IWMSCacheItems Interface
The IWMSCacheItems interface contains a collection of IWMSCacheItem interfaces that can be used to retrieve information about cached content.
In addition to the methods inherited from IDispatch, the IWMSCacheItems interface exposes the following methods.
Method |
Description |
|---|---|
Delete |
Removes an IWMSCacheItemIWMSCacheItem Interface from the IWMSCacheItems collection. |
DeleteAll |
Removes all IWMSCacheItem interfaces from the IWMSCacheItems collection. |
get_Count |
Retrieves the number of IWMSCacheItem interfaces that are contained in the IWMSCacheItems collection. |
get_Item |
Retrieves an IWMSCacheItem interface from the IWMSCacheItems collection. |
get_length |
Retrieves the number of IWMSCacheItem interfaces that are contained in the IWMSCacheItems collection. This method is provided for JScript compatibility. |
Example
The following example illustrates how to retrieve a pointer to an IWMSCacheItems interface.
#include <windows.h>
#include <atlbase.h> // Includes CComVariant.
#include "wmsserver.h"
// Declare variables and interfaces.
IWMSServer *pServer;
IWMSPlugins *pPlugins;
IWMSPlugin *pPlugin;
IWMSCacheProxyPlugin *pCacheProxyPlugin;
IWMSCacheItems *pCacheItems;
HRESULT hr;
CComVariant varIndex;
long lCount;
// Initialize the COM library and retrieve a pointer
// to an IWMSServer interface.
hr = CoInitialize(NULL);
hr = CoCreateInstance(CLSID_WMSServer,
NULL,
CLSCTX_ALL,
IID_IWMSServer,
(void **)&pServer);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to an IWMSPlugins interface
// that contains cache proxy plug-ins.
hr = pServer->get_CacheProxy(&pPlugins);
if (FAILED(hr)) goto EXIT;
hr = pPlugins->get_Count(&lCount);
if (FAILED(hr)) goto EXIT;
// Retrieve the IWMSPlugin interface for the
// first cache proxy plug-in.
varIndex = 0;
hr = pPlugins->get_Item(varIndex, &pPlugin);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to the IWMSCacheProxyPlugin interface.
hr = pPlugin->QueryInterface(IID_IWMSCacheProxyPlugin,
(void **)&pCacheProxyPlugin);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to the IWMSCacheItems interface.
hr = pCacheProxyPlugin->get_CacheItems(&pCacheItems);
if (FAILED(hr)) goto EXIT;
EXIT:
// TODO: Release temporary COM objects and uninitialize COM.