This inheritance list is sorted roughly, but not completely, alphabetically:
[detail level 1234]
  VCard::Address | |
| AdhocCommandProvider | A virtual interface for an Ad-hoc Command Provider according to XEP-0050 |
| AdhocHandler | A virtual interface for an Ad-hoc Command users according to XEP-0050 |
| AnnotationsHandler | A virtual interface which can be reimplemented to receive notes with help of the Annotations object |
| AnnotationsListItem | |
| Base64 | An implementation of the Base64 data encoding (RFC 3548) |
| BookmarkHandler | A virtual interface which can be reimplemented to receive bookmarks with help of a BookmarkStorage object |
| BookmarkListItem | |
| CertInfo | |
| ChatStateHandler | A virtual interface that enables an object to be notified about a remote entity's Chat States (XEP-0085) |
 CompressionBase | This is an abstract base class for stream compression implementations |
| CompressionDataHandler | An abstract base class used to receive de/compressed data from a CompressionBase-derived object |
| ConferenceListItem | |
| ConnectionBase | An abstract base class for a connection |
| ConnectionDataHandler | This is an abstract base class to receive events from a ConnectionBase-derived object |
| ConnectionHandler | This is an abstract base class to receive incoming connection attempts. Do not confuse this with ConnectionListener, which is used with XMPP streams and has a completely different meaning |
| ConnectionListener | Derived classes can be registered as ConnectionListeners with the Client |
| DataFormBase | An abstract base class for a XEP-0004 Data Form |
| DataFormField | An abstraction of a single field in a XEP-0004 Data Form |
| DiscoHandler | A virtual interface that enables objects to receive Service Discovery (XEP-0030) events |
| DiscoNodeHandler | Derived classes can be registered as NodeHandlers for certain nodes with the Disco object |
| DiscoNodeItem | |
| DNS | This class holds a number of static functions used for DNS related stuff |
| VCard::Email | |
| FlexibleOfflineHandler | Implementation of this virtual interface allows for retrieval of offline messages following XEP-0030 |
| VCard::Geo | |
| InBandBytestreamDataHandler | A virtual interface that allows implementors to receive data sent over a In-Band Bytestream as defined in XEP-0047 |
| InBandBytestreamHandler | A virtual interface that allows to receive new incoming In-Band Bytestream requests from remote entities |
| IqHandler | A virtual interface which can be reimplemented to receive IQ stanzas |
| JID | An abstraction of a JID |
| VCard::Label | |
| LastActivityHandler | This is an virtual interface that, once reimplemented, allows to receive the results of Last-Activity-queries to other entities |
| LogHandler | A virtual interface which can be reimplemented to receive debug and log messages |
| LogSink | An implementation of log sink and source |
| MD5 | An MD% implementation |
| MessageEventHandler | A virtual interface that enables an object to be notified about Message Events (XEP-0022) |
| MessageFilter | Virtual base class for message filters |
| MessageHandler | A virtual interface which can be reimplemented to receive incoming message stanzas |
| MessageSession | An abstraction of a message session between any two entities |
| MessageSessionHandler | A virtual interface which can be reimplemented to receive incoming message sessions |
| MUCInvitationHandler | |
| MUCListItem | |
| MUCRoomConfigHandler | |
| MUCRoomHandler | This interface enables inheriting classes to be notified about certain events in a MUC room |
| MUCRoomParticipant | |
| Mutex | A simple implementation of mutex as a wrapper around a pthread mutex or a win32 critical section |
| MutexGuard | A simple implementation of a mutex guard |
| VCard::Name | |
| VCard::Org | |
| Parser | This class implements an XML parser |
| VCard::Photo | |
| PresenceHandler | A virtual interface which can be reimplemented to receive presence stanzas |
| PrivacyItem | This is an abstraction of a single item of a privacy list, describing an allowed or forbidden action |
| PrivacyListHandler | A virtual interface that allows to retrieve Privacy Lists |
| PrivateXMLHandler | A virtual interface which can be reimplemented to store and receive private XML data |
| RegistrationFields | |
| RegistrationHandler | A virtual interface that receives events from an Registration object |
| Resource | Holds resource attributes |
| RosterItem | An abstraction of a roster item |
| RosterListener | A virtual interface which can be reimplemented to receive roster updates |
| SearchFieldStruct | |
| SearchHandler | A virtual interface that enables objects to receive Jabber Search (XEP-0055) results |
| SHA | An implementation of SHA1 |
| SIHandler | An abstract base class to handle results of outgoing SI requests, i.e. you requested a stream (using SIManager::requestSI()) to send a file to a remote entity |
| SIProfileFTHandler | An abstract base class to handle file transfer (FT) requests |
| SIProfileHandler | An abstract base class to handle SI requests for a specific profile, e.g. file transfer |
| SOCKS5BytestreamDataHandler | A virtual interface that allows implementors to receive data sent over a SOCKS5 Bytestream as defined in XEP-0066. You'll also need it for sending of data |
| SOCKS5BytestreamHandler | A virtual interface that allows to receive new incoming SOCKS5 Bytestream requests from remote entities |
| StanzaExtension | This class abstracts a stanza extension, which is usually (but not necessarily) an 'x' element in a specific namespace |
| StanzaExtensionFactory | A Factory that creates StanzaExtensions from Tags |
| StatisticsHandler | A virtual interface which can be reimplemented to receive connection statistics |
| StatisticsStruct | |
| StreamHost | |
| SubscriptionHandler | A virtual interface which can be reimplemented to receive incoming subscription stanzas |
| Tag | This is an abstraction of an XML element |
| TagHandler | A virtual interface which can be reimplemented to receive non-XMPP Core stanzas |
| VCard::Telephone | |
| TLSBase | An abstract base class for TLS implementations |
| TLSHandler | An interface that allows for interacting with TLS implementations derived from TLSBase |
| VCard | A VCard abstraction |
 VCardHandler | A virtual interface that helps requesting Jabber VCards |
