Computer Science
gl_setcontextvga(3) Svgalib User Manual gl_setcontextvga(3)
NAME
gl_setcontextvga - set the context to the physical screen
SYNOPSIS
#include <vgagl.h>
int gl_setcontextvga(int mode);
DESCRIPTION
Set the graphics context to the physical screen of a vga
mode (as defined in vga_setmode(3)). The mode must be set
with vga_setmode(3) prior to using any of the drawing
functions. vgagl does not take care of that.
The function returns 0 for success and non-zero if the
mode is not supported by the hardware.
The only thing you can do with a planar (mode X-like) 256
color mode is aligned gl_putbox, and use it as a target
for gl_copyscreen.
SEE ALSO
svgalib(7), vgagl(7), svgalib(5), threedkit(7),
testgl(1), currentcontext(3), gl_allocatecontext(3),
gl_copyboxfromcontext(3), gl_copyboxtocontext(3), gl_copy-
screen(3), gl_freecontext(3), gl_getcontext(3), gl_setcon-
text(3), gl_setcontextheight(3), gl_setcontextvgavir-
tual(3), gl_setcontextvirtual(3), gl_setcontextwidth(3).
AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-
math.uni-essen.de>. The exact source of the referenced
demo as well as of the original documentation is unknown.
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) 2 Aug 1997 1
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