IGraphBuilder interface
Applies to: desktop apps only
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.
Members
The IGraphBuilder interface inherits from IFilterGraph. IGraphBuilder also has these types of members:
Methods
The IGraphBuilder interface has these methods.
| Method | Description |
|---|---|
| Abort |
Requests that the graph builder return as soon as possible from its current task. |
| AddSourceFilter |
Adds a source filter to the filter graph for a specific file. |
| Connect |
Connects two pins. If they will not connect directly, this method connects them with intervening transforms. |
| Render |
Adds a chain of filters to a specified output pin to render it. |
| RenderFile |
Builds a filter graph that renders the specified file. |
| SetLogFile |
Sets the file for logging actions taken when attempting to perform an operation. |
| ShouldOperationContinue |
Queries whether the current operation should continue. |
Requirements
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Minimum supported client | Windows 2000 Professional |
|---|---|
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Minimum supported server | Windows 2000 Server |
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See also
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Build date: 3/6/2012
