title: How to Make Simple OpenGl C++ program using xcode
body: <p>I want to make a very simple open gl program using xcode. all i want is a window with a black background. I also want to create some functions that can draw lines, images and other stuff on the screen. the reason i want to make this is because i created a program on windows in c++ and i just want to port it to mac. so i just want to create a simple window that lets me draw point and line?</p>