Q:

WinRT/Windows 8 app - "Connecting to a service" control?

Is there a specific control for the "Connecting to a service" window? Or is it a flyout-type control (or something else) with an embedded WebView?
Thanks.
Example 1, Example 2

A:

That looks like the WebAuthenticationBroker used to connect to oAuth providers. It hosts an internal WebView and manages the callbacks to support single-sign-on via your identity provider.
See Authentication and user identity (C#/C++/VB) and the Web authentication broker sample for details.

