void CtsclientDlg::OnBnClickedOk()
{
// TODO: 在此添加控件通知处理程序代码
WORD wVersionRequested;
WSADATA wsaData;
int err;
int nScokErr;
wVersionRequested=MAKEWORD(1,1);
//生成版本号1.1
err=WSAStartup(wVersionRequested,&wsaData);
if(err!=0)
{
MessageBox("找不到合适的Dll文件","错误",MB_OK);
return;
}
//确定WinSock Dll是否支持1.1版本
//如果Dll支持高于1.1版本。确定返回的版本号是客户要求的1.1
if(LOBYTE(wsaData.wVersion)!=1||HIBYTE(wsaData.wVersion)!=1)
{
MessageBox("Dll版本不适合本应用程序！","错误",MB_OK);
WSACleanup();
return;
}
SOCKET sClientSock;
sockaddr_in addr;
int nSockErr;
//创建套接字
sClientSock=socket(AF_INET,SOCK_STREAM,0);
addr.sin_family=AF_INET;
addr.sin_port=0;//自动分配端口
addr.sin_addr.s_addr=htons(INADDR_ANY);
//为套接字分配地址
if(bind(sClientSock,(LPSOCKADDR)&addr,sizeof(addr))==SOCKET_ERROR)
{
nSockErr=WSAGetLastError();
MessageBox("绑定套接字时出错:"+nSockErr,"错误",MB_OK);
WSACleanup();
return;
}
sockaddr_in ServAddr;
ServAddr.sin_family =AF_INET;
ServAddr.sin_port=htons(6000);
ServAddr.sin_addr.s_addr=inet_addr("192.168.0.252");
//连接到服务器
if(connect(sClientSock,(struct sockaddr *)&ServAddr,sizeof(ServAddr))==SOCKET_ERROR)
{
nScokErr=WSAGetLastError();
MessageBox("连接错误！","错误",MB_OK);
}
MessageBox("连接成功！","成功",MB_OK);
Sleep(3000);
char FAR *buf;
buf="1234567890123456";
send(sClientSock,buf,16,0);
closesocket(sClientSock);
OnOK();
}
