If no flag is specified (this is the same as @b wxSOCKET_NONE),
IO calls will return after some data has been read or written, even
when the transfer might not be complete. This is the same as issuing
exactly one blocking low-level call to recv() or send(). Note
that @e blocking here refers to when the function returns, not
to whether the GUI blocks during this time.
If no flag is specified (this is the same as @b wxSOCKET_NONE),
IO calls will return after some data has been read or written, even
when the transfer might not be complete. This is the same as issuing
exactly one blocking low-level call to recv() or send(). Note
that @e blocking here refers to when the function returns, not
to whether the GUI blocks during this time.