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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 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.

Svgalib (>= 1.2.11)               2 Aug 1997             gl_setscreenoffset(3)

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