IWMSCacheProxyPlugin::get_CacheItems
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IWMSCacheProxyPlugin::get_CacheItems
The get_CacheItems method retrieves an IWMSCacheItems interface containing a collection of IWMSCacheItem interfaces.
Syntax
HRESULT get_CacheItems( IWMSCacheItems** ppVal );
Parameters
ppVal
[out] Pointer to a pointer to an IWMSCacheItems interface. This method calls AddRef internally. To avoid memory leaks, you must call Release when you are finished using the interface.
Return Values
If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.
| Return code | Number | Description |
| E_POINTER | 0x80004003 | pProperty is a NULL pointer argument. |
Example Code
#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.
Requirements
Header: wmsserver.h.
Library: WMSServerTypeLib.dll.
Platform: Windows ServerĀ 2003 family, Windows ServerĀ 2008 family.
See Also
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