Trouble in using element.tlf_internal::getEventMirror(), examples needed !

Hi,

     I have struck in the using element.tlf_internal::getEventMirror().addEventListener(MouseEvent.CLICK, regionClickHandler) 

     for a couple of days.

     I have Adobe Flash Builder Beta 2, with new version of TextLayout Framework,  but still encountered such problems,  i found many people could solve this problem.

     So whoever did this before, offer me a solution !!!   Or  a good running example is also good

    Thanks in advance!!!