如何给局域网上的用户或进程发送消息?

Question

给出源码最好!!!

Answer 1

http://www.ccidnet.com/tech/network/2000/07/28/58_1017.html

Answer 2

有SOCKET、PIPE、RPC和NETBIOS方法的源程序吗?给出的人,我给他加分

Answer 3

在serverview.cpp 中 重 载CServerView() 构 造 器, 创 建 并 绑 定 嵌 套 字： 
      CServerView::CServerView()
{     // TODO: add construction code here
      Isconnect=FALSE;
      flag=FALSE;
      sizeTotal.cy=350;
      sizeTotal.cx=300;
      m_hListenThread;
      count=5;
      int status;
      WSADATA wsaData;
   m_data[0]=“initializing Windows Sockets DLL....";
      if((status=WSAStartup(0x0101, ＆wsaData))==0)
      {     m_data[0] ＋=“Succeeded";
            m_bInitialized=TRUE;
      }
      else
      {     m_bInitialized=FALSE;
      }
      m_sock=socket(AF_INET,SOCK_DGRAM,0);
      m_data[1]=“Creating socket....";
      if(m_sock==INVALID_SOCKET)
      {     m_data[1] ＋=“Failed";
      }
      m_data[1] ＋=“Succeeded";
      m_data[2]=“Binding socket....";
      sockaddr_in sa;
      sa.sin_family=AF_INET;
      sa.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
      sa.sin_port=htons(5050);
      if(bind(m_sock,(PSOCKADDR) 
     ＆sa,sizeof(sa))==SOCKET_ERROR)
      {     m_data[2] ＋=“Failed";
            closesocket(m_sock);
      }
      m_data[2] ＋=“Succeeded";
      m_data[3]=“Creating listener thread....";
      unsigned long idThread;
 m_hListenThread=CreateThread(NULL,0,
(LPTHREAD_START_ROUTINE)Listen,
(void        if(m_hListenThread)
      {     m_data[3] ＋=“Succeeded";
            m_data[4] ＋=“Listening....";
      }
      else
            m_data[4] ＋=“Failed";
} 
定 义 接 收 和 处 理 消 息 的 线 程: 
      long WINAPI Listen(CServerView ＊pView)
{     char msg[2000]=“";
      int   nchar;
      SOCKADDR_IN saClnt;
      int saClntLen;
      while(1)
      { saClntLen=sizeof(saClnt);
        nchar=recvfrom(pView －>m_sock,msg,1024,0, 
(PSOCKADDR) ＆saClnt, ＆saClntLen);
        if(nchar<0)
        {     pView －>m_data[pView －>count ＋ ＋] ＋
             =“Error in recvfrom\n";
        pView －>InvalidateRect(NULL);
        }
        else
        {switch(msg[0])
        {
        case  ‘A':
        wsprintf(msg,“A:Client from ％s attached\n",
               inet_ntoa(saClnt.sin_addr));
        pView －>m_data[pView －>count ＋ ＋]=msg;
        pView －>flag=TRUE;
        pView －>InvalidateRect(NULL);
        pView －>Isconnect=TRUE;
        pView －>saClnt=saClnt;
        pView －>saClntLen=saClntLen;
        sendto(pView －>m_sock,msg,1024,0,(PSOCKADDR) 
        ＆saClnt,saClntLen);
        break;
                  
        case ‘D':
        wsprintf(msg,“D: Client form ％s detached\n",
                inet_ntoa(saClnt.sin_addr));
        pView －>m_data[pView －>count ＋ ＋]=msg;
        pView －>flag=TRUE;
        pView －>InvalidateRect(NULL);
        pView －>Isconnect=FALSE;
       sendto(pView －>m_sock,msg,1024,0,(PSOCKADDR) 
       ＆saClnt,saClntLen);
        break;        case ‘R':
        saClntLen=sizeof(saClnt);
        pView －>m_data[pView －>count ＋ ＋]=msg;
        pView －>flag=TRUE;
        pView －>InvalidateRect(NULL);
        break;        default:
        break;
        }
        }
            
      }
      return(0);
}
添 加 接 收 与 发 送 消 息 的 线 程: 
      long WINAPI Listen(CClientView ＊pView)
{     char msg[2000];
      pView －>m_data[5]=“Sending ATTACH command";
      pView －>InvalidateRect(NULL);
      wsprintf(msg,“A: ");
     sendto(pView －>m_sock,msg,1024,0,(PSOCKADDR)
     ＆pView －>m_saSrvr,sizeof(pView －>m_saSrvr));
      int saSrvrLen ,nchar;
      while(1)
      {saSrvrLen=sizeof(pView －>m_saSrvr);
      nchar=recvfrom(pView －>m_sock,msg,1024,0,
   (PSOCKADDR) ＆pView －>m_saSrvr, ＆saSrvrLen);
      if(nchar<0)
     {    pView －>m_data[pView －>count ＋ ＋]=
             “Error in recvform";
      pView －>InvalidateRect(NULL);}
      else
     { pView －>m_data[pView －>count ＋ ＋]=msg;
                  pView －>Isconnect=TRUE;
                  pView －>flag=TRUE;
                  pView －>InvalidateRect(NULL);
            }
      }
      return(0);
}