> Happy new year!
> I have an application that create UI threads dialog boxes as steps
> below.

> 1)
> void CSysTab_EditorMainFrame::OnSearch()
> {
>         CFindThread* pFindThread = new CFindThread(m_hWnd); //thread
> dies when wnd closes
>         pFindThread->CreateThread();
> }
> 2)thread creates dialog
> BOOL CFindThread::InitInstance()
> {
>         BOOL bReturn = m_wndSearchDlg.Create(IDD_SEARCH_DLG);
>         m_wndSearchDlg.ShowWindow(SW_SHOW);
>         m_pMainWnd = &m_wndSearchDlg;
>         return TRUE;
> }
> The problem:
> if i close the main application and several dialogs are about the
> threads do not die cleanly and at times the OS hangs!!!

> I tried EnumChildWindows and sending WM_CLOSE (kills thread
> automatically) to all child windows and their child windows but since
> these dialogs are pop ups and not child windows it doesnt work.

> Hope someone can figure this one out for me

> Thnx in advance
> Alon