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I am confused about couple of things about winsock.
First, what the difference between including Winsock2.h vs winsock2.h (caps of 'w')
Second, what is the difference between linking with wsock32.lib with ws2_32.lib?
I have tried couple of combinations and they result in compile time errors. Can anyone explain me the logical reasoning behind what to use?
Thanks Nick
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The library ws2_32. lib is an import library. It consist of small stubs that will redirect to the actual implementation in ws2_32. dll.
The Winsock2. h header file internally includes core elements from the Windows. h header file, so there is not usually an #include line for the Windows. h header file in Winsock applications. If an #include line is needed for the Windows.
The fd_set structure (winsock. h) is used by Windows Sockets (Winsock) functions and service providers to place sockets into a set. HOSTENT. The HOSTENT (winsock. h) structure is used by functions to store information about a given host, such as host name, IPv4 address, and so forth.
The current Winsock DLL, Ws2_32. dll, supports applications that request any of the following versions of Windows Sockets specification: 1.0.
There is no difference between Winsock2.h and winsock2.h. Filenames are case-insensitive on typical Windows filesystems. The ws2_32.lib file is for Winsock 2, while wsock32.lib is for the obsolete, older version.
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