hardware interface

Question

hi all, i have a problem here and i hope to have a solution: i am working on an online handwriting recognition project. its idea that a user should have a pen-tablet and write on it his text, my program should recognize what the user writes. the problem that i have is that i don't know how to catch the events of the tablet and how to retreive the information from it. on the mouse for example we have an event (onMouseDown) and in this event we can retreive the X and Y position of the mouse pointer and other information. i want for the tablet to catch the event of putting the pen on the tablet and i want to get all the information that are available with this event such as the pressure of the pen and the X,Y position of the pen pointer. does any body know how to do this with C#???? help me please :( thanks,