaFX. What about web developers, who...

Last week, I shared how to build PHP extension on Linux, as well as how to make a simple PHP barcode reader with a few lines of PHP code. In this post, I will illustrate how to implement an online barcode reader with the custom PHP extension, and how to...

If you want to get a Node.js application into a Docker container from scratch, it’s recommended to read the official guide – Dockerizing a Node.js web app.  It is useful, but not enough for a complicated case. In this post, I’m going to share what problems I have encountered while...