I've skimmed the archives and searched the net but this question seems not to have been asked. Ones addressed in the forums appear to be OS specific.
I only need three or four colors: blue, red, yellow, and if possible green.
I'm trying to support all systems by sticking strictly to C++ basic libraries that come with the free MS Visual Studio IDE and will run code developed there on other compilers in hopes of preserving the portability of the code.