如何通过winsock发送UNICODE [英] How to send UNICODE via winsock

问题描述

send和recv只支持char *数据类型，Winsock是否有其他函数支持UNICODE？

int WSAAPI发送（

  SOCKET     s，$
  const char * buf，

  int    ;      len，

  int        flags

）;

https://docs.microsoft .com / zh-CN / windows / desktop / api / winsock2 / nf-winsock2-send

int WSAAPI recv（

  SOCKET s，

  char   * buf，

  int    len，

  int   ; 标志

）;

https://docs.microsoft.com/en-us/windows/desktop/api/winsock2/nf-winsock2-recv

解决方案

send和recv是C编程遥远过去的遗留物，其中"char *"是通用缓冲类型。 它实际上仅仅意味着"指向缓冲区的指针"。 您可以发送您想要的任何字符或二进制数据。 
只需将缓冲区指针强制转换为（char *）即可发送它。

但请注意，另一端的套接字需要知道您正在发送Unicode。  它没有得到您发送的数据类型的任何指示。

The send and recv only support char* data type, does Winsock have other functions to support UNICODE ?

int WSAAPI send(
  SOCKET     s,
  const char *buf,
  int        len,
  int        flags
);

https://docs.microsoft.com/en-us/windows/desktop/api/winsock2/nf-winsock2-send

int WSAAPI recv(
  SOCKET s,
  char   *buf,
  int    len,
  int    flags
);

https://docs.microsoft.com/en-us/windows/desktop/api/winsock2/nf-winsock2-recv

解决方案

send and recv are remnants of the distant past of C programming, where "char *" was the universal buffer type.  It really just means "pointer to a buffer of bytes".  You can send whatever character or binary data you want.  Just cast the buffer pointer to (char *) to send it.

Notice, however, that the socket on the other end needs to KNOW that you're sending Unicode.  It doesn't get any indication of what data types you're sending.

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