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  • Une Release Candidate de Ubuntu 10.04 LTS pour patienter avant la sortie officielle de "Lucid Lynx"

    Mise à jour du 23/04/10 Ubuntu 10.04 LTS arrive la semaine prochaine Canonical sort une Release Candidate en attendant Canonical vient de sortir la Release Candidate (RC) de Unbuntu 10.04 (alias Lucid Lynx). Rien de bien nouveau par rapport aux versions précédentes (lire ci-avant), si ce n'est une finition améliorée - avec notamment de nouveaux fonds d'écran. Le principal intérêt de cette RC est surtout de faire patienter jusqu'à la sortie de la version définitive prévue elle pour la semaine prochaine. Le jeudi 29 avril très exactement. Pour les impatients donc, la RC de Lucid Lynx...

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  • Créer un lecteur de flux RSS avec une application iPhone, par Rafael Garcia

    Bonjour, Je vous présente ce tutoriel traduit par ram-0000 intitulé : Créer un lecteur de flux RSS avec une application iPhone Nous avons reçu un certain nombre de demandes pour un tutoriel sur la création d'un lecteur de flux RSS. Cette semaine, Rafael Garcia Leiva va nous montrer comment créer une application iPhone pour lire un flux RSS. Rafael est un développeur expérimenté d'applications iPhone, auteur de plus d'une douzaine de programmes. Actuellement, il travaille comme développeur...

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  • Open source is NASA's next frontier

    <b>Federal Computer Week: </b>"The challenges to government's adoption and participation in open-source communities is often thought to be a simpe culture clash, but in reality it goes deeper than that, accordning to NASA's newly-appointed chief technology officer."

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  • KDE SC 4.4.2 arrives with various bug fixes

    <b>The H Open:</b> "The KDE developers have released version 4.4.2 of the KDE Software Compilation (KDE SC), the latest bug fix release for the popular Linux desktop. In addition to several translation updates and stability improvements, the second KDE 4.4 update addresses a number of issues found in the previous 4.4.1 release."

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  • Running MySQL in Batch Mode

    Anyone who has spent a fair amount of time working with databases comes to realize that common tasks like backups and data transfers should be run from a script rather than interactively. In this tutorial, we will be writing a common batch file to back up a table to a file.

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  • Logitech Unify... how to use both the keyboard abd mouse on the same receiver?

    - by simon
    I bought this keyboard : tinyurl.com/7g3l2wt and this mouse : tinyurl.com/7kvkldm I am trying to use both on the same receiver, but so far i can't figure it out! i have tried this : https://github.com/treeder/logitech_unifier But i don't know how to compile it! if i paste ' gcc -o unify unify.c ' in the terminal, then i got this: gcc: erreur: unify.c: Aucun fichier ou dossier de ce type gcc: erreur fatale: pas de fichier à l'entrée compilation terminée. sorry it is in french... it say no files of this type and no file in the input... anyone can tell me how to compile it and then find my hidraw devices?? thanks

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  • La France voit l'iPad débarquer, la tablette d'Apple devrait sauver la presse payante, d'après la pr

    Mise à jour du 28/05/10 La France voit débarquer l'iPad La tablette d'Apple devrait sauver la presse payante, d'après la presse payante : vraiment ? Vous ne pourrez pas y échapper. Toute la presse en parle. Et va continuer à en parler. Nous ne nous attarderons donc pas sur la longue file d'attente des impatients au Carrousel du Louvre - ou sur l'AppStore de Montpellier (le seul de province) pris d'assaut par les fans - ni sur le dispositif marketing d'Apple avec ses « Concierges », son service de sécurité qui filtre les clients un par un et ses serveurs qui proposent le café au petit matin à ceux qui ont campé pour être les pre...

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  • Faulty memtest result

    - by dhojgaard
    I've been a bit suspicious about my RAM lately. They seem not work like i expect them to. For instance i run a lot of Virtual Test Environments in VMware Workstation and lately Ubuntu starts to lag just running 4 virtual machines each dedicated 512 MB. BTW im having 6GB memory on my laptop. This did not use to be a problem for me on my last laptop that even had a lot lower CPU resources. So i was led to try a memtest after reading some websites about RAM testing. So i did a memtest overnight but when i woke up this morning i was just looping and i could not Exit or do anything. It was just looping the number of errors besides test 7 which you can see in the lower right part of the screenshot. Can anyone interpret this screenshot for me? Do i have a faulty set of RAMs?

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  • SceneManagers as systems in entity system or as a core class used by a system?

    - by Hatoru Hansou
    It seems entity systems are really popular here. Links posted by other users convinced me of the power of such system and I decided to try it. (Well, that and my original code getting messy) In my project, I originally had a SceneManager class that maintained needed logic and structures to organize the scene (QuadTree, 2D game). Before rendering I call selectRect() and pass the x,y of the camera and the width and height of the screen and then obtain a minimized list containing only visible entities ordered from back to front. Now with Systems, originally in my first attempt my Render system required to get added all entities it should handle. This may sound like the correct approach but I realized this was not efficient. Trying to optimize It I reused the SceneManager class internally in the Renderer system, but then I realized I needed methods such as selectRect() in others systems too (AI principally) and make the SceneManager accessible globally again. Currently I converted SceneManager to a system, and ended up with the following interface (only relevant methods): /// Base system interface class System { public: virtual void tick (double delta_time) = 0; // (methods to add and remove entities) }; typedef std::vector<Entity*> EntitiesVector; /// Specialized system interface to allow query the scene class SceneManager: public System { public: virtual EntitiesVector& cull () = 0; /// Sets the entity to be used as the camera and replaces previous ones. virtual void setCamera (Entity* entity) = 0; }; class SceneRenderer // Not a system { vitual void render (EntitiesVector& entities) = 0; }; Also I could not guess how to convert renderers to systems. My game separates logic updates from screen updates, my main class have a tick() method and a render() method that may not be called the same times. In my first attempt renderers were systems but they was saved in a separated manager, updated only in render() and not in tick() like all other systems. I realized that was silly and simply created a SceneRenderer interface and give up about converting them to systems, but that may be for another question. Then... something does not feel right, isn't it? If I understood correctly a system should not depend on another or even count with another system exposing an specific interface. Each system should care only about its entities, or nodes (as optimization, so they have direct references to relevant components without having to constantly call the component() or getComponent() method of the entity).

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  • DOAG 2012 and Educause 2012

    - by Chris Kawalek
    Oracle understands the value of desktop virtualization and how customers have really embraced it as a top tier method to deliver access to applications and data. Just as supporting operating systems other than Windows in the enterprise desktop space started to become necessary perhaps 5-7 years ago, supporting desktop virtualization with VDI, application virtualization, thin clients, and tablet access is becoming necessary today in 2012. Any application strategy needs to have a secure mobile component, and a solution that gives you a holistic strategy across both mobile and fixed-asset (i.e., desktop PCs) devices is crucial to success. This means it's probably useful to learn about desktop virtualization, even if it's not in your typical area of responsibility. A good way to do that is at one of the many trade shows where we exhibit. Here are two examples:  DOAG 2012 Conference + Exhibition The DOAG Conference is fast approaching, starting November 20th in Nuremberg, Germany. If you've been reading this blog for a while, you might remember that we attended last year as well. This conference is fantastic for us because we get to speak directly to users of Oracle products. In many cases, those DBAs, IT managers, and other infrastructure folks are looking for ways to deal with the burgeoning BYOD model, as well as ways of streamlining their standard desktop and access technologies. We have a couple of sessions where you can learn a great deal about how Oracle can help with these points. Session Schedule (look under "Infrastruktur & Hardware") The two sessions focused on desktop virtualization are: Oracle VDI Best Practice unter Linux (Oracle VDI Best Practice Under Linux) Virtual Desktop Infrastructure Implementierungen und Praxiserfahrungen (Virtual Desktop Infrastructures Implementations and Best Practices) We will also have experts on hand at the booth to answer your questions on using desktop virtualization. If you're at the show, please stop by and say hello to our team there! Educause 2012  Another good example is Educause. We've gone the last few years to show off a slough of education oriented applications and capabilities in the Oracle product portfolio. And every year, we display those applications through Oracle desktop virtualization. This means the demonstration can easily be setup ahead of time and replicated out to however many "demo pods" that we have available. There's no need for our product teams to setup individual laptops for demos -- we can display a standardized Windows desktop virtual machine with their apps all ready to go on a whole bunch of devices like your standard trade show laptop, our Sun Ray Clients, and iPad. Educause 2012 just wrapped, so we're sorry we missed you this year. But there is always next year! Until then, here are a few pictures from this year's show: You can also watch this video to see how Catholic Education Australia uses Oracle Secure Global Desktop to help cope with the ever changing ways that people access their applications.  -Chris 

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  • Microsoft dévoilera son projet Natal le 13 juin 2010, lors de son E3 annuelle

    Microsoft dévoilera son projet Natal le 13 juin 2010, lors de son E3 annuelle La guerre des consoles de jeu de type "motion-controller" fait rage. Microsoft fait partie des concurrents avec son projet Natal. Il s'agit d'un système mains-libres, qui permettra aux utilisateurs de Xbox (et peut être aussi, par extension, d'appareils Windows) de contrôler quasiment tout ce qui s'affiche sur leurs écrans par leurs gestes. L'existence du projet avait été dévoilée l'année dernière, lors de l'E3 (conférence médiatique annuelle de la firme). Microsoft vient d'envoyer ses invitations pour l'E3 2010 (qui aura lieu le 13 juin à Las Angeles), en indiquant qu'y aurait lieu la première mondiale du projet Natal et de son &...

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  • "Les applications Windows Mobiles ne tourneront pas sur Windows Phone Série 7", confirme un responsa

    Mise à jour du 09/03/10 NB : Les commentaires sur cette mise à jour commencent ici dans le topic "Les applications pour Windows Mobiles ne fonctionneront pas sur Windows Phone Série 7" Le Responsable Microsoft des relations avec les développeurs le confirme C'était le risque en repartant "from scratch". Microsoft vient de le confirmer, les applications actuelles pour Windows Mobile ne pourront pas tourner sur le futur Windows Mobile 7 Series.

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  • Time to Abandon AIM

    <b>OStatic</b> "AOL has closed the doors on its Open AIM program. Pidgin developer Mark Doliner where to go from here to support AIM, but maybe it's time to close the door on the protocol altogether."

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  • 60% des sociétés utiliseraient PHP pour des applications critiques d'après Zend, qui édite des solutions PHP

    60% des sociétés utiliseraient PHP pour des applications critiques D'après Zend, qui édite des solutions PHP Zend (« the PHP Company ») vient d'annoncer la sortie d'une étude sur « l'état de PHP en entreprise » qui porte sur la façon dont les décideurs utilisent ou vont utiliser PHP. L'étude révèle que PHP serait largement utilisé pour développer et gérer diverses applications critiques. Parmi les raisons qui font que, d'après Zend, l'adoption de PHP s'accélère, « on peut noter les cycles de développement plus rapides lorsqu'on les compare à d'autres langages, un vaste pool de ressources humaines disponibles, une efficacité des processus de développement applicatif amé...

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  • Dual Monitor/Xinerama not working; cannot even detect on-board graphic card

    - by Steven H
    I have Kubuntu 12.04 and two identical VGA monitors. One I plugged via DVI-VGA adapter into the DVI port of my discrete AMD Radeon HD 6670, the other into the VGA port of my on-board graphic card (Radeon HD 6410D). After installing Kubuntu I got a black screen, so I booted with nomodeset and installed AMD's catalyst drivers but only the monitor plugged into the discrete graphic card worked. Using lspci I saw that the on-board graphics was not listed. Then I found in the BIOS settings the options "Surround View" and "Onboard Dual Link DVI" both disabled. After enabling both, the on-board graphics card shows up in lspci but in amdcccle, it only shows as [Uknown display]Uknown adapter. When I try to enable xinerama, I get a black screen after rebooting on both monitors. I tried several options and hints from the web but nothing worked so far. I also reinstalled the AMD drivers several times. What should I do?

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  • Thread travailleur avec Qt en utilisant les signaux et les slots, un article de Christophe Dumez traduit par Thibaut Cuvelier

    Qt fournit des classes de threads indépendantes de la plateforme, une manière thread-safe de poster des événements et des connexions entre signaux et slots entre les threads. La programmation multithreadée s'avantage des machines à plusieurs processeurs et est aussi utile pour effectuer les opérations chronophages sans geler l'interface utilisateur d'une application. Sans multithreading, tout est fait dans le thread principal.

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  • Java serait un "Roi légèrement enrhumé", un cadre de Google appelle Oracle à le remettre d'aplomb

    Java serait un "Roi légèrement enrhumé" Pour un cadre de Google qui appelle Oracle à le remettre d'aplomb Josh Blosh, "Chief Java Architect" chez Google, vient de participer au Red Hat Middleware 2020. Lors d'une intervention particulièrement remarquée, il a regretté que la plate-forme Java soit « restée sans maître à bord (rudderless) depuis plusieurs années ». D'après lui, un malaise durable se serait même emparé de la communauté. La principale explication tiendrait au fait que « les disputes techniques et liées aux licences », particulièrement préjudiciables, ont « sapé l'énergie de la communauté et provoqué beaucoup de mauvaise presse »

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