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XCMSDB(1)		    General Commands Manual		     XCMSDB(1)

       xcmsdb  -  Device Color Characterization	utility	for X Color Management

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

       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 in-
       tegral 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  XD-
       CCC_LINEAR_RGB_MATRICES	property  to  convert color specifications be-
       tween CIEXYZ and	RGB Intensity (XcmsRGBi, also referred	to  as	linear
       RGB).   Xcms  then  uses	 display  gamma	 information stored in the XD-
       CCC_LINEAR_RGB_CORRECTION property to convert color specifications  be-
       tween 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  non-
       standard	properties.

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

       xcmsdb program accepts the following options:

       -query  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

       -remove This option attempts to remove  the  XDCCC  properties  on  the
	       screen's	root window.

       -format 32|16|8
	       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.

       xprop(1), Xlib documentation

       DISPLAY to figure out which display and screen to use.

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

X Version 11			 xcmsdb	1.0.4			     XCMSDB(1)


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