IOpcPartSet::PartExists method (msopc.h)

Gets a value that indicates whether a specified part is represented as a part object in the set.

Syntax

HRESULT PartExists(
  [in]          IOpcPartUri *name,
  [out, retval] BOOL        *partExists
);

Parameters

[in] name

A pointer to an IOpcPartUri that represents the part name of the part.

[out, retval] partExists

One of the following values:

Value Meaning
TRUE
A part that has the specified part name is represented in the set.
FALSE
A part that has the specified part name is not represented in the set.

Return value

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

Return code Description
S_OK
The method succeeded.
E_POINTER
The partExists parameter is NULL.
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.

Remarks

To retrieve the IOpcPart interface pointer of the part object that represents a specific part, call the PartExists method and pass in the part name to confirm that the part is represented in the set. If it is, call the GetPart method and pass in the part name to retrieve the IOpcPart interface pointer.

If the represented part name is the name of a Relationships part, partExists is receives FALSE because Relationships parts are not included in the set.

If a part is represented in the set, the part exists in the package being read or the package to be written.

Thread Safety

Packaging objects are not thread-safe.

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

Requirements

Requirement Value
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

Getting Started with the Packaging API

IOpcPartSet

Overviews

Packaging API Reference

Packaging API Samples

Packaging Errors

Parts Overview

Reference