Signal emitted when Gtk::ColourSelectionDialog's close button is clicked

[weijie <weijie90 gmail com>]

Hi,
What is the signal emitted when a Gtk::ColourSelectionDialog's close
button is clicked? i am using libglademm.

For example, if i want to connect a signal handler to a button's
signal_clicked() event, i use this:

"exitbtn->signal_clicked().connect( sigc::ptr_fun(on_exitbtn_clicked) );"

So which signal should i use for a colour selection dialog? the docs are
not helpful here.

can anyone please point me to a site containing all the signals emitted,
espically in the context of libglademm? thanks!

wei jie