GtkSourceMap — Widget that displays a map for a specific GtkSourceView
GtkSourceRegion — Region utility
GtkSourceSpaceDrawer — Represent white space characters with symbols
GtkSourceTag — A tag that can be applied to text in a GtkSourceBuffer
GtkSourceUndoManager — Undo manager interface for GtkSourceView
GtkSourceUtils — Utility functions
Version Information — Macros and functions to check the GtkSourceView version