IGraphVersion interface

The IGraphVersion interface is implemented on the Filter Graph Manager to provide a way for plug-in distributors and applications to know when the graph has changed. If the graph has changed, and the application or plug-in distributor has an interface on a particular filter or pin, it should requery the graph to see if its pointers are still valid, or if there are new ones it should use.

Members

The IGraphVersion interface inherits from the IUnknown interface. IGraphVersion also has these types of members:

Methods

The IGraphVersion interface has these methods.

MethodDescription
QueryVersion

Retrieves the current graph version number.

 

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Strmif.h (include Dshow.h)

Library

Strmiids.lib

 

 

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