Here is a list of all modules:

[detail level 12]

Base64 routines	Base64 encoding/decoding routines
Character Set Conversion	Utility functions for converting strings between different character sets
D-Bus API	API to use D-Bus services as a client or to implement a D-Bus service
File Utilities	Various file-related classes and functions
Generic Values	Glib::Value<> is specialized for almost any type used within the glibmm and gtkmm libraries
Generic container converters
Helper classes
Glob-style Pattern Matching	Match strings against patterns containing '*' (wildcard) and '?' (joker)
Miscellaneous Utility Functions	Miscellaneous Utility Functions – a selection of portable utility functions
Platform-specific content typing	A content type is a platform specific string that defines the type of a file
Portable Network I/O Functionality
Random Numbers	Pseudo random number generator
Shell-related Utilities	Shell-like command line handling
Simple XML Subset Parser	The Glib::Markup parser is intended to parse a simple markup format that's a subset of XML
Spawning Processes	Process launching with fork()/exec()
Stream Classes
String Utility Functions	This section describes a number of utility functions for creating and manipulating strings, as well as other string-related stuff
The Main Event Loop	Manages all available sources of events
Thread Pools	Pools of threads to execute work concurrently
Threads	Thread abstraction; including threads, different mutexes, conditions and thread private data
URI Utilities	Various uri-related functions
Unicode Manipulation	Functions operating on Unicode characters and UTF-8 strings
Variant Data Types	The Variant classes deal with strongly typed variant data
giomm Enums and Flags
glibmm Enums and Flags