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gl_line(3)		      Svgalib User Manual		    gl_line(3)

NAME
       gl_line - draw a	line

SYNOPSIS
       #include	<vgagl.h>

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

DESCRIPTION
       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 informa-
       tion about the mode available to	gl_line.

       The pixels are placed directly into video  memory  using	 inline	 coded
       commands.

SEE ALSO
       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).

AUTHOR
       This  manual page was edited by Michael Weller <eowmob@exp-math.uni-es-
       sen.de>.	The exact source of the	referenced demo	 as  well  as  of  the
       original	 documentation	is  unknown. This page was modified by Don Se-
       crest <secrest@uiuc.edu>.

       It is very likely that both are at least	to some	extent are due to Harm
       Hanemaayer <H.Hanemaayer@inter.nl.net>.

       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)

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