A C++ interface for GTK+ The GTK+ Foundation Classes is an set of integrated C++ classes for developing GTK+ applications on UNIX-like systems such as Linux. GFC-UI is the user interface library and includes C++ wrappers for most objects in the ATK, GDK, GTK, GdkPixbuf and Pango libraries. There is a standard string compatible UTF-8 string class, automatic memory management, an optimized virtual signal handler system and a typesafe system of C++ signal and slots. It comes with a full set of example programs, several test applications, a GNU Autotools test project, a C++ version of the GTK+ widget demonstration program, extensive reference documentation and a tutorial.