I am developing an app for Microsoft surface hub. I have a requirement wherein when the user clicks on a button , there is a countdown timer running on the desktop of the surface hub. The timer is not the part of the app but the app can start and stop the timer .
Even if my app is minimized , the timer should be shown ticking on the top right corner of the Surface Hub.
As far as I understand that the timer can be a part of the UWP app and when the app is minimized or in the background , the timer wouldn't be visible . My requirements ask me to display the timer if the user selects "show timer" from my app and it doesn't have to be a part of the app but can be controlled by the user.
How is this possible in UWP and is running a windows service can help?
I am completely new to this and seeking some advice and some samples that go well with the UWP app
You may use the Picture in Picture mode to show your app above other windows. AFAIK this is the only way how to do something like an overlay.