How to modify registry in packaged WinUI project?

Question

I am working on a packaged WinUI project.

And I need to launch the app from browser, so I need to write this to registry:

HKEY_CLASSES_ROOT\AppName\shell\open\command(Default)

The registry key value is:

"[TARGETDIR]AppName.exe" "%1"

So how to add this registry key when app is deployed?

(I work with WPF project before, I can create "Windows installer project", and then modify registry setting in installer project. But now is WinUI, there is no "Windows installer project" I can use...)

Answer 1

Hello @aluzi liu,

Use the windows.protocol extension. See Handle URI activation. For an example, see WinUIGallery.

<uap:Extension Category="windows.protocol">
 <uap:Protocol Name="winui3gallery">
  <uap:DisplayName>WinUI 3 Gallery</uap:DisplayName>
 </uap:Protocol>
</uap:Extension>