From README This module provides perl access to Glib and GLib's GObject libraries. GLib is a portability and utility library; GObject provides a generic type system with inheritance and a powerful signal system. Together these libraries are used as the foundation for many of the libraries that make up the Gnome environment, and are used in many unrelated projects. This wrapper attempts to provide a perlish interface while remaining as true as possible to the underlying C API, so that any reference materials you can find on using GLib may still apply to using the libraries from perl. Where GLib's functionality overlaps perl's, perl's is favored; for example, you will find perl lists and arrays in place of GSList or GList objects. Some concepts have been eliminated; you need never worry about reference-counting on GObjects or GBoxed structures. Other concepts have been converted to a perlish analogy; the GType id will never be seen in perl, as the package name serves that purpose. [FIXME link to a document describing this stuff in detail.] WWW: http://gtk2-perl.sourceforge.net/