IOpcPartSet::PartExists method (msopc.h)

Article
10/13/2021

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