UWP C++ Fullscreen snippet

uwp_changeToFullscreen.cpp

// Made this code to change to fullscreen, useful if you're creating a DX application in vs2015/c++/uwp
// Also look at this sample: https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/FullScreenMode/cpp
// And this MSDN page: https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.viewmanagement.applicationview.preferredlaunchwindowingmode?cs-save-lang=1&cs-lang=cpp#code-snippet-1
// preferred mode in constructor
App::App() 
{
    // starts with this window size
    Windows::UI::ViewManagement::ApplicationView::PreferredLaunchViewSize= Windows::Foundation::Size(800,600);
    Windows::UI::ViewManagement::ApplicationView::PreferredLaunchWindowingMode = Windows::UI::ViewManagement::ApplicationViewWindowingMode::PreferredLaunchViewSize;
}

// call to this to set to FS
void App::ToggleToFullscreen()
{
    auto av = Windows::UI::ViewManagement::ApplicationView::GetForCurrentView();
    if (!av->IsFullScreenMode)
    {
        if (av->TryEnterFullScreenMode())
        {
            av->FullScreenSystemOverlayMode = Windows::UI::ViewManagement::FullScreenSystemOverlayMode::Minimal;
        }
    }
    else
    {
        av->ExitFullScreenMode();
        av->FullScreenSystemOverlayMode = Windows::UI::ViewManagement::FullScreenSystemOverlayMode::Standard;
    }
}