gl_setscreenoffset(3)  Svgalib User Manual  gl_setscreenoffset(3)

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 copy-
       screen(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(5),   threedkit(7),
       testgl(1),   gl_copyboxfromcontext(3),    gl_copyboxtocon-
       text(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.

Svgalib (>= 1.2.11)         2 Aug 1997                          1