How to capture key press events in VS code editor? (VS 2005- C#)

Hi,

I am developing an add-in VS 2005 using C# (without SDK).
I am able to capture the line change event with the help of TextEditorEvents .

There is no event under TextEditorEvents to capture key press.

How can i capture a keypress event ( want to capture the arrow keys) in the Visual Studio code editor? should i have to install SDK for this or can do it without SDK also?

(preferably want to do this without installing SDK)

Thanks,
Nayana