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gl_setdisplaystart(3)	       Svgalib User Manual	   gl_setdisplaystart(3)

NAME
     gl_setdisplaystart - set the start of the screen are displayed

SYNOPSIS
     #include <vgagl.h>

     vga gl_setdisplaystart(int x, int y);

DESCRIPTION
     Set the physical display start address to the pixel at (x, y).

     Can  be  used  for  hardware scrolling, or for page flipping (e.g.  setdis-
     playstart(0, HEIGHT) displays from the second page). Make sure the scanline
     width (BYTEWIDTH) in bytes of the	current  context  corresponds  with  the
     physical screen.

     Note  also  that  the  display  start cannot be set to completely arbitrary
     points, see vga_setdisplaystart(3).

SEE ALSO
     svgalib(7), vgagl(7), svgalib.conf(5), threedkit(7), testgl(1), vga_setdis-
     playstart(3), gl_copyscreen(3), gl_setscreenoffset(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_setdisplaystart(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=gl_setdisplaystart&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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