187 lines
6.3 KiB
Groff
187 lines
6.3 KiB
Groff
'\" t
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.\" Copyright 1999 Oracle and/or its affiliates. All rights reserved.
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining a
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.\" copy of this software and associated documentation files (the "Software"),
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.\" to deal in the Software without restriction, including without limitation
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.\" the rights to use, copy, modify, merge, publish, distribute, sublicense,
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.\" and/or sell copies of the Software, and to permit persons to whom the
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.\" Software is furnished to do so, subject to the following conditions:
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.\"
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.\" The above copyright notice and this permission notice (including the next
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.\" paragraph) shall be included in all copies or substantial portions of the
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.\" Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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.\" THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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.\" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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.\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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.\" DEALINGS IN THE SOFTWARE.
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.\"
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.TH XkbChangeNames __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
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.SH NAME
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XkbChangeNames \- _summary-line_
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.SH SYNOPSIS
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.HP
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.B Bool XkbChangeNames
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.BI "(\^Display *" "dpy" "\^,"
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.BI "unsigned int " "which" "\^,"
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.BI "XkbDescPtr " "Xkb" "\^);"
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.if n .ti +5n
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.if t .ti +.5i
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.SH ARGUMENTS
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.TP
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.I \- dpy
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connection to the X server
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.TP
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.I \- which
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mask of names or map components to be updated
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.TP
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.I \- Xkb
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keyboard description to be updated
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.SH DESCRIPTION
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.LP
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.I XkbChangeNames
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provides a more flexible method for changing symbolic names than
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.I XkbSetNames
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and requires the use of an XkbNameChangesRec structure.
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.I XkbChangeNames
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copies any names specified by
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.I changes
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from the keyboard description,
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.I xkb,
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to the X server specified by
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.I dpy. XkbChangeNames
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aborts and returns False if any illegal type names or type shift level names are
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specified by changes.
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To change the symbolic names in the server, first modify a local copy of the
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keyboard description and then use either
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.I XkbSetNames,
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or, to save network traffic, use a XkbNameChangesRec structure and call
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.I XkbChangeNames
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to download the changes to the server.
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.I XkbSetNames
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and
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.I XkbChangeNames
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can generate BadAlloc, BadAtom, BadLength, BadMatch, and BadImplementation
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errors.
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.SH STRUCTURES
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.LP
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The XkbNameChangesRec allows applications to identify small modifications to the
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symbolic names and
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effectively reduces the amount of traffic sent to the server:
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.nf
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typedef struct _XkbNameChanges {
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unsigned int changed; /\(** name components that have changed
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*/
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unsigned char first_type; /\(** first key type with a new name */
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unsigned char num_types; /\(** number of types with new names */
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unsigned char first_lvl; /\(** first key type with new level
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names */
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unsigned char num_lvls; /\(** number of key types with new level
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names */
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unsigned char num_aliases; /\(** if key aliases changed, total
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number of key aliases */
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unsigned char num_rg; /\(** if radio groups changed, total
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number of radio groups */
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unsigned char first_key; /\(** first key with a new name */
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unsigned char num_keys; /\(** number of keys with new names */
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unsigned short changed_vmods; /\(** mask of virtual modifiers for
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which names have changed */
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unsigned long changed_indicators; /\(** mask of indicators for which names
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were changed */
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unsigned char changed_groups; /\(** mask of groups for which names
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were changed */
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} XkbNameChangesRec, *XkbNameChangesPtr
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.fi
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The
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.I changed
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field specifies the name components that have changed and is the bitwise
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inclusive OR of the valid names
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mask bits defined in Table 1. The rest of the fields in the structure specify
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the ranges that have changed
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for the various kinds of symbolic names, as shown in Table 2.
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Xkb provides several functions that work with symbolic names. Each of these
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functions uses a mask to
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specify individual fields of the structures described above. These masks and
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their relationships to the
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fields in a keyboard description are shown in Table 1.
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.TS
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c s s s
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l l l l.
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Table 1 Symbolic Names Masks
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_
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Mask Bit Value Keyboard Field
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Component
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_
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XkbKeycodesNameMask (1<<0) Xkb->names keycodes
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XkbGeometryNameMask (1<<1) Xkb->names geometry
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XkbSymbolsNameMask (1<<2) Xkb->names symbols
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XkbPhysSymbolsNameMask (1<<3) Xkb->names phys_symbols
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XkbTypesNameMask (1<<4) Xkb->names type
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XkbCompatNameMask (1<<5) Xkb->names compat
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XkbKeyTypeNamesMask (1<<6) Xkb->map type[*].name
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XkbKTLevelNamesMask (1<<7) Xkb->map type[*].lvl_names[*]
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XkbIndicatorNamesMask (1<<8) Xkb->names indicators[*]
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XkbKeyNamesMask (1<<9) Xkb->names keys[*], num_keys
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XkbKeyAliasesMask (1<<10) Xkb->names key_aliases[*], num_key_aliases
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XkbVirtualModNamesMask (1<<11) Xkb->names vmods[*]
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XkbGroupNamesMask (1<<12) Xkb->names groups[*]
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XkbRGNamesMask (1<<13) Xkb->names radio_groups[*], num_rg
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XkbComponentNamesMask (0x3f) Xkb->names keycodes,
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geometry,
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symbols,
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physical symbols,
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types, and
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compatibility map
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XkbAllNamesMask (0x3fff) Xkb->names all name components
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.TE
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.TS
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c s s s
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l l l l.
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Table 2 XkbNameChanges Fields
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_
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Mask Fields Component Field
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_
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XkbKeyTypeNamesMask first_type, Xkb->map type[*].name
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num_types
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XkbKTLevelNamesMask first_lvl, Xkb->map type[*].lvl_names[*]
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num_lvls
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XkbKeyAliasesMask num_aliases Xkb->names key_aliases[*]
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XkbRGNamesMask num_rg Xkb->names radio_groups[*]
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XkbKeyNamesMask first_key, Xkb->names keys[*]
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num_keys
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XkbVirtualModNamesMask changed_vmods Xkb->names vmods[*]
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XkbIndicatorNamesMask changed_indicators Xkb->names indicators[*]
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XkbGroupNamesMask changed_groups Xkb->names groups[*]
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.TE
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.SH DIAGNOSTICS
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.TP 15
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.B BadAlloc
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Unable to allocate storage
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.TP 15
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.B BadAtom
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A name is neither a valid Atom or None
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.TP 15
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.B BadImplementation
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Invalid reply from server
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.TP 15
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.B BadLength
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The length of a request is shorter or longer than that required to minimally
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contain the arguments
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.TP 15
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.B BadMatch
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A compatible version of Xkb was not available in the server or an argument has
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correct type and range, but is otherwise invalid
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.SH "SEE ALSO"
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.BR XkbSetNames (__libmansuffix__)
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