Tablet Pc Help required

Hi All,
I am new to tablet pc development. My working enviorment is Windows 2003
with Tablet PC SDK 1.5 installed and C#. I am designing a control for
tablet pc. I am using a panel for pen Input. Now when user is writing
(Using Pen) and is near the end of panel I want to increase panel's height
so that user can have more area to write on.Please provide Suggestions.
Thanx
Munish