how to implement this MainWindow just like iTunes

[yxmaomao]

As you know, default for main window there is icon + title at the left-most, min/max/close buttons at the right-most, border lines at four directions' boder which you can resize the window.

at the bottom of the windows title and icon there is MenuBar then Tool Bar

But when you run the iTunes, you can see these are different.
So could you tell me how to impelment the mainwindow like the iTunes.
I have try to setWindowFlags( Qt::FramelessWindowHint ), but in this case I can't get
the resize indicator at the four direction's border, at the same time all the relative system's hint menu will be lost.