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4/8/2010
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This class is a base class that handles the IDispatch methods of the dual-interface IMediaPosition. It leaves the properties and methods as pure virtual.
The CMediaPosition::GetIDsOfNames, CMediaPosition::GetTypeInfo, CMediaPosition::GetTypeInfoCount, and CMediaPosition::Invoke methods are standard implementations of the IDispatch interface using the CBaseDispatch class (and a type library) to parse the commands and pass them to the pure virtual IMediaPosition methods.
Member Functions
| Member function | Description |
|---|---|
Constructs a CMediaPosition object. |
Implemented INonDelegatingUnknown Methods
| Method | Description |
|---|---|
Returns a specified reference-counted interface. |
Implemented IDispatch Methods
| Method | Description |
|---|---|
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::Invoke member function. |
|
Retrieves a type-information object, which can retrieve the type information for an interface. |
|
Retrieves the number of type-information interfaces provided by an object. |
|
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 |