Packages the binary using either static asset packaging or container installation (the latter being useful for Electron applications with complex installation procedures).In detail, the tool does the following operations: To compile Electron Apps into the Windows Store application format AppX, we contributed heavily to electron-windows-store, which automates the path from pure Electron app to AppX. At runtime, Windows puts Win32 binaries into a virtual environment - write operations to the disk or the registry are virtualized, ensuring that the app leaves no trace after uninstallation. Under the hood, the Windows Store application format AppX is essentially a zip file that contains an application manifest, static assets, and the binary executable. In short: To access the full range of WinRT, we also need to wrap Electron in a Windows Store application package. Many APIs, like the Live Tile API, assume that the calling application is a Universal Windows App - and look for the Store’s package identity to distinguish between applications. Using namespace Windows::System::UserProfile Ĭreate_task(myFolder->GetFileAsync(“image.jpg”).then((StorageFile^ imageFile) ) Example: Setting a Lock Screen Image using namespace Windows::Storage In Electron, this allows us to replace custom C++ with JavaScript. The open-source project NodeRT uses WinRT’s descriptive metadata files to iterate over the body of APIs, automatically generating native Node addons for each WinRT namespace. Using dynamically-linked shared objects, written in C or C++, they can be used just as if they were ordinary Node.js modules. Sneaking Electron into the ClubhouseĪt the heart of Electron lies Node.js, which can interface with native code through “native addons”. It’s the home for the most interesting and most powerful aspects of Windows: If you’d like to interact with hardware, lock screens, payments, notifications, or Cortana, you’re talking to WinRT to make it happen. In addition, apps built on top of the Universal Windows Platform get to communicate with Windows through a set of APIs found in the Windows Runtime (usually just called WinRT). On top of that, it integrates deeply with Microsoft’s IT management tools for enterprises and sysadmins who need to manage software on thousands of machines. The store isn’t just a way for users to discover applications - it also offers one-click installations and “no files or registry items left behind” uninstallations. The Windows Store was previously only available to Universal Windows Apps, which are in many ways the evolution of the good old exe. WinRT: A clubhouse for the most powerful Windows APIs Given that we conquered new lands, we wanted to share some of our discoveries. Slack partnered with Microsoft to pioneer a way for Electron apps to run within the confines of the Windows Store and to integrate with Windows Runtime APIs. It is one of the first applications to make use of Microsoft’s “Desktop Bridge”, previously known as Project Centennial. This week, we launched Slack for Windows 10 in the Windows Store. The Slack Desktop Client is powered by Electron, the same framework that enables Atom, Visual Studio Code, and Basecamp to deliver delightful desktop apps built with web technologies.
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