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IPortableDeviceValuesCollection::GetAt method

The GetAt method retrieves an item from the collection by a zero-based index.

Syntax


HRESULT GetAt(
  [in]  const DWORD                 dwIndex,
  [out]       IPortableDeviceValues **ppValues
);

Parameters

dwIndex [in]

DWORD that specifies a zero-based index in the collection.

ppValues [out]

Address of a variable that receives a pointer to an IPortableDeviceValues interface from the collection. The caller is responsible for calling Release on this interface when done with it.

Return value

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

Return codeDescription
S_OK

The method succeeded.

E_INVALIDARG

The zero-based index that was passed in was out of range.

E_POINTER

A required pointer argument was NULL.

E_UNEXPECTED

The collection contains a NULL IPortableDeviceValues pointer.

 

Remarks

Any changes that are made to values in the retrieved interface will be made to the version stored in the collection.

Requirements

Header

PortableDeviceTypes.h

Library

PortableDeviceGUIDs.lib

See also

IPortableDeviceValuesCollection Interface

 

 

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