May be this example [doc.qt.nokia.com] is good for you. Many types of windows are demonstrated.

It is also there in QtCreator welcome->choose an example ->widgets -> window flags. Worth looking, i guess. Good Luck.

Thank you for your reply. Unfortunately none of these examples it’s what I need. So I ended up by doing a custom dialog without frame decorations. In this dialog I’ve placed a dark background color and then I’ve used an overlying element a little smaller so the background looks like a border.

Thats cool. :) So, it is solved :)

More or less…it’s a dirty workaround.

Split off a new issue [developer.qt.nokia.com] on this, but on the linux desktop.