Socket也有专门的Unicode版本

https://www.chilkatsoft.com/refdoc/wcppCkSocketWRef.html

https://www.chilkatsoft.com/refdoc/vcCkSocketRef.html

https://www.chilkatsoft.com/refdoc/wcpp.asp

http://www.cknotes.com/chinese-character-string-literals-in-vc-8-9/

CkEmail email;

	// Tell the Chilkat object that the bytes pointed to by
	// "const char *" are utf-8:
	email.put_Utf8(true);

http://www.cknotes.com/utf8-c-property-allows-for-utf-8-or-ansi-const-char/

无数例子：http://www.example-code.com/vcpp/string.asp