Implement multi threaded message loop on Windows to improve performance. Create example.

[GoogleCodeExporter]

UPDATE: It was tested and it is already possible to use multithreaded message loop on Windows. To do so set ApplicationSettings."multi_threaded_message_loop" to True and run a native message loop in your app. Don't call CEF's message loop. Create browser using PostTask(TID_UI, CreateBrowserSync, ...).

Keeping this issue still Open, as it would be nice to have this be shown in one of examples, possibly hello_world.py.

See ApplicationSettings."multi_threaded_message_loop". Multi threaded message loop may help improve performance in some applications. For best performance it is recommended that multi threaded message loop is used instead of external message pump on Windows platform (Issue #246).

It may be useful to implement CefBrowser::CreateBrowser to create browser asynchronously. CreateBrowserSync must be called on the UI thread and when running multi threaded message loop the main thread is no more the UI thread. So it is required to call CreateBrowserSync using PostTask(TID_UI).

See main_message_loop_multithreaded_win.cc in upstream. We could copy this file similarly to how external message pump is implemented.

Original issue reported on code.google.com by czarek.t...@gmail.com on 13 Aug 2014 at 8:05

[cztomczak]

There is now an official pywin32.py example that uses multi threaded message loop when "--multi-threaded" arg is passed (changedsto thos example will be commited in a few moments).