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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.