trusty (3) gl_setscreenoffset.3.gz

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.