This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 1234]

CBatchElementError	Structure representing per-element batch operation errors
CManager::BatchElementErrorPolicyTag	Tag dispatching structure intended for use selecting appropriate overloads for various error-handling modes
CContext	The Context object is used to convey information about the calling environment to a manager
CCppPluginSystem	Generic plugin system for C++ plugins
▼CCppPluginSystemPlugin	The base class that defines a plugin of the C++ plugin system
CCppPluginSystemManagerPlugin	Base class to be subclassed by plugins binding a host to an Asset Management System
CEntityReference	EntityReference forms a strongly typed wrapper around arbitrary strings to ensure they have been validated by the target manager before being used as an Entity Reference in the various entity related API calls
CEntityReferencePager	The EntityReferencePager allows for the retrieval and traversal of large datasets in a paginated manner
CEntityReferencePagerInterface	Deals with the retrieval of paginated data from the backend at the behest of the host
CManager::BatchElementErrorPolicyTag::Exception	Exception policy overloads, when used in a batch context, will emit an exception at the first encountered errors::BatchElementError provided by the ManagerInterface
CFileUrlPathConverter	Utility class for converting between file system paths and file URLs
Chash< openassetio::EntityReference >
CHost	The Host object represents the tool or application that created a session with OpenAssetIO, and wants to query or store information within a manager
CHostInterface	The HostInterface provides an abstraction of the 'caller of the API'
CHostSession	The HostSession is a manager-facing class that represents a discrete API session started by a host in order to communicate with a manager
▼Clist
CTest_getWithRelationship_All.weaklist	Built-in `list` type does not support weakref, so create this shim
▼CLoggerInterface	An abstract base class that defines the receiving interface for log messages generated a manager or the API middleware
CConsoleLogger	A logger that sends messages to the console (stderr)
CSeverityFilter	The SeverityFilter is a wrapper for a logger that drops messages below a requested severity
CManager	The Manager is the Host facing representation of an Asset Management System
CManagerFactory::ManagerDetail	Simple struct containing the default configuration details of a potential manager implementation
CManagerFactory	The ManagerFactory is the primary mechanism for querying for available managers and constructing a Manager
▼CManagerImplementationFactoryInterface	Manager Factories are responsible for instantiating classes that derive from openassetio::v1::managerApi::ManagerInterface for use within a host
CCppPluginSystemManagerImplementationFactory	A factory to manage CppPluginSystemManagerPlugin derived plugins
CHybridPluginSystemManagerImplementationFactory	The hybrid plugin system composes one or more child plugin systems, and abstracts away routing API calls based on priority and capability
CManagerInterface	This Interface binds a Asset Management System into OpenAssetIO
CManagerStateBase	An abstract base for all Manager State objects
CMapper	String substitution methods and lookups to determine the correct terminology for the supplied manager
▼Cobject
CPythonPluginSystem	Loads Python Packages, using entry point discovery or from a custom search path
CPythonPluginSystemPlugin	The base class that defines a plugin of the plugin system
▼Cruntime_error
▼COpenAssetIOException	Exception base for all OpenAssetIO exceptions
CBatchElementException	Exception thrown when a BatchElementError is converted
▼CInputValidationException	Thrown whenever the input to a public API function is invalid for the requested operation
CConfigurationException	A special case of InputValidationException for cases where the input comes from external config, rather than function arguments
CNotImplementedException	Thrown whenever a procedure must abort due to not being implemented
CUnhandledException	Exceptions emitted from manager plugins that are not handled will be converted to this type and re-thrown when the exception passes through the OpenAssetIO middleware
▼CTestCase
CFixtureAugmentedTestCase	Base test case class that all test classes must inherit from
CTraitsData	A transport-level container for data exchange between a host and a manager
CManager::BatchElementErrorPolicyTag::Variant	Variant policy overloads, when used in a batch context, will be exhaustive for all elements in the batch, a variant result containing either a trait::TraitsData or errors::BatchElementError will be provided for each EntityReference provided as an argument to the operation
▼CFixtureAugmentedTestCase
CTest_createChildState	Tests that the createChildState method is implemented if createState has been implemented to return a custom state object
CTest_displayName	Check plugin's implementation of managerApi.ManagerInterface.displayName
CTest_entityExists	Check plugin's implementation of managerApi.ManagerInterface.entityExists
CTest_entityTraits	Check plugin's implementation of managerApi.ManagerInterface.entityTraits
CTest_getWithRelationship_All	Check plugin's implementation of managerApi.ManagerInterface.getWithRelationship[s]
CTest_identifier	Check plugin's implementation of managerApi.ManagerInterface.identifier
CTest_info	Check plugin's implementation of managerApi.ManagerInterface.info
CTest_initialize	Check plugin's implementation of managerApi.ManagerInterface.initialize
CTest_isEntityReferenceString	Check plugin's implementation of managerApi.ManagerInterface.isEntityReferenceString
CTest_managementPolicy	Check plugin's implementation of managerApi.ManagerInterface.managementPolicy
CTest_persistenceTokenForState	Tests that the persistenceTokenForState method is implemented if createState has been implemented to return a custom state object
CTest_preflight	Check a plugin's implementation of managerApi.ManagerInterface.preflight
CTest_register	Check a plugin's implementation of managerApi.ManagerInterface.register
CTest_resolve	Check plugin's implementation of managerApi.ManagerInterface.resolve
CTest_settings	Check plugin's implementation of managerApi.ManagerInterface.settings
CTest_stateFromPersistenceToken	Tests that the persistenceTokenForState method is implemented if createState has been implemented to return a custom state object
CTest_updateTerminology	Check plugin's implementation of managerApi.ManagerInterface.updateTerminology
▼CManagerImplementationFactoryInterface
CPythonPluginSystemManagerImplementationFactory	A Factory to manage openassetio.pluginSystem.PythonPluginSystemManagerPlugin derived plugins
▼CPythonPluginSystemPlugin
CPythonPluginSystemManagerPlugin	This class represents the various derived classes that make up the binding to a Asset Management System