libibus

libibus is a C library that provides a client API for the IBus input method framework. It enables applications to communicate with the IBus daemon to manage input methods, switch engines, and access information about the current input context, including preedit text, candidate lists, and the active input method.

The library uses D-Bus for inter-process communication and exposes a set of objects and signals that allow applications to monitor and control input method behavior. Developers link against libibus to create an IBusBus object, request input method changes, and query or set properties related to the active input context.

libibus is part of the IBus project and is commonly used by GNOME and GTK-based applications, as well as other desktop environments that implement multilingual input. It supports integration with various input method engines and serves as the client-side interface to the IBus daemon.

License and maintenance: libibus is released under the GNU Lesser General Public License (LGPL) and is maintained as part of the IBus ecosystem.