It's not clear what the int parameter is/means, which is passed to the constructor: is it a port number, a socket handle, or what?

The class seems to be missing some useful functions: including list, accept, connect, send, and recv.

I'm not sure why you have 3 detectError methods: I'd get they're all wrappers around the same WSAGetLastError API.

I don't see how void getSendBufferSize(int) can get the size: the int needs to be the return code, or a reference parameter; and perhaps it should be size_t not int.

Maybe your 'set option' functions should return bool if they can fail; if they don't return bool then how is the user to know whether they should call the detectError method?

It's not clear what the int parameter is/means, which is passed to the constructor: is it a port number, a socket handle, or what?

The class seems to be missing some useful functions: including listen, accept, connect, send, and recv.

I'm not sure why you have 3 detectError methods: I'd get they're all wrappers around the same WSAGetLastError API.

I don't see how void getSendBufferSize(int) can get the size: the int needs to be the return code, or a reference parameter; and perhaps it should be size_t not int.

Maybe your 'set option' functions should return bool if they can fail; if they don't return bool then how is the user to know whether they should call the detectError method?