IWMSCacheItem Interface
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IWMSCacheItem Interface
You can use the IWMSCacheItem interface to retrieve information about cached content.
In addition to the methods inherited from IDispatch, the IWMSCacheItem interface exposes the following methods.
Method | Description |
get_ContentSize | Retrieves the size of the content in bytes. |
get_OriginUrl | Retrieves the relative URL for the cached content. |
Example Code
The following example illustrates how to retrieve a pointer to an IWMSCacheItem 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; IWMSCacheItem *pCacheItem; 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 // containing 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, // and retrieve the count of cache items. hr = pCacheProxyPlugin->get_CacheItems(&pCacheItems); if (FAILED(hr)) goto EXIT; hr = pCacheItems->get_Count(&lCount); if (FAILED(hr)) goto EXIT; // Retrieve information on each cache item. for (long x = 0; x < lCount; x++) { varIndex = x; hr = pCacheItems->get_Item(varIndex, &pCacheItem); if (FAILED(hr)) goto EXIT; // Release temporary COM objects. pCacheItem->Release(); } EXIT: // TODO: Release temporary COM objects and uninitialize COM.
See Also
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