IStaticPortMapping::get_ExternalIPAddress method (natupnp.h)

The get_ExternalIPAddress method retrieves the external IP address for this port mapping on the NAT computer.

Syntax

HRESULT get_ExternalIPAddress(
  [out] BSTR *pVal
);

[out] pVal

Pointer to a BSTR variable that receives the external IP address for this port mapping on the NAT computer.

If the method succeeds the return value is S_OK.

If the method fails, the return value is one of the following error codes.

Return code	Description
E_ABORT	The operation was aborted.
E_FAIL	An unspecified error occurred.
E_INVALIDARG	One of the parameters is invalid.
E_NOINTERFACE	A specified interface is not supported.
E_NOTIMPL	A specified method is not implemented.
E_OUTOFMEMORY	The method was unable to allocate required memory.
E_POINTER	A pointer passed as a parameter is not valid.
E_UNEXPECTED	The method failed for unknown reasons.

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	natupnp.h
DLL	Hnetcfg.dll