Size differences in GetViewRect(..) and OnPaint(..)

[callum]

Using CEF Win64 3.3202.1686.

Under some conditions, changing the size of my off-screen browser (e.g. when a video is playing - IE contents of screen changing every frame) I see a discrepancy between the width/height set in my implementation of CefRenderHandler::GetViewRect() and what is passed into my implementation of CefRenderHandler::OnPaint(..)

I change the size of the browser when my app windows is resized by updating the variables I pass back in CefRenderHandler::GetViewRect() and subsequently calling CefBrowser::GetHost()::WasResized();

Is this the correct procedure for resizing a CefBrowser on Windows?

[magreenblatt]

Your procedure sounds correct. The size change is asynchronous so you might receive a few frames at the old size before the new size takes affect.

[callum]

Yep, understood and I take account of that and don't update pixels if the sizes differ on the basis I'll eventually get a size in OnPaint that matches.

[callum]

The really odd thing is that if I open my app to google.com then, from there, visit the YouTube URL, I see the mismatch but if I open into the YouTube URL directly, everything works as expected. The behavior is very reproducible and doesn't appear to do the same thing for start URLs other than google.com

I can't think of a reason why that would be.