Hello!
To get to some users to use Windows Universal Apps sometimes can be a challenge. Therefore, tasks such as managing the FullScreen mode or set a specific size in a window are important stuff to add into our apps.
The following lines of code show how to change state Full Screen to normal state and define a specific size for our application.
The app running as an example in the attached video and source code on GitHub https://github.com/elbruno/Blog/tree/master/WindowFullScreenAndCustomSize
Greetings @ Madrid
-El Bruno
El Bruno 