Edit

MediaCollectionAttributeStringChanged Event of the AxWindowsMediaPlayer Object

  • Article

[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 It has been superseded by MediaPlayer.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 MediaCollectionAttributeStringChanged event occurs when an attribute value in the library is changed.

[C#]
private void player_MediaCollectionAttributeStringChanged(
  object sender,
  _WMPOCXEvents_MediaCollectionAttributeStringChangedEvent e
)

[Visual Basic]
Private Sub player_MediaCollectionAttributeStringChanged(
  sender As Object,
  e As _WMPOCXEvents_MediaCollectionAttributeStringChangedEvent
) Handles player.MediaCollectionAttributeStringChanged

Event Data

The handler associated with this event is of type AxWMPLib._WMPOCXEvents_MediaCollectionAttributeStringChangedEventHandler. This handler receives an argument of type AxWMPLib._WMPOCXEvents_MediaCollectionAttributeStringChangedEvent, which contains the following properties related to this event.

Property Description
bstrAttribName System.StringSpecifies the name of the attribute. For information about the attributes supported by Windows Media Player, see the Attribute Reference.
bstrOldAttribVal System.StringSpecifies the old value of the attribute.
bstrNewAttribVal System.StringSpecifies the new value of the attribute.

Remarks

When a user modifies library metadata, the media collection is updated and this event fires for each attribute changed.

Requirements

Requirement Value
Version
 Windows Media Player 9 Series or later
Namespace
 AxWMPLib
Assembly
AxInterop.WMPLib.dll (AxInterop.WMPLib.dll.dll)

See also

AxWindowsMediaPlayer Object (VB and C#)

AxWindowsMediaPlayer.mediaCollection (VB and C#)

IWMPMediaCollection Interface (VB and C#)