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- XCMSDB(1) XCMSDB(1)
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- NNAAMMEE
- xcmsdb - Device Color Characterization utility for X Color
- Management System
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- SSYYNNOOPPSSIISS
- xxccmmssddbb [ --qquueerryy ] [ --rreemmoovvee ] [ --ffoorrmmaatt 3322|1166|88 ] [ _f_i_l_e_-
- _n_a_m_e ]
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- DDEESSCCRRIIPPTTIIOONN
- _x_c_m_s_d_b 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 Char-
- acterization 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 speci-
- fications 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).
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- Note that Xcms allows clients to register _f_u_n_c_t_i_o_n _s_e_t_s in
- addition to its built-in function set for CRT color moni-
- tors. 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.
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- The ASCII readable contents of _f_i_l_e_n_a_m_e (or the standard
- input if no input file is given) are appropriately trans-
- formed for storage in properties, provided the --qquueerryy or
- --rreemmoovvee options are not specified.
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- OOPPTTIIOONNSS
- _x_c_m_s_d_b program accepts the following options:
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- --qquueerryy 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.
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- --rreemmoovvee This option attempts to remove the XDCCC proper-
- ties on the screen's root window.
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- --ffoorrmmaatt 3322|1166|88
- 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.
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- X Version 11 Release 6.1 1
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- XCMSDB(1) XCMSDB(1)
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- SSEEEE AALLSSOO
- xprop(1), Xlib documentation
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- EENNVVIIRROONNMMEENNTT
- DDIISSPPLLAAYY to figure out which display and screen to use.
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- AAUUTTHHOORR
- Chuck Adams, Tektronix Inc. Al Tabayoyon, SynChromatics
- Inc. (added multi-visual support)
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- X Version 11 Release 6.1 2
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