IWMSAdminNetworkDataSourcePlugin::get_UDPEnabled
The get_UDPEnabled method retrieves a Boolean value indicating whether the data source plug-in can use UDP when selecting a streaming protocol.
HRESULT get_UDPEnabled(
VARIANT_BOOL* pVal
);
Arguments
pVal |
[out] Pointer to a VARIANT_BOOL indicating whether UDP can be used. |
Return Value
If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.
Example
#include <windows.h>
#include <atlbase.h> // Includes CComVariant.
// To access system plug-in interfaces, the
// entire type library must be imported as shown.
#import "WMSServerTypeLib.dll" no_namespace named_guids \
raw_interfaces_only
// Declare variables and interfaces.
IWMSServer *pServer;
IWMSPlugins *pPlugins;
IWMSPlugin *pPlugin;
IDispatch *pDispatch;
IWMSAdminNetworkDataSourcePlugin *pAdminNetDataSrc;
HRESULT hr;
VARIANT_BOOL bEnabled;
CComVariant varIndex;
// 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 data source plug-ins.
hr = pServer->get_DataSources(&pPlugins);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to the IWMSPlugin interface
// of the plug-in to be configured.
varIndex = "WMS Network Data Source";
hr = pPlugins->get_Item(varIndex, &pPlugin);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to the custom interface
// of the plug-in.
hr = pPlugin->get_CustomInterface(&pDispatch);
if (FAILED(hr)) goto EXIT;
// Query the specific administration interface
// for the plug-in.
hr = pDispatch->QueryInterface(IID_IWMSAdminNetworkDataSourcePlugin,
(void **)&pAdminNetDataSrc);
if (FAILED(hr)) goto EXIT;
// Retrieve a Boolean value indicating whether UDP
// can be used as a streaming protocol.
hr = pAdminNetDataSrc->get_UDPEnabled(&bEnabled);
if (FAILED(hr)) goto EXIT;
EXIT:
// TODO: Release temporary COM objects and uninitialize COM.
Requirements
Library: WMSServerTypeLib.dll.
Platform: Windows Server 2003 family, Windows Server 2008 family.