336 lines
9.0 KiB
Groff
336 lines
9.0 KiB
Groff
'\" t
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.\" Copyright (c) 1999 - Sun Microsystems, Inc.
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.\" 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
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, and/or sell copies of the Software, and to permit persons
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.\" to whom the Software is furnished to do so, provided that the above
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.\" copyright notice(s) and this permission notice appear in all copies of
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.\" the Software and that both the above copyright notice(s) and this
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.\" permission notice appear in supporting documentation.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
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.\" OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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.\" HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
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.\" INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
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.\" FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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.\" NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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.\" WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of a copyright holder
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.\" shall not be used in advertising or otherwise to promote the sale, use
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.\" or other dealings in this Software without prior written authorization
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.\" of the copyright holder.
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.\"
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.TH XkbGetMap __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
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.SH NAME
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XkbGetMap \- Allocate an XkbDescRec structure and populate it with the server's
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keyboard
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client map and server map
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.SH SYNOPSIS
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.B XkbDescPtr XkbGetMap
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(
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.I display,
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.I which,
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.I device_spec
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)
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.br
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Display * \fIdisplay\fP\^;
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.br
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unsigned int \fIwhich\fP\^;
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.br
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unsigned int \fIdevice_spec\fP\^;
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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 \- display
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connection to X server
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.TP
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.I \- which
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mask selecting subcomponents to populate
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.TP
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.I \- device_spec
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device_id, or XkbUseCoreKbd
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.SH DESCRIPTION
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.LP
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Xkb provides two functions to obtain the keyboard mapping components from the
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server. The
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first function,
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.I XkbGetMap,
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allocates an XkbDescRec structure, retrieves mapping components from the server,
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and
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stores them in the XkbDescRec structure it just allocated. The second function,
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.I XkbGetUpdatedMap,
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retrieves mapping components from the server and stores them in an XkbDescRec
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structure
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that has previously been allocated.
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To allocate an XkbDescRec structure and populate it with the server's keyboard
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client map
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and server map, use
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.I XkbGetMap. XkbGetMap
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is similar to
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.I XkbGetKeyboard,
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but is used only for obtaining the address of an XkbDescRec structure that is
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populated
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with keyboard mapping components. It allows finer control over which
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substructures of the
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keyboard mapping components are to be populated.
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.I XkbGetKeyboard
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always returns fully populated components, while
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.I XkbGetMap
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can be instructed to return a partially populated component.
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The
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.I which mask is a bitwise inclusive OR of the masks defined in Table 14.1. Only
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those
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portions of the keyboard server map and the keyboard client maps that are
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specified in
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.I which
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are allocated and populated.
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In addition to allocating and obtaining the server map and the client map,
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.I XkbGetMap
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also sets the
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.I device_spec,
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the
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.I min_key_code,
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and
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.I max_key_code
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fields of the keyboard description.
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.I XkbGetMap
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is synchronous; it queries the server for the desired information, waits for a
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reply, and
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then returns. If successful,
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.I XkbGetMap
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returns a pointer to the XkbDescRec structure it allocated. If unsuccessful,
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.I XkbGetMap
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returns NULL. When unsuccessful, one of the following protocol errors is also
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generated:
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BadAlloc (unable to allocate the XkbDescRec structure), BadValue (some mask bits
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in
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.I which
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are undefined), or BadImplementation (a compatible version of the Xkb extension
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is not
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available in the server). To free the returned data, use
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.I XkbFreeClientMap.
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Xkb also provides convenience functions to get partial component definitions
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from the
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server. These functions are specified in the "convenience functions" column in
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Table
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1. Refer to the sections listed in the table for more information on these
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functions.
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.TS
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c s s s s
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c s s s s
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l l l l l
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l l l l l
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lw(3i) l l lw(1i) lw(3i).
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Table 1 Xkb Mapping Component Masks
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and Convenience Functions
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_
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Mask Value Map Fields Convenience
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Functions
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_
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T{
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XkbKeyTypesMask
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T} (1<<0) client T{
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types
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.br
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size_types
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.br
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num_types
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T} T{
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XkbGetKeyTypes
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.br
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XkbResizeKeyType
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.br
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XkbCopyKeyType
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.br
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XkbCopyKeyTypes
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T}
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T{
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XkbKeySymsMask
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T} (1<<1) client T{
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syms
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.br
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size_syms
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.br
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num_syms
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.br
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key_sym_map
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T} T{
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XkbGetKeySyms
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.br
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XkbResizeKeySyms
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.br
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XkbChangeTypesOfKey
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T}
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T{
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XkbModifierMapMask
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T} (1<<2) client modmap T{
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XkbGetKeyModifierMap
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T}
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T{
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XkbExplicitComponentsMask
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T} (1<<3) server T{
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explicit
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T} T{
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XkbGetKeyExplicitComponents
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T}
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T{
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XkbKeyActionsMask
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T} (1<<4) server T{
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key_acts
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.br
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acts
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.br
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num_acts
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.br
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size_acts
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T} T{
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XkbGetKeyActions
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.br
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XkbResizeKeyActions
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T}
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T{
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XkbKeyBehaviorsMask
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T} (1<<5) server T{
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behaviors
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T} T{
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XkbGetKeyBehaviors
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T}
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T{
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XkbVirtualModsMask
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T} (1<<6) server T{
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vmods
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T} T{
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XkbGetVirtualMods
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T}
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T{
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XkbVirtualModMapMask
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T} (1<<7) server T{
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vmodmap
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T} T{
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XkbGetVirtualModMap
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T}
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.TE
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.nf
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.bp
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Xkb defines combinations of these masks for convenience:
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#define XkbResizableInfoMask (XkbKeyTypesMask)
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#define XkbAllClientInfoMask (XkbKeyTypesMask | XkbKeySymsMask |
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XkbModifierMapMask)
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#define XkbAllServerInfoMask (XkbExplicitComponentsMask |
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XkbKeyActionsMask |
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XkbKeyBehaviorsMask |
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XkbVirtualModsMask |
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XkbVirtualModMapMask)
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#define XkbAllMapComponentsMask XkbAllClientInfoMask |
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XkbAllServerInfoMask)
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.fi
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Key types, symbol maps, and actions are all interrelated: changes in one require
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changes
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in the others. The convenience functions make it easier to edit these components
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and
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handle the interdependencies.
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.SH STRUCTURES
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.LP
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The complete description of an Xkb keyboard is given by an XkbDescRec. The
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component
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structures in the XkbDescRec represent the major Xkb components.
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.nf
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typedef struct {
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struct _XDisplay * display; /\(** connection to X server */
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unsigned short flags; /\(** private to Xkb, do not modify */
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unsigned short device_spec; /\(** device of interest */
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KeyCode min_key_code; /\(** minimum keycode for device */
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KeyCode max_key_code; /\(** maximum keycode for device */
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XkbControlsPtr ctrls; /\(** controls */
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XkbServerMapPtr server; /\(** server keymap */
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XkbClientMapPtr map; /\(** client keymap */
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XkbIndicatorPtr indicators; /\(** indicator map */
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XkbNamesPtr names; /\(** names for all components */
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XkbCompatMapPtr compat; /\(** compatibility map */
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XkbGeometryPtr geom; /\(** physical geometry of keyboard */
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} XkbDescRec, *XkbDescPtr;
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.fi
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The
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.I display
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field points to an X display structure. The
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.I flags field is private to the library: modifying
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.I flags
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may yield unpredictable results. The
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.I device_spec
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field specifies the device identifier of the keyboard input device, or
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XkbUseCoreKeyboard, which specifies the core keyboard device. The
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.I min_key_code
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and
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.I max_key_code
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fields specify the least and greatest keycode that can be returned by the
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keyboard.
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Each structure component has a corresponding mask bit that is used in function
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calls to
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indicate that the structure should be manipulated in some manner, such as
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allocating it
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or freeing it. These masks and their relationships to the fields in the
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XkbDescRec are
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shown in Table 2.
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.TS
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c s s
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l l l
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l l l.
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Table 2 Mask Bits for XkbDescRec
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_
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Mask Bit XkbDescRec Field Value
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_
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XkbControlsMask ctrls (1L<<0)
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XkbServerMapMask server (1L<<1)
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XkbIClientMapMask map (1L<<2)
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XkbIndicatorMapMask indicators (1L<<3)
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XkbNamesMask names (1L<<4)
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XkbCompatMapMask compat (1L<<5)
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XkbGeometryMask geom (1L<<6)
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XkbAllComponentsMask All Fields (0x7f)
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.TE
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.SH "SEE ALSO"
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.BR XkbChangeTypesOfKey (__libmansuffix__),
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.BR XkbCopyKeyType (__libmansuffix__),
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.BR XkbCopyKeyTypes (__libmansuffix__),
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.BR XkbFreeClientMap (__libmansuffix__),
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.BR XkbGetKeyActions (__libmansuffix__),
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.BR XkbGetKeyBehaviors (__libmansuffix__),
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.BR XkbGetKeyboard (__libmansuffix__),
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.BR XkbGetKeyExplicitComponents (__libmansuffix__),
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.BR XkbGetKeyModifierMap (__libmansuffix__),
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.BR XkbGetKeySyms (__libmansuffix__),
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.BR XkbGetKeyTypes (__libmansuffix__),
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.BR XkbGetUpdatedMap (__libmansuffix__),
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.BR XkbGetVirtualModMap (__libmansuffix__),
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.BR XkbGetVirtualMods (__libmansuffix__),
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.BR XkbResizeKeyActions (__libmansuffix__),
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.BR XkbResizeKeySyms (__libmansuffix__),
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.BR XkbResizeKeyType (__libmansuffix__)
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