XkbGetNamedGeometry(3) XKB FUNCTIONS XkbGetNamedGeometry(3)
NAME
XkbGetNamedGeometry - Loads a keyboard geometry description from this
database by name
SYNOPSIS
Status XkbGetNamedGeometry (Display *dpy, XkbDescPtr xkb, Atom name);
ARGUMENTS
dpy connection to the X server
xkb keyboard description into which the geometry should be loaded
name name of the geometry to be loaded
DESCRIPTION
It is also possible to load a keyboard geometry by name. The X server
maintains a database of keyboard components (see below).
XkbGetNamedGeometry can return BadName if the name cannot be found.
The X server maintains a database of keyboard components, identified by
component type. The database contains all the information necessary to
build a complete keyboard description for a particular device, as well
as to assemble partial descriptions. Table 1 identifies the component
types and the type of information they contain.
Table 1 Server Database Keyboard Components
──────────────────────────────────────────────────────────────────
Component Component Primary Contents May also contain
Type
──────────────────────────────────────────────────────────────────
Keymap Complete keyboard descrip-
tion
Normally assembled using a
complete component from
each of the other types
Keycodes Symbolic name for each key Aliases for some
Minimum and maximum legal keys
keycodes Symbolic names for
indicators
Description of indi-
cators physically
present
Types Key types Real modifier bind-
ings and symbolic
names for some vir-
tual modifiers
Compatibility Rules used to assign ac- Maps for some indi-
tions to keysyms cators
Real modifier bind-
ings and symbolic
names for some vir-
tual modifiers
Symbols Symbol mapping for key- Explicit actions and
board keys behaviors for some
Modifier mapping keys
Symbolic names for groups Real modifier bind-
ings and symbolic
names for some vir-
tual modifiers
Geometry Layout of the keyboard Aliases for some
keys; overrides key-
codes component
aliases
Symbolic names for
some indicators
Description of indi-
cators physically
present
While a keymap is a database entry for a complete keyboard description,
and therefore logically different from the individual component database
entries, the rules for processing keymap entries are identical to those
for the individual components. In the discussion that follows, the term
component is used to refer to either individual components or a keymap.
There may be multiple entries for each of the component types. An entry
may be either complete or partial. Partial entries describe only a
piece of the corresponding keyboard component and are designed to be
combined with other entries of the same type to form a complete entry.
For example, a partial symbols map might describe the differences be-
tween a common ASCII keyboard and some national layout. Such a partial
map is not useful on its own because it does not include those symbols
that are the same on both the ASCII and national layouts (such as func-
tion keys). On the other hand, this partial map can be used to configure
any ASCII keyboard to use a national layout.
When a keyboard description is built, the components are processed in
the order in which they appear in Table 1; later definitions override
earlier ones.
DIAGNOSTICS
BadName A font or color of the specified name does not exist.
X Version 11 libX11 1.8.12 XkbGetNamedGeometry(3)
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