Incorrect documentation of `CoreWebView2.AddHostObjectToScript` for WinRT

[softworkz]

The documentation for AddHostObjectToScript is incorrect. It's obviously copied from the documentation for the .NET version of WebView2, but for WinRT, the procedures are different (and complicated unfortunately):

https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2?view=webview2-winrt-1.0.2065-prerelease#addhostobjecttoscript

For WinRT, an insane effort is required which involves creating a separate project for the classes that should be exposed and it also requires adding a C++ project (like WinRtAdapter in the code sample), which creates WinRT/COM definitions, which finally need to be wrapped again via methods from ICoreWebView2DispatchAdapter. (roughly like that)

These procedures are not documented and the current description is wrong for WinRT.

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AB#46593196 - Deliverable, auto-created AB#51566922 - Bug, for triage

[mikehoffms]

Related article: Call native-side WinRT code from web-side code https://learn.microsoft.com/microsoft-edge/webview2/how-to/winrt-from-js

[softworkz]

Related article: Call native-side WinRT code from web-side code learn.microsoft.com/microsoft-edge/webview2/how-to/winrt-from-js

Yes, I know that article - which is providing correct information.

But the part I referenced above is incorrect.

[captainbrosset]

Thank you for reporting this. I'm making sure this goes into our backlog.

[mikehoffms]

added 2nd AB# at top, for Bug that's being triaged