use keyboard hook
参见PRB: Modeless Dialog Box in a DLL Does Not Process TAB Key (233263)
参考文档
PRB: Modeless Dialog Box in a DLL Does Not Process TAB Key (233263)
http://support.microsoft.com/default.aspx?kbid=233263
Meandering Through the Maze of MFC Message and Command Routing
http://www.microsoft.com/msj/0795/dilascia/dilascia.aspx
C++ Q&A: Enabling Menus in MFC Apps, Changing the Behavior of Enter with DLGKEYS Sample App -- MSDN Magazine, July 2000
http://msdn.microsoft.com/msdnmag/issues/0700/c/default.aspx