.TH vga_setlogicalwidth 3 "27 July 1997" "Svgalib (>= 1.2.11)" "Svgalib User Manual"
.SH NAME
vga_setlogicalwidth \- set the logical scanline width
.SH SYNOPSIS

.B "#include <vga.h>"

.BI "void vga_setlogicalwidth(int " l );

.SH DESCRIPTION
Set the logical scanline width to
.I 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
.I l
to multiples of the value returned for that graphics mode by
.BR vga_modeinfo (3).

.SH SEE ALSO

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

.SH 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.