IOpcSignatureReferenceEnumerator::MovePrevious method (msopc.h)

Moves the current position of the enumerator to the previous IOpcSignatureReference interface pointer.

Syntax

HRESULT MovePrevious(
  [out, retval] BOOL *hasPrevious
);

[out, retval] hasPrevious

A Boolean value that indicates the status of the IOpcSignatureReference interface pointer at the current position.

The value of hasPrevious is only valid when the method succeeds.

Value	Meaning
TRUE	The current position of the enumerator has been moved to the previous pointer in the collection, and that pointer is valid.
FALSE	The current position of the enumerator has been moved past the beginning of the collection and is no longer valid.

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

Return code/value	Description
S_OK	The method succeeded.
E_POINTER	The hasPrevious parameter is NULL.
OPC_E_ENUM_COLLECTION_CHANGED 0x80510050	The enumerator is invalid because the underlying set has changed.
OPC_E_ENUM_CANNOT_MOVE_PREVIOUS 0x80510052	The current position already precedes the first item of the enumerator.

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