IGraphBuilder interface (strmif.h)

This interface provides methods that enable an application to build a filter graph. The Filter Graph Manager implements this interface.

The IGraphBuilder interface inherits from the IFilterGraph interface. IFilterGraph provides basic operations, such as adding a filter to the graph or connecting two pins. IGraphBuilder adds further methods that construct graphs from partial information. For example, the IGraphBuilder::RenderFile method builds a graph for file playback, given the name of the file. The IGraphBuilder::Render method renders data from an output pin by connecting new filters to the pin.

Using these methods, an application does not need to specify every filter and pin connection in the graph. Instead, the Filter Graph Manager selects filters that are registered on the user's system, adds them to the graph, and connects them. For more information, see Intelligent Connect.


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


The IGraphBuilder interface has these methods.


The Abort method requests the Filter Graph Manager to halt its current task as quickly as possible.

The AddSourceFilter method adds a source filter for a specified file to the filter graph.

The Connect method connects the two pins, using intermediates if necessary.

The Render method builds a filter graph that renders the data from a specified output pin.

The RenderFile method builds a filter graph that renders the specified file. (IGraphBuilder.RenderFile)

The SetLogFile method sets the file for logging actions taken when attempting to perform an operation.

The ShouldOperationContinue method queries whether the current operation should continue.


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)

See also