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IWMSBoundIPAddresses::get_length
The get_length method retrieves the number of IP addresses in the IWMSBoundIPAddresses collection.
Syntax
HRESULT get_length( long* pVal );
Parameters
pVal
[out] Pointer to a long containing number of IP address strings in the collection.
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 | The pVal parameter is NULL. |
Remarks
This is the JScript version of the IWMSIPList::get_Count method. It is provided for developers more comfortable with JScript syntax.
Example Code
#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;
IWMSCPPluginAdmin *pCPAdmin;
IWMSBoundIPAddresses *pBoundIPAddresses;
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 control protocol plug-ins.
hr = pServer->get_ControlProtocols(&pPlugins);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to the IWMSPlugin interface
// of the plug-in to be configured.
varIndex = "WMS RTSP Server Control Protocol";
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_IWMSCPPluginAdmin,
(void **)&pCPAdmin);
if (FAILED(hr)) goto EXIT;
// Retrieve a pointer to the list of bound
// IP addresses.
hr = pCPAdmin->get_BoundIPAddresses(&pBoundIPAddresses);
if (FAILED(hr)) goto EXIT;
// Retrieve the total number of bound
// IP addresses.
hr = pBoundIPAddresses->get_length(&lCount);
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.
See Also
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