Notification window in Mac. With or without Qt

Question

Qt project on Mac OS X. I need to show notification window on top without stealing a focus from any active application.

Here the widget constructor part:

Answer 1

Ive just tested these flags

Qt::FramelessWindowHint |Qt::WindowSystemMenuHint |Qt::WindowStaysOnTopHint

And

 setFocusPolicy(Qt::NoFocus);
 setAttribute(Qt::WA_ShowWithoutActivating,true); 

Without Cocoa or Carbon code for window flags/masks. And notifyWindow works like on Windows or Linux.