Basic and Advance C Question:

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How can I do graphics in C?

C Programming Interview Question
C Programming Interview Question

Answer:

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 http://www.gnu.org/software/plotutils/plotutils.html.
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.
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; 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;

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