ReadMe.txt

This application is used to research behavior of Microsoft TSF (Text Service Framework), aka TFS-aware app.

1. Once you start the application, a timer starts automatically. What the timer does is to check whether
   the TSF thread manager got focus and whether there is a focused document manager. Check out codes in
   void CTsfAppForResearchDlg::OnTimer(UINT_PTR nIDEvent).
2. The button, "Enable Languange Switch Watcher", allows you to watch language profile switch events sent
   by TSF. Click to enable the watcher and switch different IMEs to see what happens. You can switch
   different keyboard layouts such as English/Chinese/Japanese. And different languages such as 
   MS Pinyin, Baidu Pinyin, Google Pinyin.

My Research results:
   1. The ThreadManager gets focus when TextEdit control gets focus.
   2. The TextEdit control has natively TSF support. So if you put focus in the TextEdit Control, you
      will see the Document Manager is accessible.
   3. If you put focus to other controls like Button, the Thread manager still gets the focus but there
      isn't a focused document manager. So thread manager getting focus doesn't mean, there is a focused
	  document manager.

Related Codes:
   1. TsfManager.cpp: LW class to encapsulate some TSF APIs.
   2. TsfAppForResearchDlg.cpp: Invoke TSFManager APIs.