1gl_getpixel(3) Svgalib User Manual gl_getpixel(3)
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6 gl_getpixel - return the color of a pixel
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10 #include <vgagl.h>
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12 int gl_getpixel(int x, int y);
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16 Returns the color of pixel at position (x, y) in the format used in the
17 screen memory.
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19 The color -1 is returned for points outside the clipping window.
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23 svgalib(7), vgagl(7), svgalib.conf(5), threedkit(7), testgl(1), gl_get‐
24 box(3), gl_getpalette(3), gl_getpalettecolor(3), gl_getpalettecol‐
25 ors(3), gl_getpixelrgb(3), gl_rgbcolor(3), gl_setpalette(3), gl_set‐
26 palettecolor(3), gl_setpalettecolors(3), gl_setpixel(3), gl_setpixel‐
27 rgb(3).
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31 This manual page was edited by Michael Weller <eowmob@exp-math.uni-
32 essen.de>. The exact source of the referenced demo as well as of the
33 original documentation is unknown.
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35 It is very likely that both are at least to some extent are due to Harm
36 Hanemaayer <H.Hanemaayer@inter.nl.net>.
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38 Occasionally this might be wrong. I hereby asked to be excused by the
39 original author and will happily accept any additions or corrections to
40 this first version of the svgalib manual.
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44Svgalib (>= 1.2.11) 2 Aug 1997 gl_getpixel(3)