IOpcPart::GetContentStream method (msopc.h)

Gets a stream that provides read/write access to part content.


HRESULT GetContentStream(
  [out, retval] IStream **stream


[out, retval] stream

A pointer to the IStream interface of a stream that provides read and write access to part content.

Return value

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

Return code Description
The method succeeded.
The stream parameter is NULL.
CreateFile function error
An HRESULT error code from the CreateFile function, which is returned as a result of attempting to allocate disk space for part data if the package was opened using the OPC_CACHE_ON_ACCESS read flag.
Package Consumption error
An HRESULT error code from the Package Consumption Error Group.
Part URI error
An HRESULT error code from the Part URI Error Group.


For more information about parts, 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.


Minimum supported client Windows 7 [desktop apps only]
Minimum supported server Windows Server 2008 R2 [desktop apps only]
Target Platform Windows
Header msopc.h

See also

ECMA-376 OpenXML standard

External Resources

Getting Started with the Packaging API



Open Packaging Conventions Fundamentals


Packaging API Reference

Packaging API Samples

Packaging Errors

Parts Overview