.TH mapcolor  3 "R1c" "Silicon Graphics"
.SH NAME 
.I mapcolor
- change a color map entry
.SH SYNOPSIS
.nf
.TP \w'FORTRAN\ \ \ 'u
C
.B "mapcolor(color, red, green, blue) "
.B "Colorindex color; "
.B "RGBvalue red, green, blue;"
.IP 
.TP \w'FORTRAN\ \ \ 'u
FORTRAN
.B "subroutine mapcol(color, red, green, blue)"
.B "integer*2 color, red, green, blue"
.IP 
.TP \w'FORTRAN\ \ \ 'u
Pascal
.B "procedure mapcolor(color: Colorindex; red, green, blue: RGBvalue);"
.sp
.SH DESCRIPTION
\f2Mapcolor\f1 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 \f3color\f1 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 \f2mapcolor\f1.  Invalid indices are ignored.
.SH "SEE ALSO"
.I multimap, onemap, setmap, setplanes

.SH NOTE
This command can only be used in immediate mode.