The standard
CIEuvY:u/v/Y ( .6, .6, 1)
CIExyY:x/y/Y ( .75, .85, 1)
CIELab:L/a/b (100, none, none)
CIELuv:L/u/v (100, none, none)
TekHVC:H/V/C (360, 100, 100)
All of the values (C, H, V, X, Y, Z, a, b, u, v, y, x) are
For more information on device independent color, see the Xlib reference manual.
KeyboardsThe X keyboard model is broken into two layers:
Modifier List
Some keys (such as Shift, Control, and Caps Lock) are known as modifiers and are used to select different symbols that are attached to a single key (such as
Keymap Table
Applications translate event keycodes and modifier masks into keysyms using a keysym table which contains one row for each keycode and one column for various modifier states. This table is initialized by the server to correspond to normal typewriter conventions. The exact semantics of how the table is interpreted to produce keysyms depends on the particular program, libraries, and language input method used, but the following conventions for the first four keysyms in each row are generally adhered to. The first four elements of the list are split into two groups of keysyms. Group 1 contains the first and second keysyms; Group 2 contains the third and fourth keysyms. Within each group, if the first element is alphabetic and the the second element is the special keysym NoSymbol, then the group is treated as equivalent to a group in which the first element is the lowercase letter and the second element is the uppercase letter.
Page 135 | Graphics Administration Guide for |