The SLgtk package binds the GIMP Toolkit, also known as Gtk, to the S-Lang scripting language. It was created with the SLIRP code generator, and provides an importable module which makes most of Gtk and its constituent libraries callable directly from S-Lang scripts. . With SLgtk the S-Lang programmer now has access to a powerful, cross-platform widget set for creating sophisticated graphical user interfaces (GUIs).