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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 copyboxto-
     context(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_copy-
     boxfromcontext(3), gl_copyboxtocontext(3), gl_copyscreen(3), gl_enablepage-
     flipping(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 orig-
     inal  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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