openSUSE:Leap:15.2 openSUSE Leap 15.2 openSUSE Leap borrows packages from SLE for the base system. Please refer to https://osrt.opensuse.org/web/origin-manager/#openSUSE:Leap:15.2 for origin information https://download.opensuse.org/distribution/leap/15.2/repo/oss/ gtkmm3-tutorial C++ Bindings for GTK+ -- Tutorial Gtkmm provides a C++ interface to the GTK+ GUI library. gtkmm wraps GTK+. Highlights include typesafe callbacks, widgets extensible via inheritance, and a comprehensive set of widget classes that can be freely combined to quickly create complex user interfaces.