XkbGetUpdatedMap(3)
NAME
XkbGetUpdatedMap - Update the client or server map information in an existing keyboard description
SYNOPSIS
Status XkbGetUpdatedMap (Display *display, unsigned int which,
XkbDescPtr xkb);
ARGUMENTS
- display
connection to X server
- which
mask selecting subcomponents to populate
- xkb keyboard description to be updated
DESCRIPTION
The which parameter is a bitwise inclusive OR of the masks in Table 1.
If the needed components of the xkb structure are not already
allocated, XkbGetUpdatedMap allocates them. XkbGetUpdatedMap fetches
the requested information for the device specified in the XkbDescRec
passed in the xkb parameter.
Table 1 Xkb Mapping Component Masks
and Convenience Functions
Mask Value Map Fields Convenience
Functions
XkbKeyTypesMask (1<<0) client types XkbGetKeyTypes
size_types XkbResizeKeyType
num_types XkbCopyKeyType
XkbCopyKeyTypes
XkbKeySymsMask (1<<1) client syms XkbGetKeySyms
size_syms XkbResizeKeySyms
num_syms XkbChangeTypesOfKey
key_sym_map
XkbModifierMapMask (1<<2) client modmap XkbGetKeyModifierMap
XkbExplicitComponentsMask (1<<3) server explicit XkbGetKeyExplicitComponents
XkbKeyActionsMask (1<<4) server key_acts XkbGetKeyActions
acts XkbResizeKeyActions
num_acts
size_acts
XkbKeyBehaviorsMask (1<<5) server behaviors XkbGetKeyBehaviors
XkbVirtualModsMask (1<<6) server vmods XkbGetVirtualMods
XkbVirtualModMapMask (1<<7) server vmodmap XkbGetVirtualModMap
XkbGetUpdatedMap is synchronous; it queries the server for the desired
information, waits for a reply, and then returns. If successful,
XkbGetUpdatedMap returns Success. If unsuccessful, XkbGetUpdatedMap
returns one of the following: BadAlloc (unable to allocate a component
in the XkbDescRec structure), BadValue (some mask bits in which are
undefined), BadImplementation (a compatible version of the Xkb
extension is not available in the server or the reply from the server
was invalid).
RETURN VALUES
Success The XkbGetUpdatedMap function returns Success if a reply
is received to the server query for the desired
information.
STRUCTURES
The complete description of an Xkb keyboard is given by an XkbDescRec.
The component structures in the XkbDescRec represent the major Xkb
components.
typedef struct {
struct _XDisplay * display; / connection to X server */
unsigned short flags; / private to Xkb, do not modify */
unsigned short device_spec; / device of interest */
KeyCode min_key_code; / minimum keycode for device */
KeyCode max_key_code; / maximum keycode for device */
XkbControlsPtr ctrls; / controls */
XkbServerMapPtr server; / server keymap */
XkbClientMapPtr map; / client keymap */
XkbIndicatorPtr indicators; / indicator map */
XkbNamesPtr names; / names for all components */
XkbCompatMapPtr compat; / compatibility map */
XkbGeometryPtr geom; / physical geometry of keyboard */
} XkbDescRec, *XkbDescPtr;
The display field points to an X display structure. The flags field is
private to the library: modifying flags may yield unpredictable
results. The device_spec field specifies the device identifier of the
keyboard input device, or XkbUseCoreKeyboard, which specifies the core
keyboard device. The min_key_code and max_key_code fields specify the
least and greatest keycode that can be returned by the keyboard.
Each structure component has a corresponding mask bit that is used in
function calls to indicate that the structure should be manipulated in
some manner, such as allocating it or freeing it. These masks and their
relationships to the fields in the XkbDescRec are shown in Table 2.
Table 2 Mask Bits for XkbDescRec
Mask Bit XkbDescRec Field Value
XkbControlsMask ctrls (1L<<0)
XkbServerMapMask server (1L<<1)
XkbIClientMapMask map (1L<<2)
XkbIndicatorMapMask indicators (1L<<3)
XkbNamesMask names (1L<<4)
XkbCompatMapMask compat (1L<<5)
XkbGeometryMask geom (1L<<6)
XkbAllComponentsMask All Fields (0x7f)
DIAGNOSTICS
BadAlloc Unable to allocate storage
BadImplementation
Invalid reply from server
BadValue An argument is out of range
SEE ALSO
XkbChangeTypesOfKey(3), XkbCopyKeyType(3), XkbCopyKeyTypes(3), XkbGetKeyActions(3), XkbGetKeyBehaviors(3), XkbGetKeyExplicitComponents(3), XkbGetKeyModifierMap(3), XkbGetKeySyms(3), XkbGetKeyTypes(3), XkbResizeKeyActions(3), XkbResizeKeySyms(3), XkbResizeKeyType(3), XkbGetVirtualModMap(3), XkbGetVirtualMods(3)
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