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comp.lang.c FAQ list · Question 19.10

Q: How can I do graphics?

A: Once upon a time, Unix had a fairly nice little set of device-independent plot functions described in plot(3) and plot(5). The GNU libplot library, written by Robert Maier, maintains the same spirit and supports many modern plot devices; see

A modern, platform-independent graphics library (which also supports 3D graphics and animation) is OpenGL. Other graphics standards which may be of interest are GKS and PHIGS.

If you're programming for MS-DOS, you'll probably want to use libraries conforming to the VESA or BGI standards.

If you're trying to talk to a particular plotter, making it draw is usually a matter of sending it the appropriate escape sequences; see also question 19.9. The vendor may supply a C-callable library, or you may be able to find one on the net.

If you're programming for a particular window system (Macintosh, X windows, Microsoft Windows), you will use its facilities; see the relevant documentation or newsgroup or FAQ list.

References: PCS Sec. 5.4 pp. 75-77

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