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Visual C++

Client.cpp：源码内容

							// Client.cpp: implementation of the CClient class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "Example1.h"
#include "Client.h"
#include "Example1Dlg.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CClient::CClient()
{
	m_hSocket =NULL;
}
CClient::~CClient()
{
}
BOOL CClient::InitAndConnet(HWND hwnd,UINT port,CString strserver)
{
	m_hWnd=hwnd;
	m_uPort=port;
	m_strServer=strserver;
	if(m_hSocket != NULL)
	{
		closesocket(m_hSocket);
		m_hSocket = NULL;
	}
	m_hSocket = socket(AF_INET, SOCK_STREAM,0);
	ASSERT(m_hSocket != NULL);
	ClientInit();
	m_addr.sin_family = AF_INET;
	m_addr.sin_addr.S_un.S_addr = inet_addr(m_strServer.GetBuffer(0));
	m_addr.sin_port = htons(m_uPort);
	
	int ret = 0;
	int error = 0;
	ret = connect(m_hSocket, (LPSOCKADDR)&m_addr, sizeof(m_addr));
	if(ret == SOCKET_ERROR)
	{
		if(GetLastError()!=WSAEWOULDBLOCK)
		{
			AfxMessageBox(_T("请确认服务器确实已经打开并工作在同样的端口！"));
			return FALSE;
		}
	}
	return TRUE;
}
void CClient::SendString(CString a)
{
	if(send(m_hSocket,a.GetBuffer(0),a.GetLength(),0)==SOCKET_ERROR)
	{
		AfxMessageBox("Client Send data error");
	}
}
void CClient::GetString(CString &str)
{
	recv(m_hSocket,str.GetBuffer(0),1024,MSG_DONTROUTE);
}
void CClient::ClientInit()
{
	if(WSAAsyncSelect(m_hSocket,m_hWnd,CLI_MESSAGE,FD_READ|FD_WRITE|FD_CLOSE|FD_CONNECT)>0)
	{
		AfxMessageBox("Error in select");
	}
}

						