IWMSCacheProxyServer.CompareContentInformation (C#)

The CompareContentInformation method is called by the cache plug-in to determine whether content is up to date.

void IWMSCacheProxyServer.CompareContentInformation(
  string bstrOriginUrl,
  IWMSContext pContentInfo,
  IWMSContext pPresentationContext,
  IWMSCacheProxy pICacheProxy,
  IWMSProxyContext pIProxyContext,
  IWMSCacheProxyServerCallback pCallback,
  object varContext
);

Arguments

	[in] string containing the URL of the content on the origin server.
	[in] IWMSContextIWMSContext Object (C#) containing a Content Description Context.
	[in] IWMSContext object containing a Presentation Context.
	[in] IWMSCacheProxyIWMSCacheProxy Object (C#) containing the plug-in making the call.
	[in] IWMSProxyContextIWMSProxyContext Object (C#) that enables the server to retrieve client credentials and the name and port number of the proxy server that handles the client request.
	[in] IWMSCacheProxyServerCallbackIWMSCacheProxyServerCallback Object (C#) containing the callback function. The server calls IWMSCacheProxyServerCallback.OnCompareContentInformation to respond to the plug-in.
	[in] object containing a value defined by the plug-in. For example, your plug-in can use this parameter to persist state information. The server does not alter this value and passes it back when calling IWMSCacheProxyServerCallback.OnCompareContentInformation.

Return Value

This method does not return a value.

If this method fails, it throws an exception.

Number	Description
0x8007000E	The server could not allocate memory.

Requirements

Reference: Add a reference to Microsoft.WindowsMediaServices.

Namespace: Microsoft.WindowsMediaServices.Interop.

Assembly: Microsoft.WindowsMediaServices.dll.

Library: WMSServerTypeLib.dll.

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

See Also

Concepts

IWMSCacheProxyServer Object (C#)