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INetFwV6Connection::IsPortOpen method

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[The IPv6 Internet Connection Firewall is available for use in the operating systems specified in the Requirements section. Instead, use the Windows Firewall API.]

The IsPortOpen method checks if inbound connection attempts are allowed for the specified port and protocol pair.

Syntax

HRESULT IsPortOpen(
  [in]  USHORT        usPort,
  [in]  PORT_PROTOCOL Protocol,
  [out] VARIANT_BOOL  pvbPortIsOpen
);

Parameters

usPort [in]

Specified in host byte order, and must be in the range 1 65535.

Protocol [in]

Specifies a value defined in the PORT_PROTOCOL enumeration.

pvbPortIsOpen [out]

Receives the port open status.

Return value

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.

Requirements
Minimum supported client
 Windows XP with SP1 [desktop apps only]
Minimum supported server
 None supported
End of client support
 Windows XP with SP1
Redistributable
 Advanced Networking Pack for Windows XP
Header
Netfwv6.h
DLL
Netfwv6.dll

See also

INetFwV6Connection