Adjust Lens size/Position(repost)(repost)

I am building a magnification application in which the user has a lens which shows a magnified view. I need the ability for the user to adjust the position and size of the lens. What I'm looking for is a DLL in C++ which I can call to allow for this functionality. So for example, I'll call bool GetLensPosition(RECT *) When this function is called in your DLL, you should 1) Display a window with black border at the coordinates passed in through the RECT *. 2) Allow the user to resize the window by holding down the red squares at the borders and dragging. 3) Allow the user to change the lens position by left clicking anywhere within the window and dragging it around 4) When the user hits Esc or right clicks, return the final coordinates of the lens to me through the RECT *. In the sample screenshot, I've shown a magnified view of what's under the lens. If you can do that I'll give you a bonus, but you can just show a white background with a black border to make things easier. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Win XP/Vista, VC++6/2005