The Microsoft run-time library includes a set of graphics routines that offer a wide variety of graphics functions, low-level graphics primitives, font functions, and presentation graphics (displays such as graphs and pie charts).
Graphics functions are supplied in two libraries that must be explicitly linked with your program. The GRAPHICS.LIB library provides support for low-level graphics and character-font routines. The library PGCHART.LIB supports presentation-graphics routines.