?? ipcclient.cpp
字號:
// IPCClient.cpp : implementation file
//
#include "stdafx.h"
#include "resource.h"
#include "IPCClient.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CIPCClient
/*
*構造函數
*/
CIPCClient::CIPCClient()
{
m_ServerWinHwnd = 0;
m_SessionHandle = 0;
m_Active = false;
//注冊消息常量
m_ServerDisconnectHwnd = RegisterWindowMessage(IPCServerDisconnecting);
m_ConnectRequestHwnd = RegisterWindowMessage(IPCConnectRequest);
m_ConnectResposeHwnd = RegisterWindowMessage(IPCConnectRespose);
m_ClientDisconnectHwnd = RegisterWindowMessage(IPCClientDisconnecting);
}
CIPCClient::~CIPCClient()
{
}
BEGIN_MESSAGE_MAP(CIPCClient, CWnd)
//{{AFX_MSG_MAP(CIPCClient)
// NOTE - the ClassWizard will add and remove mapping macros here.
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CIPCClient message handlers
/*
*函數介紹:建立同服務器的連接
*入口參數:parentWnd指定創建此類的窗口指針
*出口參數:(無)
*返回值:(無)
*/
void CIPCClient::Open(CWnd *parentWnd)
{
if (!m_Active)
{
m_ParentWnd = parentWnd;
//注冊連接會話的消息標識符
m_SessionHandle = RegisterWindowMessage(m_SessionName);
::SendMessage(HWND_BROADCAST, m_ConnectRequestHwnd, WPARAM(m_hWnd), LPARAM(m_SessionHandle));
}
}
/*
*函數介紹:關閉同服務器的連接
*入口參數:parentWnd指定創建此類的窗口指針
*出口參數:(無)
*返回值:(無)
*/
void CIPCClient::Close()
{
if (m_Active)
{
//廣播消息,客戶端斷開
::SendMessage(HWND_BROADCAST, m_ClientDisconnectHwnd, WPARAM(m_hWnd), LPARAM(m_SessionHandle));
m_Active = false;
}
}
/*
*函數介紹:發送數據到服務器
*入口參數:MsgPointer : 發送的數據指針
ASize : 發送的數據大小
*出口參數:(無)
*返回值:(無)
*/
void CIPCClient::SendMsg(LPVOID MsgPointer, DWORD ASize)
{
COPYDATASTRUCT copyDataStruct;
if (m_ServerWinHwnd != 0)
{
copyDataStruct.dwData = DWORD(m_hWnd);
copyDataStruct.cbData = ASize;
copyDataStruct.lpData = MsgPointer;
//向服務器端窗口發送WM_COPYDATA消息
::SendMessage(m_ServerWinHwnd, WM_COPYDATA, m_SessionHandle, LPARAM(©DataStruct));
}
}
LRESULT CIPCClient::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
LPVOID MsgPointer;
DWORD bufLen;
//根據消息種類,分別執行
//WM_CopyData消息
if (message == WM_COPYDATA)
{
bufLen = ((PCOPYDATASTRUCT)lParam)->cbData;
MsgPointer = ((PCOPYDATASTRUCT)lParam)->lpData;
m_ClientDataArrive(m_ParentWnd,MsgPointer,bufLen);
//處理客戶端接收數據事件
}
//連接響應消息
else if (message == m_ConnectResposeHwnd)
{
if (!m_Active)
{
m_ServerWinHwnd = HWND(wParam);
//連接響應事件
m_ClientConnected(m_ParentWnd,m_ServerWinHwnd);
m_Active = true;
}
}
//服務器端斷開連接消息
else if (message == m_ServerDisconnectHwnd)
{
if (m_Active)
{
if (wParam = DWORD(m_ServerWinHwnd))
{
//觸發斷開事件
m_ClientDisConnected(m_ParentWnd,m_ServerWinHwnd);
m_ServerWinHwnd = 0;
m_Active = false;
}
}
}
return CWnd::WindowProc(message, wParam, lParam);
}
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