How to resume WP8 apps by click app icon again

Question

I am writing a C++ DirectX application without XAML for Windows Phone 8.

first I use win key or long press back key to hang the app. and then click the icon , the app will restart not resume.

same as lots of games in store and the default template cube DirectX sample app.

but Gameloft's game Asphalt 7, when i click the icon, it resume the game (it resume without loading , so I am sure that it is resumed ,it is not restated)

how can resume the apps by click icon.

and another question, how could I declare my apps as a game (it will be listed in "XBOX GAME"). I used to think it will be declared when submitting. but when I tested a lot xap file, I find that it is declared in xap file,not a information defined in app store.

Answer 1

You can achieve this by implementing "fast app resume". You can read about this on MSDN here.

The question about game categorization has been covered before at How to make an app appear in games (xbox) section of wp 7/8.