问题:

How can I access the protocol activation arguments in a Winforms app that's converted into a UWP app?

The problem is that the OnActivated method is absent so I can't get the IActivatedEventArgs.

回答1:

I'm assuming you want to handle file types in which case you can check Environment.GetCommandLineArgs() as normal for arguments. The second argument will be the file or protocol activated.

回答2:

How can I access the protocol activation arguments in a Winforms app that's converted into a UWP app?

The lifecycle can't be integrated in Converted UWP app. Basically the common scenarios are enabling Toast notification, Live tile, App service and Background task.

Please check Supported UWP APIs for converted desktop apps

Some official samples: DesktopBridgeToUWP-Samples