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xcmsdb(1X)
X11R6
NAME
  xcmsdb - Device Color Characterization utility for X Color Management
  System

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

OPTIONS
  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 out.

  -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.

DESCRIPTION
  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 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 properties,
  provided the -query or -remove options are not specified.

ENVIRONMENT
  DISPLAY to figure out which display and screen to use.

SEE ALSO
  xprop(1X)

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

Index for Section 1X

Alphabetical listing for X

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