GObject is a part of GLib library that implements the type system. The CL-GTK2-GObject is a Common Lisp binding for relevant parts of GObject.
The purpose of CL-GTK2-GObject is to ease the creation of binding for libraries based on GObject.
Please bear in mind that this is the documentation for a work-in-progress library and is a snapshot of current situation. API and functionality may (and will) change. Largely unfinished parts are working with GBoxed types, subclassing GObjects and implementing GInterfaces.
CL-GTK2-GObject is logically split into several layers:
libgthread. This code includes basic wrapper around GType designator (it is used everywhere and should be defined first) and definitions of foreign structures and imports foreign functions.
Naturally, users of CL-GTK2-GObject should use the high-level GObject integration, but occasionaly it may be necessary to use lower-level functionality.