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getsockopt The Windows Sockets getsockopt function retrieves a socket option.
VB4-32,5,6
Declare Function getsockopt Lib "wsock32.dll" (ByVal s As Long, ByVal Level As Long, ByVal optname As Long, optval As Any, optlen As Long) As Long |
VB.NET
System.Net.Sockets.Socket.SetSocketOption |
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Operating Systems Supported |
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Requires Windows Sockets 2.0 |
- s
[in] A descriptor identifying a socket.
- level
[in] The level at which the option is defined; the supported levels include SOL_SOCKET and IPPROTO_TCP. See the Protocol-specific Annex (a separate document included with the Win32 SDK) for more information on protocol-specific levels.
- optname
[in] The socket option for which the value is to be retrieved.
- optval
[out] A pointer to the buffer in which the value for the requested option is to be returned.
- optlen
[in/out] A pointer to the size of the optval buffer. |
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If no error occurs, getsockopt returns zero. Otherwise, a value of SOCKET_ERROR is returned, and a specific error code can be retrieved by calling WSAGetLastError. |
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