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mapcolor(3)  —  Silicon Graphics R1c

NAME

mapcolor - change a color map entry

SYNOPSIS

C
mapcolor(color, red, green, blue)
Colorindex color;
RGBvalue red, green, blue;

FORTRAN
subroutine mapcol(color, red, green, blue)
integer*2 color, red, green, blue

Pascal
procedure mapcolor(color: Colorindex; red, green, blue: RGBvalue);

DESCRIPTION

Mapcolor changes a single color map entry to the specified RGB value.  Its arguments are a color map index and eight bits each of red, green, and blue intensities.  Pixels written with color color will be displayed with the specified RGB intensities.  Color map entries which remain accessible are invariant with respect to display and color map mode changes. 

In multimap mode only the currently selected color map can be updated with mapcolor.  Invalid indices are ignored. 

SEE ALSO

multimap, onemap, setmap, setplanes

NOTE

This command can only be used in immediate mode. 

Version 2.3  —  July 04, 1985

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026