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The CMediaEventclass provides base class implementation of the IDispatchmethods of the dual-interface IMediaEvent. It leaves as pure virtual the properties and methods of the IMediaEventinterface.
The CMediaEventclass also provides base class implementation of the IMediaEventExinterface which derives from IMediaEvent.
The CMediaEvent::GetIDsOfNames, CMediaEvent::GetTypeInfo, CMediaEvent::GetTypeInfoCount, and CMediaEvent::Invokemember functions are standard implementations of the IDispatchinterface using the CBaseDispatchclass (and a type library) to parse the commands and pass them to the pure virtual methods of the IMediaEventinterface.
Member Functions
| CMediaEvent | Constructs a CMediaEventobject. |
Implemented INonDelegatingUnknown Methods
| NonDelegatingQueryInterface | Returns a specified reference-counted interface. |
Implemented IDispatch Methods
| GetIDsOfNames | Maps a single member and an optional set of parameters to a corresponding set of integer dispatch identifiers, which can be used during subsequent calls to the IDispatch::Invokemethod. |
| GetTypeInfo | Retrieves a type-information object, which retrieves the type information for an interface. |
| GetTypeInfoCount | Retrieves the number of type-information interfaces provided by an object. |
| Invoke | Provides access to properties and methods exposed by an object. |