VCL TEdgeBrowser not initialising

[Incus J 10]

I have VCL TWebBrowser working in “EdgeOnly” mode (SelectedEngine) in a simple test app.

 

It’s loading pages and I can browse sites.  So far so good.

 

I’d like to execute some Javascript and obtain a result.  I’m happy to stick with TWebBrowser if it’s possible.  Must be in EdgeOnly mode though!

 

On the other hand, TEdgeBrowser has built in Javascript execution.  So maybe I should switch to that component - except I can’t get it to work.

 

When I run my test app, TWebBrowser loads OK, but TEdgebrowser remains a grey empty background and ignores all commands to Navigate etc. - I suspect it isn’t initialising.  No error messages.

 

WebView2Loader.dll is present in the app folder - and TWebBrowser is using it successfully.

 

Given that TWebBrowser is working in EdgeOnly mode, what am I missing with TEdgeBrowser?

 

Delphi 12.3 on Windows 11 (Arm, 24H2 64-bit).

[Der schöne Günther 336]

4 minutes ago, Incus J said:

No error messages.

The TEdgeBrowser has an event handler to catch initialization (OnCreateWebViewCompleted and OnProcessFailed). Have you checked those?

[Incus J 10]

Yes, I have an event handler assigned to each of those events - just to log any activity to a TMemo.  Neither event is triggered.

[Der schöne Günther 336]

I am using TEdgeBrowser excessively, up to the point of completely replacing a VCL-based UI with a web-based interface, as well as injecting and calling JavaScript at runtime.

 

Can you provide a minimal example of your project?

 

One caveat is that you have to wait for the TEdgeBrowser to finish navigation and _then_ do something with its content, but I suppose that is the same when being wrapped by TWebBrowser.