Error on exit when MultiThreadedMessageLoop is disabled

[xpert13]

Can you explain me why my app show me an error when I try to disable MultiThreadedMessageLoop?

Code: Select all

GlobalCEFApp.MultiThreadedMessageLoop := False;

[salvadordf]

I've added an issue to github about this problem :
https://github.com/salvadordf/CEF4Delphi/issues/71

For now, there's no fix for that crash.

[xpert13]

Any ideas how to fix it?

I tried to find solution in Google but got no results

[salvadordf]

Nothing yet... I'll keep looking.

[salvadordf]

The CEF3 code comments recommend to use GlobalCEFApp.MultiThreadedMessageLoop := False with GlobalCEFApp.ExternalMessagePump := True.
In that case we have to use the GlobalCEFApp.OnScheduleMessagePumpWork event to schedule the calls to CefDoMessageLoopWork.

The official CEF3 sample application use this event but the CEF4Delphi demos don't use it and it could be a clue of what's causing this problem.

I'll keep looking as soon as I can...

[xpert13]

I don't think that it will fix this error.

I tried to use cef_run_message_loop instead calling cef_do_message_loop_work in timer and it's didn't help. Application crashed with the same error on exit;

[salvadordf]

I fixed the issue but you'll have to set GlobalCEFApp.ExternalMessagePump to True too.

Please, download the latest CEF4Delphi version and read this :
https://www.briskbard.com/forum/viewtopic.php?f=8&t=222

[xpert13]

Thank a lot for your help. But I can't understand how to destroy browser properly. I didn't use TCEFWindowParent. What I need to write in this function?

Code: Select all

procedure TExternalPumpBrowserFrm.BrowserDestroyMsg(var aMessage : TMessage);
begin
  CEFWindowParent1.Free;
end;

[salvadordf]

I'll add another demo for the TChromiumWindow tomorrow

Edit : I think I answered too fast... I'll take a look tomorrow but it's possible you may have to use TChromium + TCEFWindowParent combination.

[xpert13]

Thank you. You are the best!!!