Man

Command Section
vga_setlogicalwidth(3)        Svgalib User Manual       vga_setlogicalwidth(3)

NAME
       vga_setlogicalwidth - set the logical scanline width

SYNOPSIS
       #include <vga.h>

       void vga_setlogicalwidth(int l);

DESCRIPTION
       Set the logical scanline width to l bytes. It must be a multiple of 8.
       Only changes the VGA register, drawing functions don't take it into
       account. The logical scan line width is the offset between points above
       each other in consecutive lines. Note that for some cards and graphics
       modes a multiple of 8 will not suffice to ensure a proper video timing.
       You should only set l to multiples of the value returned for that
       graphics mode by vga_modeinfo(3).

SEE ALSO
       svgalib(7), vgagl(7), libvga.config(5), vga_modeinfo(3),
       vga_displaystart(3), vga_claimvideomemory(3)

AUTHOR
       This manual page was edited by Michael Weller <[email protected]
       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 <[email protected]>.

       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.

Svgalib (>= 1.2.11)              27 July 1997           vga_setlogicalwidth(3)
Command Section