MFC网络编程，CSocket，网络通信，网络聊天室

CSocketServer

BOOL CCSocketServerDlg::OnInitDialog()
{
//时刚开始接收的按钮无效
m_recv.EnableWindow(false);


return TRUE;  // return TRUE  unless you set the focus to a control
}
void CCSocketServerDlg::OnListen() 
{
// TODO: Add your control notification handler code here
// m_server.Create(1900);//端口
m_server.Bind(4001);
m_server.Listen();//监听
m_server.Accept(m_receive);
m_recv.EnableWindow(true);//接收按钮有效
m_listen.EnableWindow(false);//监听按钮无效

}


void CCSocketServerDlg::OnReceive() 
{
// TODO: Add your control notification handler code here
char buf[255]="";
m_receive.Receive(buf,255,0);//接收消息到buf
CString s_msg;
s_msg.Format("%s",buf);//buf的值传到字符串s_mg
m_EDITValue=m_EDITValue+s_msg;
UpdateData(false);
}
CSocketClient
BOOL CCSocketClientDlg::OnInitDialog()
{ m_ip=CString("127.0.0.1");//默认的ip地址
UpdateData(false);
m_send.EnableWindow(false);//发送按钮失效
return TRUE;  // return TRUE  unless you set the focus to a control
}
void CCSocketClientDlg::OnSend() 
{
// TODO: Add your control notification handler code here
UpdateData(true);
m_client.Send(m_message,255);
m_msg.SetSel(0,-1);//发送全部文字
m_msg.ReplaceSel("",true);//发送框置空

}


void CCSocketClientDlg::OnConnect() 
{
// TODO: Add your control notification handler code here
UpdateData(true);
m_client.Create(4001);//创建端口，采用默认的端口号
if(m_client.Connect(m_ip,4001))
{
MessageBox("客户端连接成功!");
m_send.EnableWindow(true);
m_connect.EnableWindow(false);//禁止再连接
}
else
{
MessageBox("客户端连接失败!");
}

}


void CCSocketClientDlg::OnDestroy() 
{
CDialog::OnDestroy();

// TODO: Add your message handler code here
m_client.Close();
}