c++ 简单进程交互(获取双方进程句柄)

来源：互联网发布：java面向过程实现加法编辑：程序博客网时间：2024/06/07 02:07

一:主进程打开子进程

    char chCmdLine[256];    sprintf(chCmdLine," /%d /%d /%d /Class:Quote%d",m_hWnd,1,1,GetCurrentProcessId());// /父窗口句柄 / /是否内嵌打开 /    ShellExecute(NULL, NULL,"子进程名", chCmdLine, NULL, SW_SHOWNORMAL);

二:子进程通过主进程打开的命令行获取主进程句柄

CString sParameter;for (int i = 1; i < __argc; i++){sParameter = __argv[i];if(i == 1)m_ParentHWnd = (HWND)atoi(sParameter.Mid(1));}

三:子进程将子进程句柄发给主进程

        HqLoginMsg loginMsg;        loginMsg.m_nType = 1;        loginMsg.m_hWnd = NULL;        loginMsg.m_hMainWnd = this->m_hWnd;        loginMsg.m_nProcessID = GetCurrentProcessId();        loginMsg.m_nID = 1;        COPYDATASTRUCT data;        data.dwData = WM_COPYDATA_LoginWnd;        data.cbData = sizeof(HqLoginMsg);         data.lpData = &loginMsg;        ::SendMessage(m_ParentHWnd,WM_COPYDATA,(WPARAM)m_hWnd,(LPARAM)&data);

四:主进程保存子进程句柄信息

BOOL OnCopyData(CWnd* pWnd, COPYDATASTRUCT* pCopyDataStruct) {switch(pCopyDataStruct->dwData){case WM_COPYDATA_LoginWnd:{if(m_pHqLoginMsg == NULL)m_pHqLoginMsg = new HqLoginMsg;memcpy(m_pHqLoginMsg,pCopyDataStruct->lpData,sizeof(HqLoginMsg));}break;       } return True;}

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