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Mastering Windows 8 C++ App Development by Pavel Yosifovich

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Push notifications

As we've seen, an application can set its tile (and optional secondary tiles) in any way that's reasonable; it can even update the tiles if new information is received. But what happens if the application is suspended? How can it update its tile? Worse, the application may not be running at all. How would its tile get updated? Imagine a news app that may want its tile to reflect recent news.

One way to do this is with push notifications. As the name suggests, the notifications are pushed by a server onto the device that may or may not be running the app at the time. This is in contrast to a pull model, where some part of the app polls some server for new information. Push notifications are energy efficient and don't require the ...

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