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This class is a base class that handles the IDispatchmethods of the dual-interface IMediaPosition. It leaves the properties and methods as pure virtual.
The CMediaPosition::GetIDsOfNames, CMediaPosition::GetTypeInfo, CMediaPosition::GetTypeInfoCount, and CMediaPosition::Invokemethods are standard implementations of the IDispatchinterface using the CBaseDispatchclass (and a type library) to parse the commands and pass them to the pure virtual IMediaPositionmethods.
Member Functions
Member function | Description |
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Constructs a CMediaPositionobject. |
Implemented INonDelegatingUnknown Methods
Method | Description |
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Returns a specified reference-counted interface. |
Implemented IDispatch Methods
Method | Description |
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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 CMediaPosition::Invokemember function. |
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Retrieves a type-information object, which can retrieve the type information for an interface. |
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Retrieves the number of type-information interfaces provided by an object. |
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Provides access to properties and methods exposed by an object. |
Requirements
Windows Embedded CE | Windows CE 2.12 and later |
Windows Mobile | Windows Mobile Version 5.0 and later |
Note | Microsoft DirectShow applications and DirectShow filters have
different include file and Library requirements
For more information, see Setting Up the Build Environment |