gtkmm: New API in gtkmm 3.2
- Class Gtk::FontChooser
- Class Gtk::FontChooserDialog
- Class Gtk::FontChooserWidget
- Member Gtk::Scale::Scale (Orientation orientation)
- Member Gtk::Tooltip::unset_custom ()
- Member Gtk::Tooltip::unset_icon ()
- Member Gtk::Tooltip::unset_markup ()
- Member Gtk::Tooltip::unset_text ()
- Member Gtk::TreeView::unset_drag_dest_row ()
- Member Gtk::TreeView::unset_row_separator_func ()