BOOL CWinThread::PumpMessage()
{
  return AfxInternalPumpMessage();
}

BOOL AFXAPI AfxInternalPumpMessage()
{
 _AFX_THREAD_STATE *pState = AfxGetThreadState();

 if (!::GetMessage(&(pState->m_msgCur), NULL, NULL, NULL))
 {
#ifdef _DEBUG
  TRACE(traceAppMsg, 1, _T("CWinThread::PumpMessage - Received WM_QUIT.\n"));
   pState->m_nDisablePumpCount++; // application must die
#endif
  // Note: prevents calling message loop things in 'ExitInstance'
  // will never be decremented
  return FALSE;
 }

#ifdef _DEBUG
  if (pState->m_nDisablePumpCount != 0)
 {
   TRACE(traceAppMsg, 0, _T("Error: CWinThread::PumpMessage called when not permitted.\n"));
   ASSERT(FALSE);
 }
#endif

#ifdef _DEBUG
 _AfxTraceMsg(_T("PumpMessage"), &(pState->m_msgCur));
#endif

  // process this message

 if (pState->m_msgCur.message != WM_KICKIDLE && !AfxPreTranslateMessage(&(pState->m_msgCur)))
 {
  ::TranslateMessage(&(pState->m_msgCur));
  ::DispatchMessage(&(pState->m_msgCur));
 }
  return TRUE;
}
BOOL __cdecl AfxPreTranslateMessage(MSG* pMsg)
{
  CWinThread *pThread = AfxGetThread();
  if( pThread )
 return pThread->PreTranslateMessage( pMsg );
  else
 return AfxInternalPreTranslateMessage( pMsg );
}
BOOL CWinThread::PreTranslateMessage(MSG* pMsg)
{
 ASSERT_VALID(this);
 return AfxInternalPreTranslateMessage( pMsg );
}
BOOL AfxInternalPreTranslateMessage(MSG* pMsg)
{
// ASSERT_VALID(this);

 CWinThread *pThread = AfxGetThread();
 if( pThread )
 {
  // if this is a thread-message, short-circuit this function
  if (pMsg->hwnd == NULL && pThread->DispatchThreadMessageEx(pMsg))
   return TRUE;
 }

 // walk from target to main window
 CWnd* pMainWnd = AfxGetMainWnd();
 if (CWnd::WalkPreTranslateTree(pMainWnd->GetSafeHwnd(), pMsg))
  return TRUE;

 // in case of modeless dialogs, last chance route through main
 //   window's accelerator table
 if (pMainWnd != NULL)
 {
   CWnd* pWnd = CWnd::FromHandle(pMsg->hwnd);
   if (pWnd->GetTopLevelParent() != pMainWnd)
   return pMainWnd->PreTranslateMessage(pMsg);
 }

 return FALSE;   // no special processing
}

BOOL PASCAL CWnd::WalkPreTranslateTree(HWND hWndStop, MSG* pMsg)
{
 ASSERT(hWndStop == NULL || ::IsWindow(hWndStop));
 ASSERT(pMsg != NULL);

 // walk from the target window up to the hWndStop window checking
 //  if any window wants to translate this message

 for (HWND hWnd = pMsg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
 {
  CWnd* pWnd = CWnd::FromHandlePermanent(hWnd);
  if (pWnd != NULL)
  {
   // target window is a C++ window
   if (pWnd->PreTranslateMessage(pMsg))
    return TRUE; // trapped by target window (eg: accelerato

rs)
  }

  // got to hWndStop window without interest
  if (hWnd == hWndStop)
   break;
 }
 return FALSE;       // no special processing
}