ICaptureGraphBuilder2::GetFiltergraph

A version of this page is also available for

Windows Embedded CE 6.0 R3

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 Interface pointer.

Return Value

Returns one of the following HRESULT values.

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 IGraphBuilder interface. 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

See Also

Reference

ICaptureGraphBuilder2 Interface
IGraphBuilder Interface
ICaptureGraphBuilder2::RenderStream
ICaptureGraphBuilder2::SetFiltergraph
ICaptureGraphBuilder2::SetOutputFileName