The GetOriginUrl method retrieves the URL on the origin server from which the cached content was obtained.

HRESULT GetOriginUrl(
  BSTR*  pbstrOriginUrl



[out] Pointer to a BSTR containing the URL.

Return Value

If the method succeeds, the plug-in must return S_OK. To report an error, the plug-in can return any HRESULT other than S_OK. If the plug-in uses the IWMSEventLogIWMSEventLog Interface to log error information directly to the Windows Event Viewer, it is recommended that it return NS_E_PLUGIN_ERROR_REPORTED. Typically, the server attempts to make plug-in error information available to the server object model, the Windows Event Viewer, and the troubleshooting list in the details pane of the Windows Media Services MMC. However, if the plug-in uses the IWMSEventLog interface to send custom error information to the Windows Event Viewer, returning NS_E_PLUGIN_ERROR_REPORTED stops the server from also logging to the event viewer. For more information about retrieving plug-in error information, see Identifying Plug-in Errors.


CCacheEntry:GetOriginUrl( BSTR *pbstrOriginUrl )
    CComBSTR bstrUrl;

    // The URL for the content is contained in a local
    // variable. This example uses HTTP.
    bstrUrl = L"http://";
    bstrUrl.Append( m_pszOriginStream );
    *pbstrOriginUrl = bstrUrl.Detach();

    return( S_OK );


Header: streamcache.h.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003, Enterprise Edition; Windows Server 2003, Datacenter Edition; Windows Server 2008.

See Also


IWMSCacheItemDescriptor Interface