IStats::Connect

The Connect method connects the NPP to the network by using a specified NIC and provides configuration information for the connection.

HRESULT STDMETHODCALLTYPE Connect(HBLOBhInputBlob,
LPVOIDStatusCallbackProc,
LPVOIDUserContext,
HBLOBhErrorBlob);

Parameters

• hInputBlob
  [in] Handle to the BLOB that specifies the NIC that the NPP connects to and the configuration information for that connection.
• StatusCallbackProc
  [in] Address of the user's callback function, which receives status updates such as triggers. If a callback function is not used, set this parameter and the UserContext parameter to NULL.
• UserContext
  [in] Value passed when the user's callback function is called. The value of this parameter is typically either HWND or a 'this' pointer. If a callback function is not specified, set this parameter and the StatusCallbackProc parameter to NULL..
• hErrorBlob
  [out] Handle to an error BLOB that contains additional error information.

Return Values

If the method is successful, the return value is NMERR_SUCCESS.

If the method is unsuccessful, the return value is one of the following error codes (which include those errors returned by the internal IStats::Configure call):

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\nm\Parameters\CapturePath

Remarks

When the Connect method is called, Network Monitor automatically calls the IStats::Configure method by using the BLOB provided by the hInputBlob parameter. Note that any error codes returned by the call to IStats::Configure are passed back and returned by the IStats::Connect call.

This method must be called before you can start capturing frames. Note that when you connect to the network by using this method, you must continue to use the IStats interface to capture frames.

The input BLOB specified by hInputBlob can be obtained by calling the GetNPPBlobFromUI, GetNPPBlobTable, and SelectNPPBlobFromTable methods.

The error BLOB returned by the hErrorBlob parameter contains entries that Network Monitor could not understand or find in the input BLOB specified in hInputBlob. The returned error BLOB contains error information that the application can use for troubleshooting. For example, if NMERR_BLOB_ENTRY_DOES_NOT_EXIST is returned, the entry that Network Monitor could not find is included in the returned error BLOB.

Requirements

See Also

IStats::Configure, IStats::Disconnect, Network Monitor BLOBS