Office background task handler pop up9/14/2023 This sample is also available in JavaScript and C++. The code examples shown in this topic are based on the C# version of the Print settings and print notifications sample. For more info, see the Printer extension library overview. The printer extension library provides a convenient way to access the printer extension interfaces of the v4 print driver. To work with print notifications, the sample uses the printer extension library in the PrinterExtensionLibrary project. The file shows one way that notification details can be accessed from the foreground app. The foreground app, the full-screen app that can be launched from Start, is in the DeviceAppForPrinters project. The code for the background task is in the PrintBackgroundTask.cs file. The C# version of the Print settings and print notifications sample demonstrates the background portion of the app ( the background task) in the BackgroundTask project. To learn more about UWP device apps in general, see Meet UWP device apps. The background task demonstrates how to save notification details in the local app data store, send toasts, and update a tile and badge. This topic introduces print notifications, and shows how the C# version of the Print settings and print notifications sample uses a background task to respond to print notification. In Windows 8.1, UWP device apps can respond to bidirectional communication (Bidi) events that are sent from a v4 print driver.
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