IWMSCacheItems::Delete
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IWMSCacheItems::Delete
The Delete method removes an IWMSCacheItem interface from the IWMSCacheItems collection.
Syntax
HRESULT delete( VARIANT varIndex );
Parameters
varIndex
[in] VARIANT that specifies the IWMSCacheItem interface to be removed from the collection. It can be an index or a pointer.
Return Values
If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.
Return code | Number | Description |
DISP_E_BADINDEX | 0x8002000B | varIndex is not a valid index location. |
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; 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 // 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, // 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; // Remove the first cache item. varIndex = 0; hr = pCacheProxyPlugin->Delete(varIndex); if (FAILED(hr)) goto EXIT; EXIT: // TODO: Release temporary COM objects and uninitialize COM.
Requirements
Header: wmsserver.h.
Library: WMSServerTypeLib.dll.
Platform: Windows Server 2003 family, Windows Server 2008 family.
See Also
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