gtk expander

[Fernando Apesteguía <fernando apesteguia gmail com>]

Hi,

I have a problem with gtk expander. I create that object and put it in the
window, using Glade. But how can I attach controls to the expander so when I
click on it the controls are showed and when click again they aren't?

I've visited http://developer.gnome.org/doc/API/gtk/ but there is no
information about any Gtk Expander Widget.

Can you help me?

Thanks!!!