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'\" 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"),
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.\" 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.
.\"
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.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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.\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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.\"
.TH XkbResizeKeyActions __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
.SH NAME
XkbResizeKeyActions \- Change the number of actions bound to a key
.SH SYNOPSIS
.HP
.B XkbAction * XkbResizeKeyActions
.BI "(\^XkbDescRec *" "xkb" "\^,"
.BI "int " "key" "\^,"
.BI "int " "needed" "\^);"
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I \- xkb
keyboard description to change
.TP
.I \- key
keycode of key to change
.TP
.I \- needed
new number of actions required
.SH DESCRIPTION
.LP
The
.I xkb
parameter points to the keyboard description containing the
.I key
whose number of actions is to be changed. The
.I key
parameter is the keycode of the key to change, and needed specifies the new
number of actions required for the key.
.I XkbResizeKeyActions
reserves the space needed for the actions and returns a pointer to the beginning
of the new array that holds the actions. It can change the
.I acts, num_acts,
and
.I size_acts
fields of
.I xkb->server
if it is necessary to reallocate the
.I acts
array.
If
.I needed
is greater than the current number of keysyms for the key,
.I XkbResizeKeyActions
initializes all new actions in the array to NoAction.
Because the number of actions needed by a key is normally computed as width *
number of groups, and
.I XkbResizeKeyActions
does not modify either the width or number of groups for the key, a discrepancy
exists on return from
.I XkbResizeKeyActions
between the space allocated for the actions and the number required. The unused
entries in the list of actions returned by
.I XkbResizeKeyActions
are not preserved across future calls to any of the map editing functions, so
you must update the key actions (which updates the width and number of groups
for the key) before calling another allocator function. A call to
.I XkbChangeTypesOfKey
updates these.
If any allocation errors occur while resizing the number of actions bound to the
key,
.I XkbResizeKeyActions
returns NULL.
.SH "SEE ALSO"
.BR XkbChangeTypesOfKey (__libmansuffix__),
.BR XkbResizeKeySyms (__libmansuffix__)
.SH NOTES
.LP
A change to the number of actions bound to a key should be accompanied by a
change in the number of symbols bound to a key. Refer to
.I XkbResizeKeySyms
for more information on changing the number of symbols bound to a key.
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