int vga_drawline(int x1, int y1, int x2, int y2);
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).
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)
This manual page was edited by Michael Weller <email@example.com>. The exact source of the referenced function as well as of the original documentation is unknown. This Page was modified by Don Secrest <firstname.lastname@example.org>
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.