42.

Object
   +--- Widget
         +--- Container
               +--- Bin
                     +--- Window
                           +--- FontSelectionDialog
         

, FontSelection .

:

$font_dialog = new Gtk::FontSelectionDialog( $title );

:

$font_dialog->get_font();

, :

$font_dialog->get_font_name();

:

font_dialog->set_font_name( $font_name );