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.
setdisplaystart(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_setdisplaystart(3),
gl_copyscreen(3),
gl_setscreenoffset(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.
