#6 Error codes from openSocket() (windows)

[Marco Lazzarotto]

I have added error codes and a function

EXPORTSPEC DWORD daveGetOpenSocketErr();

to retrieve it.

Error is nonzero if anything fails...

Hope it helps, I include the modified files

[Marco Lazzarotto]

btw, how to get the error string :

LPVOID lpMsgBuf;
DWORD res = FormatMessage(
        FORMAT_MESSAGE_ALLOCATE_BUFFER | 
        FORMAT_MESSAGE_FROM_SYSTEM |
        FORMAT_MESSAGE_IGNORE_INSERTS,
    nullptr,
    daveGetOpenSocketErr(),
    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
    (LPTSTR) &lpMsgBuf,
    0,
    nullptr);
if ( res > 0 )
{
    // use string ...
    LocalFree(lpMsgBuf);
}