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gl_setcontextvgavirtual(3)    Svgalib User Manual   gl_setcontextvgavirtual(3)

NAME
       gl_setcontextvgavirtual - set the context to a virtual mode

SYNOPSIS
       #include	<vgagl.h>

       int gl_setcontextvgavirtual(int mode);

DESCRIPTION
       Allocate	 a  virtual  screen in system memory identical to the graphics
       mode (as	defined	in vga_setmode(3)), and	make that the current graphics
       context.

       The function returns 0 for success and non-zero if the mode is not sup-
       ported 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.conf(5),	 threedkit(7), testgl(1), cur-
       rentcontext(3),	  gl_allocatecontext(3),     gl_copyboxfromcontext(3),
       gl_copyboxtocontext(3), gl_copyscreen(3), gl_freecontext(3), gl_getcon-
       text(3),	gl_setcontext(3), gl_setcontextheight(3), gl_setcontextvga(3),
       gl_setcontextvirtual(3),	gl_setcontextwidth(3).

AUTHOR
       This  manual page was edited by Michael Weller <eowmob@exp-math.uni-es-
       sen.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	    gl_setcontextvgavirtual(3)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR

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