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.\" 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 XkbCopyKeyType __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
.SH NAME
XkbCopyKeyType \- Copy one XkbKeyTypeRec structures
.SH SYNOPSIS
.HP
.B Status XkbCopyKeyType
.BI "(\^XkbKeyTypePtr " "from" "\^,"
.BI "XkbKeyTypePtr " "into" "\^);"
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I \- from
pointer to XkbKeyTypeRec to be copied
.TP
.I \- into
pointer to XkbKeyTypeRec to be changed
.SH DESCRIPTION
.LP
.I XkbCopyKeyType
copies the key type specified by
.I from
to the key type specified by
.I into.
Both must point to legal XkbKeyTypeRec structures. Xkb assumes
.I from
and
.I into
point to different places. As a result, overlaps can be fatal.
.I XkbCopyKeyType
frees any existing
.I map, preserve,
and
.I level_names
in
.I into
prior to copying. If any allocation errors occur while copying
.I from
to
.I into, XkbCopyKeyType
returns BadAlloc. Otherwise,
.I XkbCopyKeyType
copies
.I from
to
.I into
and returns Success.
.SH STRUCTURES
.LP
Key types are used to determine the shift level of a key given the current state of the
keyboard. The set of all possible key types for the Xkb keyboard description are held in the
.I types
field of the client map, whose total size is stored in
.I size_types,
and whose total number of valid entries is stored in
.I num_types.
Key types are defined using the following structure:
.nf
typedef struct { /\&* Key Type */
XkbModsRec mods; /\&* modifiers used to compute shift level */
unsigned char num_levels; /\&* total # shift levels, do not modify directly */
unsigned char map_count; /\&* # entries in map, preserve (if non-NULL) */
XkbKTMapEntryPtr map; /\&* vector of modifiers for each shift level */
XkbModsPtr preserve; /\&* mods to preserve for corresponding map entry */
Atom name; /\&* name of key type */
Atom * level_names; /\&* array of names of each shift level */
} XkbKeyTypeRec, *XkbKeyTypePtr;
.fi
.SH DIAGNOSTICS
.TP 15
.B BadAlloc
Unable to allocate storage
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