Windows 10 universal app - Run in fullscreen mode by default

Question

I have application with target windows 8.1 and when I run this application on Windows 10, it is run in small window by default.

Because it is primary tablet application I need it to run in full-screen mode by default. Is it possible to set it somewhere in Visual Studio or in some config of the application?

Verniavernice

The porting guide is here. I assume you are looking for the section way at the bottom, as good as it gets. – Watercolor

Answer 1

To launch application in full screen mode, try setting ApplicationView.PreferredLaunchWindowingMode as early as in App.xaml.cs's constructor

public App()
{
    ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.FullScreen;

To have a button that toggles the full screen mode, do

var view = ApplicationView.GetForCurrentView();
if (view.IsFullScreenMode)
{
    view.ExitFullScreenMode();
}
else
{
    view.TryEnterFullScreenMode();
}

However, I need to add that even without specifying any of the code above, when you open your app inside a Windows 10 tablet or a Windows 10 desktop with Tablet Mode enabled, the app will automatically maximise itself to full screen.

As long as your app is available on Windows 10 Desktop devices, I would recommend you not to set it to full screen at start-up 'cause UX wise it's a lot easier for desktop users to work with windowed applications.

Douma

Thanks for advice. But did you mean store application. Because your code is not available in windows store universal app. prntscr.com/8hv4mh – Verniavernice

Now I see, this code is available only in Windows 10 universal app. I'm trying this in windows 8.1 app – Verniavernice

Make sure to add 'using Windows.UI.ViewManagement;' to the top off your App.xaml.cs – Shattuck

Answer 2

And in C++ :

Windows::UI::ViewManagement::ApplicationView::PreferredLaunchWindowingMode = 
Windows::UI::ViewManagement::ApplicationViewWindowingMode::FullScreen;

Ilowell

Answer 3

try this:

this.InitializeComponent();
ApplicationView.GetForCurrentView().TryResizeView(new Size(1360, 768));

Friedland