XkbGetKeyExplicitComponents(3) XKB FUNCTION XkbGetKeyExplicitComponents(3)
NAME
XkbGetKeyExplicitComponents - Obtain the explicit components (the ex-
plicit 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 Map-
ping 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 ar-
ray is a mask that is a bitwise inclusive OR of the values shown in Ta-
ble 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 as-
signed to the key and the sym-
bol interpretations that match
the key.
XkbGetKeyExplicitComponents sends a request to the server to obtain the
explicit components 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, XkbGetKeyExplicitCompo-
nents 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, Xk-
bGetKeyExplicitComponents allocates and initializes it before obtaining
the actions.
If the server does not have a compatible version of Xkb, or the Xkb ex-
tension has not been properly initialized, XkbGetKeyExplicitComponents
returns BadMatch. If num is less than 1 or greater than XkbMaxKeyCount,
XkbGetKeyExplicitComponents returns BadValue. If any allocation 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)
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