libsdl, Graphics, Simple DirectMedia Layer (SDL) for OpenVMS From Wikipedia: Simple DirectMedia Layer (SDL) is a cross-platform multimedia library that creates an abstraction over various platforms' graphics, sound, and input APIs, allowing a developer to write a computer game or other multimedia application once and run it on GNU/Linux, Windows, Mac OS Classic, Mac OS X, BeOS, FreeBSD, OpenBSD, Solaris, QNX, IRIX, and a few other unofficially ported platforms. It manages video, events, numeric audio, CD-ROM sound, threads, and timers. For more about about libSDL: This OpenVMS port of SDL is from Alexey Chupahin, and is based at: