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       gl_putboxmask - copy a masked  pixmap to a rectangular area


       #include <vgagl.h>

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


       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.


       svgalib(7),   vgagl(7),   svgalib.conf(5),   threedkit(7),   testgl(1),
       gl_compileboxmask(3),     gl_compiledboxmasksize(3),     gl_copybox(3),
       gl_copyboxfromcontext(3),     gl_copyboxtocontext(3),    gl_fillbox(3),
       gl_getbox(3), gl_putbox(3), gl_putboxmaskcompiled(3), gl_putboxpart(3),


       This  manual  page  was  edited by Michael Weller <eowmob@exp-math.uni->. 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 <>.

       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.