How can I handle OnSuspending with WinUI 3

Question

This time I must migrate an UWP App to WinUI 3, so far everything has worked well except for a few small things but the event OnSuspending is simply not triggered. In the namespace Windows.UI.Xaml you could easily use

this.Suspending += OnSuspending 

in app.xaml.cs and it wasn't a problem, in Microsoft.UI.Xaml I can't do this. I have now declared a SuspendingEventhandler in app.xaml.cs

public event SuspendingEventHandler Suspending; 

but this just doesn't work. How can I solve this problem?

Answer 1

WinUI 3 can be used to build desktop/WIn32 Windows apps (see the docs) and this kind of apps are not suspended so there is no Suspending event ever being raised.