IOpcRelationship::GetSourceUri method

Gets the URI of the relationship source.

Syntax

HRESULT GetSourceUri(
  [out, retval] IOpcUri **sourceUri
);

Parameters

sourceUri [out, retval]

A pointer to the IOpcUri interface of the OPC URI object that represents the URI of the relationship source.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Remarks

If the source of a relationship is the package itself, the URI in sourceUri represents the package root: "/".

If the relationship  target is a part, form the part name by calling the IOpcUri::CombinePartUri method from the IOpcUri interface pointer received in sourceUri. Use the relative URI received in the targetUri parameter of the GetTargetUri method as the input parameter of the IOpcUri::CombinePartUri call. For an example, see Resolving a Part Name from a Target URI.

For more information about relationships, see the Open Packaging Conventions Fundamentals and the ECMA-376 OpenXML, 1st Edition, Part 2: Open Packaging Conventions (OPC).

Thread Safety

Packaging objects are not thread-safe.

For more information, see the Getting Started with the Packaging API.

Requirements

See also

IOpcRelationship

Overviews

Resolving a Part Name from a Target URI

Getting Started with the Packaging API

Open Packaging Conventions Fundamentals

Relationships Overview

Reference

Packaging API Reference

Packaging API Samples

External Resources

ECMA-376 OpenXML