.TH xcmap 1X
.SH NAME
xcmap \- displays the default colormap on X11 displays
.SH SYNTAX
\fBxcmap\fP [ [-d] \fIdisplay\fP] [ [-g] \fIgeometry\fP]
.SH DESCRIPTION
\fBxcmap\fP is an X11 program that displays the contents of the colormap
on 4-, 6-, and 8-bit color (or greyscale) displays.  It displays a grid 
of squares, (4x4, 8x8, or 16x16 grid, depending on the number of planes)
that correspond to entries in the colormap.  The squares are (of course)
drawn in their corresponding color.
.PP
You may click (with the left button) on any of these squares.  Doing so
will display the pixel number corresponding to that square, and its red,
green, and blue components (0 - 65535).  It will continue to do
this as long as you hold the button down.
.PP
Note:  This program points out a bug in the X11R2 server for the IBM RT
Megapel display.  Essentially, the problem is a discrepancy between what the 
server THINKS the colormap is, and what the colormap in the hardware 
ACTUALLY is.
.PP
.SH AUTHOR
John Bradley  -  bradley@cis.upenn.edu