v7 man page for gl_getpixel

gl_getpixel(3)							Svgalib User Manual						    gl_getpixel(3)

NAME

       gl_getpixel - return the color of a pixel

SYNOPSIS

       #include <vgagl.h>

       int gl_getpixel(int x, int y);

DESCRIPTION

       Returns the color of pixel at position (x, y) in the format used in the screen memory.

       The color -1 is returned for points outside the clipping window.

SEE ALSO

       svgalib(7),  vgagl(7),  svgalib.conf(5),  threedkit(7), testgl(1), gl_getbox(3), gl_getpalette(3), gl_getpalettecolor(3), gl_getpalettecol-
       ors(3), gl_getpixelrgb(3), gl_rgbcolor(3), gl_setpalette(3), gl_setpalettecolor(3),  gl_setpalettecolors(3),  gl_setpixel(3),  gl_setpixel-
       rgb(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.

Svgalib (>;= 1.2.11)						    2 Aug 1997							    gl_getpixel(3)