A few weeks ago, my friend David Rousset wrote an excellent article about “benchmarking your sprites animations to target all devices & browsers” . This article used a benchmark framework called “HTML5 Potatoes Gaming Bench” to obtain a consistent...

Javascript is a wonderful language for developing Windows 8 apps. As a untyped, dynamic language, Javascript is really flexible but sometimes if you are not careful you may leave some memory leaks in your code. But do not worry, Visual Studio includes...

Following my previous article on “Reading PDF and XPS on your Windows 8 application using WinRT”, I would like to share with you the same example but with Javascript code.

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PDF and XPS file formats are widely used across the world and you could need one day to display them inside your application.

Today I would like to share with you a simple way to do so by using an open source solution: MuPDF (a multiplatform lightweight PDF and XPS viewer).

MuPDF is already working on a WinRT solution you can grab on this GIT repo: http://git.ghostscript.com/?p=user/mvrhel/mupdf.git;a=summary

I also used the work of Libreliodev and especially their advanced port of MuPDF for WinRT.

The result is a simple but really useful Windows 8 Modern UI app that is able to display a PDF/XPS file: http://www.catuhe.com/msdn/pdfreader.zip

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Chers développeurs, je vous propose d'inviter ceux d'entre vous qui sont intéressés à une après-midi de rencontres avec des diplômés de l'Ecole Supérieure de Commerce de Paris. Ces diplômés...

For your Windows 8 applications, you may need to generate a unique identifier (for instance, if you want to uniquely identify your users). To do so, here is a small C++ WinRT component (I decided not to use C# to make the component light-weighted because...

As you may know, you can easily develop native applications for Windows 8 using JavaScript and WinJS.

Among a lot of other things, WinJS allows you to create custom control in order to factorize your UI.

Today, I would like to show you how to create this kind of control and to do so, please let me introduce you with the final version of the control:

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Ben voila, tout est dans le titre Développeurs c’est le chef Coding4Fun 2013 Geek is in the house

After creating a GIF file using my previous article, I propose you to use the power of WinRT to create a component in order to produce video file from your drawings (using for instance a canvas with Javascript).

To do so, we will use Media Foundation COM components. Media Foundation is the next generation multimedia platform for Windows that enables developers, consumers, and content providers to embrace the new wave of premium content with enhanced robustness, unparalleled quality, and seamless interoperability.

And as I said before, Media Foundation is based on COM components. But thanks to C++ projects for Windows Store, we can create a WinRT component on top of Media Foundation in order to use it from our Javascript or .NET projects.

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Why using GIF files? For one of my project ( Flipflop : http://apps.microsoft.com/windows/app/flipflop/99c01512-fe4f-4d1a-872e-eb9fd6638ff4 ), I needed to create an animated GIF based on a group of HTML5 canvas. A GIF produced by Flipflop The main goal...

A good-looking application must provide user with visual feedback. User must always know that an order (a click, a tap or whatever) is well received and understood by the application and animations are a great tool to do so. The new HTML 5 specification...

During a French event called TechDays 2013, I presented a session called “ Coding4Fun ”. And during this session, I demoed a game called Kinect Dawanoid . The goal of Kinect Dawanoid is to control a paddle (the racket of the Arkanoid game) with ambient...

How about being able to write a single code base for handling mouse, pen, touch in your web site that will work across all modern browsers? Here is a polyfill that will help you use Pointer Events and offer users a great experience on your site independently...

On s’est enfin remis de cette semaine de folie. Du coup voici l’intégralité des démos et des “slides”: Pierre et Julie http://blogs.msdn.com/b/juliekn/archive/2012/11/09/nfc-comment-faire-communiquer-vos-applications-windows-phone-8-et-windows-8.aspx...

Ce fut encore une session puissante, fine et intellectuelle que cette Coding4Fun 2013 !! Comme vous êtes des milliers, que dis-je, des millions à me le réclamer, voici les trois démos que j’ai faites: Chaos Philosopher : http://www.catuhe.com/ms/chaosphilosopher...

Hello, vous le savez sans doute déjà mais dés demain (Mardi 12/02), les TechDays 2013 vont ouvrir. J’animerai notamment les sessions suivantes : Développeurs, c’est vous le chef ! Microsoft aime les développeurs et cette année encore les développeurs...

    Les vidéos du dernier DevCamp : Comment optimiser la gestion de ses données sur Windows 8 et Windows Phone 8 sont disponibles sur la Chaine développeurs. Tour d'horizon des APIs de stockage et des stratégies à adopter en fonction des données...

I love JSON format. It is human readable and really fast to serialize to and deserialize from. However the major drawback of JSON is its size on disk. The following code will show you how to leverage System.IO.Compression (from .NET) to reduce the disk...

Les applications modernes dans Windows 8 et Windows Phone 8 placent le contenu au premier plan et offre aux utilisateurs la possibilité d’interagir directement avec celui-ci. Encore faut-il l’avoir chargé… D’une manière générale la gestion des données...

One issue I have with UrzaGatherer is related to the search. As you may know, I have a huge list of cards saved locally and my application allows the user to search specific cards using a part of their name. But browsing more than 20 000 cards using a...

Parallax background is a really simple but extremely cool feature you can add to your application. You just need a div containing your background picture and a listview on top of it: < div id ="backgroundHolder"> </ div > < div...

Performance is always an important point in any project. And you must be well equipped to find potential issues in your code in order to provide the best experience for your user regardless of the device he uses. In my case, I had an issue with UrzaGatherer...

There is a lot of different file format when it comes to 3D objects. One of the most used is the FBX from Autodesk. This file format can be exported by all major DCC but the key point is that it can be complex for a game or 3D developer to open such file...

Suite à ma session pour la journée des communautés j’ai le plaisir de vous partager mes slides que vous pourrez réutiliser à loisir: http://www.catuhe.com/msdn/Comment gagner de l'argent avec Windows 8.pptx

If you are developing a WinRT component using C++ (good idea!), you could have some issues with the validation process: The key point is that all calls to vccorlib110.dll (The C++ runtime used by Visual Studio 2012) are marked as not supported: ”API xxxxx...