101 lines
3.4 KiB
Groff
101 lines
3.4 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 XkbResizeKeyActions __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
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.SH NAME
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XkbResizeKeyActions \- Change the number of actions bound to a key
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.SH SYNOPSIS
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.HP
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.B XkbAction * XkbResizeKeyActions
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.BI "(\^XkbDescRec *" "xkb" "\^,"
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.BI "int " "key" "\^,"
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.BI "int " "needed" "\^);"
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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 \- xkb
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keyboard description to change
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.TP
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.I \- key
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keycode of key to change
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.TP
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.I \- needed
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new number of actions required
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.SH DESCRIPTION
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.LP
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The
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.I xkb
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parameter points to the keyboard description containing the
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.I key
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whose number of actions is to be changed. The
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.I key
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parameter is the keycode of the key to change, and needed specifies the new
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number of actions required for the key.
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.I XkbResizeKeyActions
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reserves the space needed for the actions and returns a pointer to the beginning
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of the new array that holds the actions. It can change the
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.I acts, num_acts,
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and
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.I size_acts
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fields of
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.I xkb->server
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if it is necessary to reallocate the
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.I acts
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array.
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If
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.I needed
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is greater than the current number of keysyms for the key,
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.I XkbResizeKeyActions
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initializes all new actions in the array to NoAction.
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Because the number of actions needed by a key is normally computed as width *
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number of groups, and
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.I XkbResizeKeyActions
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does not modify either the width or number of groups for the key, a discrepancy
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exists on return from
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.I XkbResizeKeyActions
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between the space allocated for the actions and the number required. The unused
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entries in the list of actions returned by
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.I XkbResizeKeyActions
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are not preserved across future calls to any of the map editing functions, so
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you must update the key actions (which updates the width and number of groups
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for the key) before calling another allocator function. A call to
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.I XkbChangeTypesOfKey
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updates these.
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If any allocation errors occur while resizing the number of actions bound to the
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key,
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.I XkbResizeKeyActions
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returns NULL.
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.SH "SEE ALSO"
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.BR XkbChangeTypesOfKey (__libmansuffix__),
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.BR XkbResizeKeySyms (__libmansuffix__)
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.SH NOTES
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.LP
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A change to the number of actions bound to a key should be accompanied by a
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change in the number of symbols bound to a key. Refer to
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.I XkbResizeKeySyms
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for more information on changing the number of symbols bound to a key.
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