IXpsDocumentConsumer::SendXpsUnknown method (filterpipeline.h)
The SendXpsUnknown
method sends an XPS document part that cannot be identified to the filter pipeline.
Syntax
HRESULT SendXpsUnknown(
[in] IUnknown *pUnknown
);
Parameters
[in] pUnknown
A pointer to an unrecognized document part interface.
Return value
SendXpsUnknown
returns an HRESULT value.
Remarks
If the IXpsDocumentProvider::GetXpsPart method returns an object that the filter cannot identify, the filter should forward the unrecognized object to the next filter in the filter pipeline by calling SendXpsUnknown
. Passing unrecognized objects to the next filter helps the filter maintain compatibility with future document formats.
Requirements
Requirement | Value |
---|---|
Target Platform | Desktop |
Header | filterpipeline.h |