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gl_putboxmask(3)	       Svgalib User Manual		gl_putboxmask(3)

NAME
     gl_putboxmask - copy a masked  pixmap to a rectangular area

SYNOPSIS
     #include <vgagl.h>

     void gl_putboxmask(int x, int y, int w, int h, void *dp);

DESCRIPTION
     Copy the contents of a memory buffer dp to a rectangular bitmap at position
     (x, y) with size (w, h).

     This  function  works  like  gl_putbox, but does not write pixmap pixels of
     color zero. If the same pixmap is used often you should consider using  the
     faster gl_putboxmaskcompiled(3).

     Pixmaps are in row-major order. The source pixmap memory has the size w * h
     * BYTESPERPIXEL.

SEE ALSO
     svgalib(7), vgagl(7), svgalib.conf(5), threedkit(7), testgl(1), gl_compile-
     boxmask(3),  gl_compiledboxmasksize(3),  gl_copybox(3),  gl_copyboxfromcon-
     text(3), gl_copyboxtocontext(3), gl_fillbox(3), gl_getbox(3), gl_putbox(3),
     gl_putboxmaskcompiled(3), gl_putboxpart(3), gl_scalebox(3).

AUTHOR
     This manual page was  edited  by  Michael	Weller	<eowmob@exp-math.uni-es-
     sen.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 orig-
     inal author and will happily accept any additions or  corrections	to  this
     first version of the svgalib manual.

Svgalib (>= 1.2.11)		   2 Aug 1997			gl_putboxmask(3)

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