Hi Vlad,

Thank you for yr advice.
Anyhow i solved my problem with another way.
Bcz i have other codes in parent textbox's keypress event, i used
timers at application level to force selected letters be last 2byte if form's
current activecontrol is textbox.
i think it's not generic way and will dig into more next time.
Still there are some other strange behaviors unknown by us for korean letter.

RGDS
HK.Lee