See Also
 Important: |
|---|
| This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
A version of this page is also available for
4/8/2010
This method retrieves the filter graph that the capture graph builder is using.
Syntax
HRESULT GetFiltergraph( IGraphBuilder** ppfg ); |
Parameters
- ppfg
-
[out] Address of a variable that receives an IGraphBuilder Interfacepointer.
Return Value
Returns one of the following HRESULTvalues.
| Return Code | Description |
|---|---|
|
S_OK |
Success. |
|
E_POINTER |
NULL pointer argument. |
|
E_UNEXPECTED |
No filter graph. |
Remarks
Initially, the capture graph builder does not hold a pointer to a filter graph. This method returns E_UNEXPECTED until one of the following methods has been called:
-
ICaptureGraphBuilder2::RenderStream
-
ICaptureGraphBuilder2::SetFiltergraph
-
ICaptureGraphBuilder2::SetOutputFileName
This method increments the reference count on the IGraphBuilderinterface. Be sure to release the interface when you are done with it.
Requirements
| Windows Embedded CE | Windows Embedded CE 6.0 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for 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
|