Transparent & blur
How people doing windows and widgets look like KDE Plasma or Windows Aero style?
I mean background transparent and blur but controls are in normal view.
The window frame is handled by the window manager (so, the OS). If you want to hook up into that, you need to go into OS-specific APIs, as far as I know. There are some tricks that Qt allows you to do (QStyle, etc.) here, though.
I shown this image only for clearity :). But i saw many apps that look like that, no mater what OS and what style on it.
With setGraphicsEffect() i can set blur and other effects. But how make parent window with effect but child widgets without any GraphicsEffect?
I never played with those. but you can take a look at:
Check this. Not perfect, but it's the idea: http://deadbird.fr/?p=800
Thank you deadbird :)