NAME    [Toc]    [Back]

       xcmsdb - Device Color Characterization utility for X Color
       Management System

SYNOPSIS    [Toc]    [Back]

       xcmsdb [-query] [-remove] [-format 32 | 16 | 8] [filename]

OPTIONS    [Toc]    [Back]

       xcmsdb  program accepts the following options: This option
       attempts to read the XDCCC  properties  off  the  screen's
       root  window. If successful, it transforms the data into a
       more readable format, then sends the data to standard out.
       This option attempts to remove the XDCCC properties on the
       screen's root window.  Specifies the property format  (32,
       16,  or 8 bits per entry) for the XDCCC_LINEAR_RGB_CORRECTION
 property. Precision of encoded floating point  values
       increases with the increase in bits per entry. The default
       is 32 bits per entry.

DESCRIPTION    [Toc]    [Back]

       xcmsdb is used to load,  query,  or  remove  Device  Color
       Characterization  data  stored  in  properties on the root
       window of the screen as specified  in  section  7,  Device
       Color Characterization, of the ICCCM. Device Color Characterization
 data (also called the  Device  Profile)  is  an
       integral  part of Xlib's X Color Management System (Xcms),
       necessary for proper  conversion  of  color  specification
       between  device-independent  and  device-dependent  forms.
       Xcms  uses  3x3  matrices   stored   in   the   XDCCC_LINEAR_RGB_MATRICES
  property to convert color specifications
       between CIEXYZ and RGB Intensity (XcmsRGBi, also  referred
       to  as  linear RGB). Xcms then uses display gamma information
 stored in the XDCCC_LINEAR_RGB_CORRECTION property to
       convert  color  specifications between RGBi and RGB device
       (XcmsRGB, also referred to as device RGB).

       Note that Xcms allows clients to register function sets in
       addition  to its built-in function set for CRT color monitors.
  Additional function sets  may  store  their  device
       profile  information  in  other properties in function set
       specific format. This utility is  unaware  of  these  nonstandard
 properties.

       The  ASCII  readable contents of filename (or the standard
       input if no input file is given) are appropriately  transformed
  for  storage in properties, provided the -query or
       -remove options are not specified.

ENVIRONMENT    [Toc]    [Back]

       to figure out which display and screen to use.

SEE ALSO    [Toc]    [Back]

       xprop(1X)

AUTHOR    [Toc]    [Back]

       Chuck Adams, Tektronix Inc.; Al  Tabayoyon,  SynChromatics
       Inc. (added multi-visual support)



                                                       xcmsdb(1X)