- Add other font codes ==> modify VKAddKey and
make it works with 2 bytes fonts code and unicode
fonts
- Use some timeout-function to check mouse status
and focus window rather than fork another process
(Notice: Xt already had some timeout function ==>
Change to use Xt ???) ===> faster
* Use window property instead of window_cache buffer
to check Mapped, Unmapped & Destroyed Window ====>
more faster than the current using method (window_cache)