CEF background paint issue

[mumutou]

Hi all .
My project use QtWebkit to display the html, now I want to use CEF to replace it. But I found a issue.

My widget contains the cefclient_win, but when I display the html, I can not make it transparent.

examples:
parent widget show a image, cefclient window display the html (such as display string "hello world"), and I set the html background color is transparent, but I can not show the image of background. The image is lay over by white color. How can I make it works?

thanks very much.

best regards

[magreenblatt]

On Windows? What CEF version?

[mumutou]

OS:windows 7
CEF version:3.1547.1412


thanks very much

[mumutou]

branches/1547/cef3@1412

[magreenblatt]

See viewtopic.php?f=6&t=10504

[mumutou]

I don't want to use SetLayeredWindowAttributes API, This API only replace the color.

I think It is only do paint the window background, so maybe have a way to make window background paint disabled.

maybe I want to see the code of chromium? or It is a API to disable it.


thanks very much.

[mumutou]

The API of SetTransparentPainting is only support offscreen?

[magreenblatt]

The API of SetTransparentPainting is only support offscreen?

Correct.

[mumutou]

thanks very much.