Using ScrollBar in BitMap

I am reading data from a card and plotting it continuously in a Bitmap. The data outside of the bitmap area is to be viewed by the
user. Hence I would like to use scroll bar. I am using document-view architecture in multidocument interface. How to add scroll bar
to the bitmap and do the scrolling functions. My view class is derived from cscrollview and I have scroll bar control for the full
client area. But I want to view the data in the bitmap area which is not visible.

Please reply,

Thanks,

R.ANANDHI