How to add support for resizing when using an undecorated JFrame?

Question

I would like to customize my titlebar, minimize-, maximize- and the close-button. So I used setUndecorated(true); on my JFrame, but I still want to be able to r

Answer 1

I found a nice method in RootPane that gave me this functionality, so now I only have to find out how to customize the titlebar and the buttons on it.

I added this.getRootPane().setWindowDecorationStyle(JRootPane.FRAME); in my constructor for UndecoratedFrame.

There is some more reading about this on Sexy Swing App – The Unified Toolbar and How to control window decorations