How can i expand a form with a push button?

[Bong.Da.City]

You know, for example when you download on ubuntu something from the synaptic package manager. You have something like that..

http://i36.tinypic.com/2hfkyzm.jpg

If you press the button+ or the label (Show for individual files) the form is expanding and it shows more details..

http://i34.tinypic.com/16jphqu.jpg

So how can i do this? ( Sorry for the screenshots that the one is on downloading and the other is on installation. But you can understand what i am asking .)

[saa7_go]

You can look at Expanding Dialog example (http://www.qtcentre.org/wiki/index.php?title=Expanding_dialog).

[Bong.Da.City]

It doesn't work for me. When i debug it just saw me an empty QDialog...

[saa7_go]

It doesn't work for me. When i debug it just saw me an empty QDialog...

Really? It works for me.

[Lykurg]

And again: Don't use 3rd party sites to host your pictures, add them on the forum.