Dialogs in GTKmm

["Zdravko Monov" <zdravko monov gmail com>]

Hi there,
can you tell me what will be the most suitable way to create an input
dialog in GTKmm? Can I use Gtk::Window, or should I use better
Gtk::Dialog? What is the difference? I would like to have control of
the dialog - that is what button was pressed (OK or Cancel) in order to
handle the program logic correctly.
Thanks in advance