NAME

       vga_drawline - draw a line on the screen

SYNOPSIS

       #include <vga.h>

       int vga_drawline(int x1, int y1, int x2, int y2);

DESCRIPTION

       draws a line from (x1, y1) to (x2, y2) on the screen. If you exchange start and end of the
       line you should not expect the exactly identical set of pixel be covered by the line.

       This function is very inefficient as is does a bunch of vga_drawpixel(3) calls, you should
       consider  using  gl_line(3) which is very efficient, or doing direct screen access instead
       or use vga_drawscansegment(3) to handle more than one pixel.

       The color drawn is set with vga_setcolor(3) or vga_setrgbcolor(3) resp.

       The function always returns 0 (on which you should probably not really rely).

SEE ALSO

       svgalib(7),  vgagl(7),   libvga.config(5),   gl_line(3)   vga_clear(3),   vga_setcolor(3),
       vga_setrgbcolor(3),       vga_getpixel(3),      vga_drawline(3),      vga_drawscanline(3),
       vga_drawscansegment(3), vga_getscansegment(3)

AUTHOR

       This manual page was edited by Michael Weller  <eowmob@exp-math.uni-essen.de>.  The  exact
       source  of  the  referenced  function as well as of the original documentation is unknown.
       This Page was modified by Don Secrest <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.