WSAAsyncSelect模型 实现socket客户端接收数据的例子

(1) h文件中声明网络事件响应函数

afx_msg void OnNetEvent(WPARAM wParam, LPARAM lParam); 

 

(2)cpp文件中把NETWORK_EVENT事件映射到OnNetEvent()函数

BEGIN_MESSAGE_MAP(CInstrumentStatusView, CFormView) ON_MESSAGE(NETWORK_EVENT,OnNetEvent) END_MESSAGE_MAP() 

 

(3)OnNetEvent()函数体, 对FD_CONNECT, FD_CLOSE, FD_READ事件进行响应处理

void CInstrumentStatusView::OnNetEvent(WPARAM wParam, LPARAM lParam) { int iEvent = WSAGETSELECTEVENT(lParam); int error = WSAGETSELECTERROR(lParam); //if error!=0, it means failure SOCKET CurSock= (SOCKET)wParam; if(error) { AfxMessageBox("OnNetEvent()接收到错误消息"); closesocket(wParam); return; } switch(iEvent){ case FD_CONNECT: OnSockConnect(error); //void CInstrumentStatusView::OnSockConnect(int error);