如何在应用程序中调用CMD并返回运行结果

如何在应用程序中调用CMD并返回运行结果

要求做一个图形界面的应用程序，输入命令行的命令，在后台调用CMD程序执行该命令但不显示DOS命令行窗口,而且能实时显示运行的结果。哪位知道怎么处理？谢啦

代码语言：javascript复制

void CLikeCmdDlg::OnBtnExe() 
{
    // TODO: Add your control notification handler code here
    UpdateData();
    CString cs(m_childProcess);
    cs  = m_cmd;

    LPTSTR lpsz = (LPTSTR)(LPCTSTR)cs;
    m_editoutput = "";
    UpdateData(FALSE);

    SECURITY_ATTRIBUTES sa;
    HANDLE hRead,hWrite;

    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
    sa.lpSecurityDescriptor = NULL;
    sa.bInheritHandle = TRUE;
    if (!CreatePipe(&hRead,&hWrite,&sa,0))
    {
        MessageBox("Error on CreatePipe()!");
        return;
    }
    
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    si.cb = sizeof(STARTUPINFO);
    GetStartupInfo(&si);
    si.hStdError = hWrite;
    si.hStdOutput = hWrite;
    si.wShowWindow = SW_HIDE;
    si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
    if (!CreateProcess(NULL,/*"c:\windows\system32\cmd.exe /c ping google.com"*/lpsz,NULL,NULL,TRUE,NULL,NULL,NULL,&si,&pi))
    {
        MessageBox("Error on CreateProcess()!");
        return;
    }
    CloseHandle(hWrite);

//    system("ping google.com");

    char buffer[4096];
    memset(buffer,0,4096);
    DWORD byteRead;
    while(true)
    {
        if (ReadFile(hRead,buffer,4095,&byteRead,NULL) == NULL)
        {
            break;
        }
        m_editoutput  = buffer;
        UpdateData(FALSE);
        Sleep(200);
    }
} 

buffer cmd null 后台 命令行

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