typing an sms

Question

Hi,
I tried a lot for  "typing an sms" as we do in mobile phone using delegate and events where button keypress will happen 3 or 4 times. for example, if we press button '9', we get 'w', and if we press the same button continuously for 2 times, we get 'x' and so on... .     This is to be done in windows application. I want to raise an event every time I press a button. I am not able to get it.
   Please help me......