Two newby questions

[rotolino]

Hello,

I'm wondering if any of _cef_browser_settings_t's flags (webgl_disabled, accelerated_compositing_disabled, etc.) can be changed to improve the performance of a web page that displays a flash game. Is there any other tweak anywhere that can help? (I'm targeting the windows platform)

Also, how can I scroll down a page programmatically? Is sending a WM_VSCROLL message enough?
Thank in advance.

[magreenblatt]

I'm wondering if any of _cef_browser_settings_t's flags (webgl_disabled, accelerated_compositing_disabled, etc.) can be changed to improve the performance of a web page that displays a flash game.

The flags you mention are related to HTML5 features. They shouldn't have an affect on Flash. Are you currently experiencing Flash-related performance problems with CEF that don't occur with Chromium?

Also, how can I scroll down a page programmatically? Is sending a WM_VSCROLL message enough?

There are plans to introduce an API for programmatic control of scrolling but it doesn't yet exist. You're likely best served by using JavaScript to scroll the window via CefFrame::ExecuteJavaScript or similar.

Regards,
Marshall

[rotolino]

I can't say CEF is slower than chrome when it comes to flash, as I don't know how to measure the performance precisely; but I can say that when multi_threaded_message_loop is true I can feel the game animation is smoother, on my pc.

That's why I'm wondering whether is there any other flag I can try.

[magreenblatt]

... I can say that when multi_threaded_message_loop is true I can feel the game animation is smoother, on my pc.

Are you using an application framework like .NET, MFC, etc? Where are you calling the CefDoMessageLoopWork() function? Most likely your application is doing too much work in its message loop which is starving the browser message loop to some degree. In any case, it's perfectly fine to use |multi_threaded_message_loop| if that gives you better results.

[rotolino]

It's a plain Win32 application, with no MFC/.net
When using CefDoMessageLoopWork the flash game blocks for some milliseconds every 4-5 seconds; running a separated thread works perfectly.

Thanks for replying.