Man

Command Section
forktest(6)                   Svgalib User Manual                  forktest(6)

NAME
       forktest - tests the vga_safety_fork() function.

SYNOPSIS
       forktest

DESCRIPTION
       This is a copy of the keytest(6) demo (look there). However, it uses
       vga_safety_fork(3) to start a background process to restore the console
       in case the fore ground process crashes. It removes all automatic
       restore functions of svgalib. Thus, in case you kill this program with
       kill(1) or <Ctrl>-C, only the background process will save your system
       from being hosed up.

       You can set a videomode to use by setting the environment variable
       SVGALIB_DEFAULT_MODE to a number (see vgatest for a list) or a string
       like G0x1x2 where you replace 0 with desired x resolution, 1 with the
       desired y rez, and 2 with the desired number of colors (2, 16, 256,
       32K, 64K, 16M, 16M4). Again, only certain choices are available, see
       vgatest for a list.

       In case nothing is selected, G320x200x256 is choosen.

       This demo is part of svgalib and can be found in the demos/
       subdirectory of the original svgalib distribution. However, it is not
       installed in the system by default, s.t. it is unclear where you can
       find it if your svgalib was installed by some linux distribution. Even
       then, when you have the demo on your system, you probably won't have
       the sources s.t. it is only of limited use for you.

       In case of any such problem, simply get an svgalib distribution from
       the net. You even don't need to install it. Just make in the demos/
       subdirecty. As of this writing, svgalib-1.2.12.tar.gz is the latest
       version and can be retrieved by ftp from sunsite.unc.edu at
       /pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
       which will most probably be mirrored by a site close to you.

SEE ALSO
       svgalib(7), vgagl(7), libvga.config(5), vga_safety_fork(3), threed(6),
       accel(6), bg_test(6), eventtest(6), fun(6), keytest(6), mousetest(6),
       scrolltest(6), speedtest(6), spin(6), testaccel(6), testgl(6),
       testlinear(6), vgatest(6), plane(6), wrapdemo(6)

AUTHOR
       This manual page was edited by Michael Weller <[email protected]
       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 <[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 1.3.0                    8 April 1998                      forktest(6)
Command Section