Monday, 15 October 2012

File Manipulation in Windows 8 Store Apps

File Manipulation in Windows 8 Store Apps
The IO Subsystem in WinRT has been written ground up to be completely async.In this article, we see how we can manage (Create and Update) binary data in Files using the Windows 8 runtime.

As we know now, Windows 8 Store Apps are a new category of desktop apps that are touch-centric and run on the new WinRT runtime on Windows 8. In this article, we see how we can manage (Create and Update) binary data in Files using the Windows 8 runtime.

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Windows Runtime Components in a .NET World

The new type of program known as a Windows Store app—optimized to run on Windows 8 devices—has a default view with a full-screen window and no distracting chrome, so the content is the focal point. Windows Store apps support fluid layouts that adapt and scale to a variety of screen sizes and resolutions. They provide a touch-first experience while providing full support for the traditional keyboard and mouse.

Windows Store apps run on a new set of APIs called the Windows Runtime (WinRT). The Windows Runtime exposes components that are built as part of the Windows 8 OS along with third-party components you can develop yourself. Although some core Windows Runtime Components are accessible from desktop apps, third-party Windows Runtime Components are only available from within the Windows 8 environment. WinRT types are described using WinRT metadata files that have the .winmd extension. These files are encoded using the same standard the Microsoft .NET Framework uses for providing metadata definitions and semantics for classes, ECMA-335 (see

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Interacting with Windows 8 Maps app using WindowsMapsHelper library

Windows 8 is shipped with preinstalled Maps application. This app provides all basic mapping features such us showing current location, searching for place or local business and calculating driving directions. Even better, Maps app implements bingmaps protocol to allow 3rd party applications to activate these features. There is just one disadvantage of the protocol: it’s basically a URL string and all numerous parameters need to be properly formatted.

WindowsMapsHelper library aims to simplify communications with Maps app. It encapsulates maps protocol into a few strongly typed classes.

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Source code at GitHub
NuGet Package Here
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