[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'System' (#rtl)

# Reference for unit 'System': Classes

`IDispatch` |  | Dispatch interface
`IEnumerable` |  | Interface to retrieve an enumerator from a class.
`IEnumerator` |  | Enumerator support interface
`IInvokable` |  | Interface with RTTI associated with it.
`IUnknown` |  | Basic interface for all COM-based interfaces
`TAggregatedObject` |  | Aggregated object
`TContainedObject` |  | Base class for contained objects
`TInterfacedObject` |  | TObject descendent implementing the IUnknown interface
`TObject` |  | Base class of all classes.

Documentation generated on: Feb 26 2014