C / C++ / MFC

void AFXAPI AfxHookWindowCreate(CWnd* pWnd)
{
	_AFX_THREAD_STATE* pThreadState = _afxThreadState.GetData();
	if (pThreadState->m_pWndInit == pWnd)
		return;

#ifndef _WIN32_WCE
	if (pThreadState->m_hHookOldCbtFilter == NULL)
	{
		pThreadState->m_hHookOldCbtFilter = ::SetWindowsHookEx(WH_CBT,
			_AfxCbtFilterHook, NULL, ::GetCurrentThreadId());
		if (pThreadState->m_hHookOldCbtFilter == NULL)
			AfxThrowMemoryException();
	}
	ASSERT(pThreadState->m_hHookOldCbtFilter != NULL);
#endif // !_WIN32_WCE

	   ASSERT(pWnd != NULL);
 ASSERT(pWnd->m_hWnd == NULL);   // only do once----->ERROR

	ASSERT(pThreadState->m_pWndInit == NULL);   // hook not already in progress
	pThreadState->m_pWndInit = pWnd;
}

void Ctest::OnBnClickedButton4()
{
m_bar.Create(this); //We create the status bar
    m_bar.SetIndicators(indicators,2); //Set the number of panes 
    CRect rect;
    GetClientRect(&rect);
    //Size the two panes
    m_bar.SetPaneInfo(0,progressbarn, SBPS_NORMAL,rect.Width()-100);      
    m_bar.SetPaneInfo(1,progressbarm,SBPS_STRETCH ,0);
                

   //This is where we actually draw it on the screen
    RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,
    progressbarn);

               
    pPrgCtrl->Create(WS_CHILD | WS_VISIBLE, CRect(10, 10, 288, 35), this,0x16);
   // Change parent of progress bar to status bar
    pPrgCtrl->SetParent(&m_bar);

    // Set up progressbar in the first pane
    CRect crPaneRect;
    m_bar.GetStatusBarCtrl().GetRect( 1, &crPaneRect );
                 
           
    // Adjust rectangle, deflate a bit
    crPaneRect.DeflateRect( 0, 2, 2, 2 );
    // Move progress rectangle into position, i.e. into first pane of statusbar
    pPrgCtrl->MoveWindow( crPaneRect );
   	 s="showing progress ";
   m_bar.SetPaneText(0,s);
}