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XkbGetKeyExplicitComponents(3) XKB FUNCTION XkbGetKeyExplicitComponents(3)
NAME
XkbGetKeyExplicitComponents - Obtain the explicit components (the explicit array) for a
subset of the keys in a keyboard description
SYNOPSIS
Status XkbGetKeyExplicitComponents (Display *dpy, unsigned int first, unsigned int num,
XkbDescPtr xkb);
ARGUMENTS
- dpy connection to server
- first
keycode of first key to fetch
- num number of keys for which to get explicit info
- xkb Xkb description in which to put results
DESCRIPTION
Whenever a client remaps the keyboard using core protocol requests, Xkb examines the map
to determine likely default values for the components that cannot be specified using the
core protocol (see Core Keyboard Mapping to Xkb Keyboard Mapping Transformation for more
information on how Xkb chooses the default values).
DO THE FOUR PAGES OF "CORE KEYBOARD MAPPING TO XKB KEYBOARD MAPPING TRANSFORMATION" NEED
TO BE ADDED HERE?
This automatic remapping might replace definitions explicitly requested by an application,
so the Xkb keyboard description defines an explicit components mask for each key. Any
aspects of the automatic remapping listed in the explicit components mask for a key are
not changed by the automatic keyboard mapping.
The explicit components masks are held in the explicit field of the server map, which is
an array indexed by keycode. Each entry in this array is a mask that is a bitwise inclu-
sive OR of the values shown in Table 1.
Table 1 Explicit Component Masks
---------------------------------------------------------------
Bit in Explicit Mask Value Protects Against
---------------------------------------------------------------
ExplicitKeyType1 (1<<0) Automatic determination of the
key type associated with
Group1.
ExplicitKeyType2 (1<<1) Automatic determination of the
key type associated with
Group2.
ExplicitKeyType3 (1<<2) Automatic determination of the
key type associated with
Group3.
ExplicitKeyType4 (1<<3) Automatic determination of the
key type associated with
Group4.
ExplicitInterpret (1<<4) Application of any of the
fields of a symbol interpreta-
tion to the key in question.
ExplicitAutoRepeat (1<<5) Automatic determination of
auto-repeat status for the
key, as specified in a symbol
interpretation.
ExplicitBehavior (1<<6) Automatic assignment of the
XkbKB_Lock behavior to the
key, if the XkbSI_LockingKey
flag is set in a symbol inter-
pretation.
ExplicitVModMap (1<<7) Automatic determination of the
virtual modifier map for the
key based on the actions
assigned to the key and the
symbol interpretations that
match the key.
XkbGetKeyExplicitComponents sends a request to the server to obtain the explicit compo-
nents for num keys on the keyboard starting with key first. It waits for a reply and
returns the explicit components in the server->explicit array of xkb. If successful,
XkbGetKeyExplicitComponents returns Success. The xkb parameter must be a pointer to a
valid Xkb keyboard description.
If the server map in the xkb parameter has not been allocated, XkbGetKeyExplicitComponents
allocates and initializes it before obtaining the actions.
If the server does not have a compatible version of Xkb, or the Xkb extension has not been
properly initialized, XkbGetKeyExplicitComponents returns BadMatch. If num is less than 1
or greater than XkbMaxKeyCount, XkbGetKeyExplicitComponents returns BadValue. If any allo-
cation errors occur, XkbGetKeyExplicitComponents returns BadAlloc.
DIAGNOSTICS
BadAlloc Unable to allocate storage
BadMatch A compatible version of Xkb was not available in the server or an argument
has correct type and range, but is otherwise invalid
BadValue An argument is out of range
X v11 Rel. 6.4 20 Jul 1999 XkbGetKeyExplicitComponents(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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