NAME

       gl_setscreenoffset - set a memory offset for copyscreen

SYNOPSIS

       #include <vgagl.h>

       void gl_setscreenoffset(int o);

DESCRIPTION

       Set  the  offset  in  pixels  into video memory for copyscreen(3) and copyboxtocontext(3),
       copyboxfromcontext(3) and thus allows  for  page-flipping.  Must  be  a  multiple  of  the
       scanline width in bytes. It is reset to zero after the completion of copyscreen(3).

SEE ALSO

       svgalib(7),  vgagl(7), svgalib.conf(5), threedkit(7), testgl(1), gl_copyboxfromcontext(3),
       gl_copyboxtocontext(3), gl_copyscreen(3), gl_enablepageflipping(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.