Command Section
gl_line(3)                    Svgalib User Manual                   gl_line(3)

       gl_line - draw a line

       #include <vgagl.h>

       void gl_line(int x1, int y1, int x2, int y2, int c);

       Draw a line from point (x1, y1) to (x2, y2) inclusively in color c.

       You should not assume that the same drawing trajectory is used when you
       exchange start and end points.

       To use this program one first sets up a mode with a regular vga_setmode
       call and vga_setpage(0), with possibly a vga_setlinearaddressing call.
       Then a call to gl_setcontextvga(mode) is made.  This makes the
       information about the mode available to gl_line.

       The pixels are placed directly into video memory using inline coded

       svgalib(7), vgagl(7), svgalib.conf(5), threedkit(7), testgl(1),
       plane(1), wrapdemo(1), gl_circle(3), gl_clearscreen(3), gl_hline(3),
       gl_setpixel(3), gl_setpixelrgb(3), gl_setcontextvga(3).

       This manual page was edited by Michael Weller <[email protected]>. The exact source of the referenced demo as well as of the
       original documentation is unknown. This page was modified by Don
       Secrest <[email protected]>.

       It is very likely that both are at least to some extent are due to Harm
       Hanemaayer <[email protected]>.

       Occasionally this might be wrong. I hereby asked to be excused by the
       original author and will happily accept any additions or corrections to
       this first version of the svgalib manual.

Svgalib (>= 1.2.11)               21 Aug 1999                       gl_line(3)
Command Section