gtkmm: New API in gtkmm 4.2

gtkmm 4.6.0

New API in gtkmm 4.2

Member Gdk::Device::get_timestamp () const
Member Gdk::PopupLayout::get_shadow_width (int& left, int& right, int& top, int& bottom) const
Member Gdk::PopupLayout::set_shadow_width (int left, int right, int top, int bottom)
Member Gdk::PopupLayout::set_shadow_width (int width)
Member Gtk::IconTheme::has_gicon (const Glib::RefPtr< const Gio::Icon >& gicon) const
Class Gtk::SelectionListModelImpl
Member Gtk::ShortcutController::get_scope () const
Member Gtk::Window::get_handle_menubar_accel () const
Member Gtk::Window::property_handle_menubar_accel ()
Member Gtk::Window::property_handle_menubar_accel () const
Member Gtk::Window::set_handle_menubar_accel (bool handle_menubar_accel)