NAME
cmap_alloc - allocate default colormaps for non-default
visuals
SYNOPSIS
cmap_alloc [ -display display:n.screen ] [ -force ] [
-allscreens ]
[ -depth n ] [ -visual class ] [ -verbose ] [ -help ]
DESCRIPTION
cmap_alloc creates empty colormaps for non-default dynamic
visuals that are suitable for use as default colormaps. An
X11 server has only one default colormap, and it is associ-
ated with the default visual. Clients that need to access
non-default visuals have to create their own colormaps.
This can lead to gratuitous colormap flashing if a lot of
applications are running in non-default visuals. cmap_alloc
will create colormaps that can be used by such applications
as the default colormap for the given visual. Once the
colormap has been created for a given visual, it will place
the colormap's XID into the RGB_DEFAULT_MAP property on the
root window of the display. Clients that need to access
non-default dynamic visuals should search this property
using XGetRBGColormaps() for a suitable colormap to use.
OPTIONS
-display display:n.screen
Indicates which X11 server to use. The default is
to use the value set in the DISPLAY environment
variable.
-force Create a colormap even if a suitable colormap is
already listed in the RGB_DEFAULT_MAP property.
-allscreens
Create default colormaps for all screens of the
display. Without this option, colormaps will only
be created for the default screen.
-depth n Create default colormaps only for those visuals
that have depth n. The default is to create color-
maps for visuals of all depths
-visual class
Create default colormaps only for those visuals
that are of class class. Where class is one of the
following: GrayScale, PsuedoColor, DirectColor
-verbose Print out diagnostic messages useful for debug-
ging.
-help Print out a short usage message and exit.
SEE ALSO
xstdcmap(1), cmap_compact(1)
DIAGNOSTICS
can't open display ...
Error in connecting to the X11 server.
Check DISPLAY environment variable.
unknown depth Invalid depth specified for the -depth
command line option
unknown visual class
Invalid visual class specified for the
-visual command line option
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