62 lines
1.6 KiB
Groff
62 lines
1.6 KiB
Groff
.TH gl_getpalettecolor 3 "2 Aug 1997" "Svgalib (>= 1.2.11)" "Svgalib User Manual"
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.SH NAME
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gl_getpalettecolor, gl_getpalettecolors, gl_getpalette \- read the color palette
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.SH SYNOPSIS
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.B #include <vgagl.h>
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.BI "void gl_getpalettecolor(int " c ", int *" r ", int *" g ", int *" b );
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.br
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.BI "void gl_getpalettecolors(int " s ", int " n ", void *" dp );
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.br
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.BI "void gl_getpalette(void *" dp );
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.SH DESCRIPTION
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.B gl_getpalettecolor
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gets red, green and blue values (in the range 0 - 63) of
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color
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.I c
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from the color-lookup-table, and stores
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them as integers in the memory locations pointed to by
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.IR r ", " g " and " b .
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.B gl_getpalettecolors
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gets RGB values of
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.I n
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colors starting at
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.IR s ,
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which are stored
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as a table of groups of three bytes each at
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.IR dp .
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.B gl_getpalette
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is equivalent to
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.BR "getpalettecolors(0, 256, " dp ).
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.BR vga_ext_set (3)
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might change the range of the colors returned to 0 - 255.
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.SH SEE ALSO
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.BR svgalib (7),
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.BR vgagl (7),
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.BR svgalib.conf (5),
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.BR threedkit (7),
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.BR testgl (1),
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.BR vga_ext_set (3),
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.BR gl_setpalette (3),
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.BR gl_setpalettecolor (3),
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.BR gl_setpalettecolors (3).
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.SH AUTHOR
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This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The
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exact source of the referenced demo as well as of the original documentation is
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unknown.
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It is very likely that both are at least to some extent are due to
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Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.
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Occasionally this might be wrong. I hereby
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asked to be excused by the original author and will happily accept any additions or corrections
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to this first version of the svgalib manual.
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