Handwriting capture in pocket IE

Does anyone know whether it would be possible to capture a signature with flash in pocketIE?
By signature capture, it doesn't need to extend beyond capturing an image, there are no fancy authentication bits etc. This is what I want to achieve:

User writes on portion of screen embedded in webpage.
User clicks a 'submit' button.
Image of signature is saved and sent to DB.(I use php)

So, A:how do I create a 'drawable area' in flash?
and B: Can it save as a printscreen?

Thanks
I wait in hope for your responses :)

U may not be able to do the printscreen kinda stuf but there is a workaround for this

I am not gonna give u the solution for drawing area but the logic for capturing sign

Usually what we do while drawing is on the press of a mouse button we stores its starting points, go on drawing lines on each mouse move and update the line starting position.

Well what u can do is before updating this starting pos u should store line start and end pos in array. and when user submits the resul we collect all the elements from that array and make a string out of it. Then u can pass this particular string to Ur php page to store.

And while retriving this sign u get the same data on which u draw the signature.

Actually on PPC this solution works faster than uploading and downloading images.

But to use this solution ur PPC shoul support atleast Flash 6 (For drawing APIs)