IWMPMediaCollection::getAttributeStringCollection method (wmp.h)

Article
4/26/2023

[The feature associated with this page, Windows Media Player SDK, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of Windows Media Player SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The getAttributeStringCollection method retrieves a pointer to an IWMPStringCollection interface. This interface represents the set of all values for a given attribute within a given media type.

Syntax

HRESULT getAttributeStringCollection(
  [in]  BSTR                 bstrAttribute,
  [in]  BSTR                 bstrMediaType,
  [out] IWMPStringCollection **ppStringCollection
);

Parameters

[in] bstrAttribute

String containing the attribute for which the values are retrieved.

[in] bstrMediaType

String containing the media type for which the values are retrieved.

[out] ppStringCollection

Pointer to a pointer to an IWMPStringCollection interface for the retrieved values.

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.

Remarks

Before calling this method, you must have read access to the library. For more information, see Library Access.

For information about the attributes supported by Windows Media Player, see the Attribute Reference section.

Requirements

Requirement	Value
Minimum supported client	Windows Media Player 9 Series or later.
Target Platform	Windows
Header	wmp.h
DLL	Wmp.dll

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