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bg_test(6)		      Svgalib User Manual		    bg_test(6)

       bg_test - test the background mode of svgalib

       bg_test [linear]

       Tests the enhanced support of recent svgalibs to	draw while switched to
       the background. Draws a small centered white box	then waits  until  you
       switch  to another vc. Draws some outer box frame around	it while back-
       ground, which you can see when you switch back to it. For obvious  rea-
       sons,  your  version  of	 svgalib  must have BACKGROUND support enabled
       (which is the default as	of this	writing).  When	 finished,  press  any
       key to end bg_test.

       The  demo  uses a G320x200x256 mode or the one you set with SVGALIB_DE-

       If you specify the linear parameter the	demo  will  use	 vgagl(7)  and
       vga_setlinearaddressing(3) to test linear mode in background.

       This  demo  is part of svgalib and can be found in the demos/ subdirec-
       tory 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  at
       /pub/Linux/libs/graphics	and at  /pub/linux/sources/libs
       which will most probably	be mirrored by a site close to you.

       svgalib(7),    vgagl(7),	   libvga.config(5),   vga_runinbackground(3),
       threed(6), accel(6),  eventtest(6),  forktest(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)

       This manual page	was edited by Michael Weller  <eowmob@exp-math.uni-es->.	 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 <>.

       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			    bg_test(6)


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