initsock.h

TCP/IP进行通信的实例

 //////////////////////////////////////////////////////////   
    
  //   initsock.h文件   
    
    
    
  #include   <winsock2.h>   
    
  #pragma   comment(lib,   "WS2_32") //   链接到WS2_32.lib   
    
    
    
  class   CInitSock   
    
  {   
    
  public:   
    
  CInitSock(BYTE   minorVer   =   2,   BYTE   majorVer   =   2)   
    
  {   
    
  //   初始化WS2_32.dll   
    
  WSADATA   wsaData;   
    
  WORD   sockVersion   =   MAKEWORD(minorVer,   majorVer);   
    
  if(::WSAStartup(sockVersion,   &wsaData)   !=   0)   
    
  {   
    
  exit(0);   
    
  }   
    
  }   
    
  ~CInitSock()   
    
  {   
    
  ::WSACleanup();   
    
  }   
    
  };