About Dialog : Close button to close dialog?

[harryhaaren gmail com]

Hey all,

I've created an "About" dialog using Glade, getting that widget from a ui.glade file using
refBuilder->get_widget("aboutDialog", aboutDialog);
A simple "aboutDialog->show();" shows the dialog, but when I click the close button it doesn't do anything.

So I looked into getting the button using get_widget(), but its in a ButtonBox, so I don't have access...
Looked in the programming book, but I'm still a bit confused.. 
-Harry