Coding for line drawing through OpenGL

This is for OpenGL and should be compatible with Microsoft Visual Studio 6.0 I would like the code to be simple, clear, and easy to follow. There should be some comments to describe a bit of what is going on. I am in the process of trying to teach myself various aspects of OpenGL. Here is what I need: Be able to drag cursor to a point A, then press spacebar to initiate the line. Drag cursor to a point B, then press spacebar, with the end result being a line drawn from A to B. There also should be no limit to how many lines can be drawn on the screen and simple pictures should be able to be drawn. There also should be a key that can be pressed when the user is done so that all the lines can be changed to blue to signify completion of the drawing by user. ## 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 Program .cpp file must be able to compile with Microsoft Visual Studio 6.0 and exe file should run on Windows XP