windows pipe

BOOL PipeTest()
{
    BOOL bret;

    SECURITY_ATTRIBUTES sa;
    HANDLE hReadPipe, hWritePipe;

    sa.nLength = sizeof(SECURITY_ATTRIBUTES);
    sa.lpSecurityDescriptor = NULL;
    sa.bInheritHandle = TRUE;

    bret = CreatePipe(&hReadPipe, &hWritePipe, &sa, 0);
    if (!bret)
    {
        return FALSE;
    }

    STARTUPINFO si;
    PROCESS_INFORMATION pi;

    si.cb = sizeof(STARTUPINFO);
    GetStartupInfo(&si);  // SecureZeroMemory(si, sizeof(si));
    si.hStdError   = hWritePipe;
    si.hStdOutput  = hWritePipe;
    si.wShowWindow = SW_HIDE;
    si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;

    bret = CreateProcess (NULL, /* command line */, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi );
    if (!bret)
    {
        return FALSE;
    }

    CloseHandle(pi.hProcess);
    CloseHandle(pi.hThread);
    CloseHandle(hWritePipe);

 char szBuffer[MAX_COMMAND_SIZE + 1];
    unsigned long count;

    bret = ReadFile(hReadPipe, szBuffer, MAX_COMMAND_SIZE, &count, 0);
    CloseHandle(hReadPipe);
    if (!bret)
    {
        return FALSE;
    }
   
    /*
     do something what you want!
    */

    return TRUE;
}