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
pixels 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 virtual 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_modeinfo(3).
SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), vga_modeinfo(3),
vga_setlogicalwidth(3), vga_claimvideomemory(3)
AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-
essen.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
original author and will happily accept any additions or corrections to
this first version of the svgalib manual.