'\" t .\" Copyright 1999 Oracle and/or its affiliates. All rights reserved. .\" .\" Permission is hereby granted, free of charge, to any person obtaining a .\" copy of this software and associated documentation files (the "Software"), .\" to deal in the Software without restriction, including without limitation .\" the rights to use, copy, modify, merge, publish, distribute, sublicense, .\" and/or sell copies of the Software, and to permit persons to whom the .\" Software is furnished to do so, subject to the following conditions: .\" .\" The above copyright notice and this permission notice (including the next .\" paragraph) shall be included in all copies or substantial portions of the .\" Software. .\" .\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR .\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, .\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL .\" THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER .\" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING .\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER .\" DEALINGS IN THE SOFTWARE. .\" .TH XkbChangeNames 3 "libX11 1.6.7" "X Version 11" "XKB FUNCTIONS" .SH NAME XkbChangeNames \- _summary-line_ .SH SYNOPSIS .HP .B Bool XkbChangeNames .BI "(\^Display *" "dpy" "\^," .BI "unsigned int " "which" "\^," .BI "XkbDescPtr " "Xkb" "\^);" .if n .ti +5n .if t .ti +.5i .SH ARGUMENTS .TP .I \- dpy connection to the X server .TP .I \- which mask of names or map components to be updated .TP .I \- Xkb keyboard description to be updated .SH DESCRIPTION .LP .I XkbChangeNames provides a more flexible method for changing symbolic names than .I XkbSetNames and requires the use of an XkbNameChangesRec structure. .I XkbChangeNames copies any names specified by .I changes from the keyboard description, .I xkb, to the X server specified by .I dpy. XkbChangeNames aborts and returns False if any illegal type names or type shift level names are specified by changes. To change the symbolic names in the server, first modify a local copy of the keyboard description and then use either .I XkbSetNames, or, to save network traffic, use a XkbNameChangesRec structure and call .I XkbChangeNames to download the changes to the server. .I XkbSetNames and .I XkbChangeNames can generate BadAlloc, BadAtom, BadLength, BadMatch, and BadImplementation errors. .SH STRUCTURES .LP The XkbNameChangesRec allows applications to identify small modifications to the symbolic names and effectively reduces the amount of traffic sent to the server: .nf typedef struct _XkbNameChanges { unsigned int changed; /\(** name components that have changed */ unsigned char first_type; /\(** first key type with a new name */ unsigned char num_types; /\(** number of types with new names */ unsigned char first_lvl; /\(** first key type with new level names */ unsigned char num_lvls; /\(** number of key types with new level names */ unsigned char num_aliases; /\(** if key aliases changed, total number of key aliases */ unsigned char num_rg; /\(** if radio groups changed, total number of radio groups */ unsigned char first_key; /\(** first key with a new name */ unsigned char num_keys; /\(** number of keys with new names */ unsigned short changed_vmods; /\(** mask of virtual modifiers for which names have changed */ unsigned long changed_indicators; /\(** mask of indicators for which names were changed */ unsigned char changed_groups; /\(** mask of groups for which names were changed */ } XkbNameChangesRec, *XkbNameChangesPtr .fi The .I changed field specifies the name components that have changed and is the bitwise inclusive OR of the valid names mask bits defined in Table 1. The rest of the fields in the structure specify the ranges that have changed for the various kinds of symbolic names, as shown in Table 2. Xkb provides several functions that work with symbolic names. Each of these functions uses a mask to specify individual fields of the structures described above. These masks and their relationships to the fields in a keyboard description are shown in Table 1. .TS c s s s l l l l. Table 1 Symbolic Names Masks _ Mask Bit Value Keyboard Field Component _ XkbKeycodesNameMask (1<<0) Xkb->names keycodes XkbGeometryNameMask (1<<1) Xkb->names geometry XkbSymbolsNameMask (1<<2) Xkb->names symbols XkbPhysSymbolsNameMask (1<<3) Xkb->names phys_symbols XkbTypesNameMask (1<<4) Xkb->names type XkbCompatNameMask (1<<5) Xkb->names compat XkbKeyTypeNamesMask (1<<6) Xkb->map type[*].name XkbKTLevelNamesMask (1<<7) Xkb->map type[*].lvl_names[*] XkbIndicatorNamesMask (1<<8) Xkb->names indicators[*] XkbKeyNamesMask (1<<9) Xkb->names keys[*], num_keys XkbKeyAliasesMask (1<<10) Xkb->names key_aliases[*], num_key_aliases XkbVirtualModNamesMask (1<<11) Xkb->names vmods[*] XkbGroupNamesMask (1<<12) Xkb->names groups[*] XkbRGNamesMask (1<<13) Xkb->names radio_groups[*], num_rg XkbComponentNamesMask (0x3f) Xkb->names keycodes, geometry, symbols, physical symbols, types, and compatibility map XkbAllNamesMask (0x3fff) Xkb->names all name components .TE .TS c s s s l l l l. Table 2 XkbNameChanges Fields _ Mask Fields Component Field _ XkbKeyTypeNamesMask first_type, Xkb->map type[*].name num_types XkbKTLevelNamesMask first_lvl, Xkb->map type[*].lvl_names[*] num_lvls XkbKeyAliasesMask num_aliases Xkb->names key_aliases[*] XkbRGNamesMask num_rg Xkb->names radio_groups[*] XkbKeyNamesMask first_key, Xkb->names keys[*] num_keys XkbVirtualModNamesMask changed_vmods Xkb->names vmods[*] XkbIndicatorNamesMask changed_indicators Xkb->names indicators[*] XkbGroupNamesMask changed_groups Xkb->names groups[*] .TE .SH DIAGNOSTICS .TP 15 .B BadAlloc Unable to allocate storage .TP 15 .B BadAtom A name is neither a valid Atom or None .TP 15 .B BadImplementation Invalid reply from server .TP 15 .B BadLength The length of a request is shorter or longer than that required to minimally contain the arguments .TP 15 .B BadMatch A compatible version of Xkb was not available in the server or an argument has correct type and range, but is otherwise invalid .SH "SEE ALSO" .BR XkbSetNames (3)