IFilterGraph interface (strmif.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The IFilterGraph interface provides methods for building a filter graph. An application can use it to add filters to the graph, connect or disconnect filters, remove filters, and perform other basic operations. However, the IGraphBuilder interface inherits from this interface and provides additional methods that are more sophisticated. Therefore, applications should use IGraphBuilder rather than using IFilterGraph directly.

The filter graph manager implements this interface.

Inheritance

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

Methods

The IFilterGraph interface has these methods.

IFilterGraph::AddFilter The AddFilter method adds a filter to the graph.
IFilterGraph::ConnectDirect The ConnectDirect method connects the two pins directly (without intervening filters).
IFilterGraph::Disconnect The Disconnect method disconnects this pin.
IFilterGraph::EnumFilters The EnumFilters method provides an enumerator for all filters in the graph.
IFilterGraph::FindFilterByName The FindFilterByName method finds a filter that was added to the filter graph with a specific name.
IFilterGraph::Reconnect The Reconnect method disconnects a pin and then reconnects it to the same pin.
IFilterGraph::RemoveFilter The RemoveFilter method removes a filter from the graph.
IFilterGraph::SetDefaultSyncSource The SetDefaultSyncSource method sets the reference clock to the default clock.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)