IWMSPlugin::get_CLSID
.gif)
| Previous | Next |
IWMSPlugin::get_CLSID
The get_CLSID method retrieves the CLSID of the plug-in.
Syntax
HRESULT get_CLSID( BSTR* pVal );
Parameters
pVal
[out] Pointer to a BSTR value containing the CLSID of the plug-in.
Return Values
If the function succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.
| Return code | Number | Description |
| E_POINTER | 0x80004003 | pVal is a NULL pointer argument. |
Remarks
The GUID is returned in the following format: {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}.
Example Code
#include <windows.h>
#include <atlbase.h> // Includes CComBSTR and CComVariant.
#include "wmsserver.h"
// Declare variables and interfaces.
IWMSServer *pServer;
IWMSPlugins *pPlugins;
IWMSPlugin *pPlugin;
HRESULT hr;
CComVariant varIndex;
CComBSTR bstrText;
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
// and retrieve the total count of plug-ins.
hr = pServer->get_ControlProtocols(&pPlugins);
if (FAILED(hr)) goto EXIT;
hr = pPlugins->get_Count(&lCount);
if (FAILED(hr)) goto EXIT;
for (long x = 0; x < lCount; x++)
{
varIndex = x;
hr = pPlugins->get_Item(varIndex, &pPlugin);
if (FAILED(hr)) goto EXIT;
// Retrieve the class ID for the plug-in.
hr = pPlugin->get_CLSID(&bstrText);
if (FAILED(hr)) goto EXIT;
// Release temporary COM objects.
pPlugin->Release();
}
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
| Previous | Next |