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vga_setdisplaystart(3)	       Svgalib User Manual	  vga_setdisplaystart(3)

NAME
     vga_setdisplaystart - set the display start address

SYNOPSIS
     #include <vga.h>

     void vga_setdisplaystart(int a);

DESCRIPTION
     Set the display start address to a, where the address is the number of pix-
     els  offset  from	the  start of video memory, except for hicolor/truecolor
     modes, which use a unit of 1 byte. Can be used for page-flipping  and  vir-
     tual desktop scrolling. May not work properly for 16 color modes.

     You  should  ensure  that the memory displayed is actually available on the
     SVGA card (query memory size with vga_modeinfo(3)) and ensure  that  it  is
     saved by svgalib during console switches with vga_claimvideomemory(3).

     You may only set the bits of the display start address returned by vga_mod-
     einfo(3).

SEE ALSO
     svgalib(7),  vgagl(7),  libvga.config(5),	vga_modeinfo(3), vga_setlogical-
     width(3), vga_claimvideomemory(3)

AUTHOR
     This manual page was  edited  by  Michael	Weller	<eowmob@exp-math.uni-es-
     sen.de>.  The  exact  source  of  the referenced function 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)		  27 July 1997		  vga_setdisplaystart(3)

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