Rene Schulte extended his Silverlight 4 webcam and edge detection shader sample. He added a functionality to save webcam snapshots as JPEG files and discusses some limitations of Silverlight's built-in CaptureSource.AsyncCaptureImage snapshot method. Furthermore he gives some ideas on how to build a Silverlight 4 video chat / conference application on top of the JPEG capturing and encoding code.

As part of the Eclipse Gemini project, Spring Dynamic Modules will be moving to Eclipse.org where it will continue to be developed and to track ongoing enhancements to the Blueprint Service specification. The Spring Dynamic Modules code base will be dual-licensed under both the EPL and Apache License at Eclipse.org.

This is a simple plugin for adding sliding captions to images. The image gets tinted too, when hovering.

As a developer I have made an habit of using the keyboard for the majority of tasks. Vim for example is my favorite text editor, which does not require point-and-click. This is a productivity requirement: the less my fingers move between the keyboard and the mouse, the faster I am in consulting documentation and other developers' blogs; vim even goes further and lets you scan a document without leaving the home row.

db4o Maven snapshot repository is now available. Responding to a frequent request from the community, the db4o team now supplies Maven snapshots of both the stable and the trunk (continous) db4o builds. The repository is available at the following URL: https://source.db4o.com/maven The artifact layout corresponds to the structure you find in the regular downloads. It has changed between versions 7.4 and 7.12: In 7.12 they factored out the optional and cs (Client/Server) modules to become separate jars and supply a full (no dependency) jar that contains the full db4o distribution including all required and optional modules.

Google exclaims, and everyone gasps and bows before the cloud embracing visionaries. But where's the step back, the deep breath, the wiping away of the 'oh gosh it's Google, it's the future' haze to reveal the problems that lurk beneath the surface? I'm far from being a luddite, I was an internet evangelist 20 years ago and an early adopter of everything from virtual worlds to social networks.

Much abuzz on the Web, the first betas of Google’s Chrome OS are out. What does this operating system give you at this point? IT pro Rick Vanover walks through a Chrome OS beta.

Google quietly announced last week that its cloud will run nothing but open source software. This is a big deal, but let’s first admit why Google did it. As I have written many times, Google has a big cost advantage when it comes to delivering Internet resources.

Hearing the news of Google’s Chrome OS at the end of last week left me with an uneasy feeling about the future of operating systems and computer use. The general idea behind Chrome OS is that the operating system as you see it will be nothing more than a web browser with a few things plugged into it

Google’s two operating systems, mobile Android and desktop Chrome OS, will likely converge as a single OS in the future, said Google co-founder Sergey Brin. “Android and Chrome will likely converge over time,” Brin said in an informal discussion with reporters after the company’s Chrome OS presentation last Thursday.

Processing user-supplied form data can be fraught with errors. Not so with the Zend Framework! This tutorial shows you how to use the Zend Framework's Zend_Validate component to easily and conveniently validate complex form data.

Recently Billy McCafferty wrote a post on Horn, a package manager that Paul Cowan and Dave the Ninja have developed, similar to the idea of Ruby’s Gem. Although it’s a step in the right direction, it does have issues. To be able to use it, you need to download Horn and build it. But not only that, you also need to install Subversion, Git, Powershell, Rake, PSake, Cake, Fake…and a whole slew of SCM’s and build tools. Why? Because Horn builds from source. As such, it needs to access the SCM a specific project uses, download the files locally and run the build script. Since OSS projects are free to choose what build script they use, that also adds to the complexity. Some are happy with MSBuild, which isn’t normally an issue since it’s part of every .NET install. However, others use Rake, which in turn requires Ruby. You get the picture…

The recent release of JRuby 1.4 already ships as as an OSGi bundle. I’ve never mixed Ruby with Java before, so I took it as an opportunity to learn more. This blog explains how to write a Twitter Search UI for Eclipse, using Ruby’s http and JSON libraries to talk to twitter.com. Read on to learn how to install JRuby on your system, make it work with Equinox and mix Java with Ruby code.

Looking over the previous three posts, we have been working within a single assembly for managing our extensibility parts. While this works well if we want to use MEF more as an IoC container, it really limits the extensibility of our application. In the single assembly model that we've been using, every update would require a new build of the application. To overcome this limitation, we'll create a new example project that builds on what we've covered and branch it out into multiple assemblies.

An easy way to generate DDL from JPA annotations using org.xaloon.wicket.component.mounting.PageAnnotatedScanner. You provide only parent package name and all sub packages will be processed in order to get all dependencies between entities.

At Sirius we have recently started using and deploying Roundcube in favour of the tried and tested (but very old) Squirrelmail. Impressed by it's beautiful front-end, ease of use and obvious extensibility, Tom Callway spoke to Till Klampaeckel and Thomas Bruederli, two of Roundcube's core developers, to find out more about this exciting project.

JMS is used to exchange asynchronously messages between programs in Java. Learn here how to get it to work using open source ActiveMQ and see sample cut-and-paste-ready codes of JMS producer and JMS consumer.

Reflections on how the nature of programming and development have changed over the last 10 years.

Displays images continuously in a slideshow presentation format, with a fade effect on image transitions

A method for JIT'ing algorithms and data structures with LLVM

How to register an app with Twitter to get consumer key and consumer secret. Also you will learn what the call back URL is. And how Twitter authentication mechanism works.

Larry Dignan: Google on Thursday revealed a bevy of noteworthy developments for its Chrome OS. The company released the Chrome OS to the open source community, laid out its security vision and promised to deliver a simple operating system. However, the success or failure of the Chrome OS will ride on whether users will give up desktop applications. Gallery tour: Chrome OS

After all open source brought lot of piece