136 lines
4.7 KiB
Groff
136 lines
4.7 KiB
Groff
'\" t
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.\" Copyright 1999 Sun Microsystems, Inc. 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 XkbChangeMap __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
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.SH NAME
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XkbChangeMap \- Update only partial components of a keyboard description, modify
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the appropriate fields in the server and map components of a local copy of the
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keyboard description
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.SH SYNOPSIS
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.HP
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.B Bool XkbChangeMap
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.BI "(\^Display *" "dpy" "\^,"
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.BI "XkbDescPtr " "xkb" "\^,"
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.BI "XkbMapChangesPtr " "changes" "\^);"
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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 \- dpy
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connection to X server
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.TP
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.I \- xkb
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description from which new values are taken
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.TP
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.I \- changes
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identifies component parts to update
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.SH DESCRIPTION
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.LP
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To update only partial components of a keyboard description, modify the
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appropriate fields in the server and map components of a local copy of the
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keyboard description, then call
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.I XkbChangeMap
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with an XkbMapChangesRec structure indicating which components have changed.
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.I XkbChangeMap
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copies any components specified by the
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.I changes
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structure from the keyboard description,
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.I xkb,
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to the X server specified by
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.I dpy.
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If any components specified by
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.I changes
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are not present in the
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.I xkb
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parameter,
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.I XkbChangeMap
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returns False. Otherwise, it sends a request to the server and returns True.
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.I XkbChangeMap
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can generate BadAlloc, BadLength, and BadValue protocol errors.
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.SH "RETURN VALUES"
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.TP 15
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True
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The XkbChangeMap function returns True if the components specified by
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.I changes
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are present in the
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.I xkb
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parameter.
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.TP 15
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False
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The XkbChangeMap function returns False if the components specified by
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.I changes
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are not present in the
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.I xkb
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parameter.
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.SH STRUCTURES
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.LP
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Use the XkbMapChangesRec structure to identify and track partial modifications
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to the mapping components and to reduce the amount of traffic between the server
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and clients.
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.nf
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typedef struct _XkbMapChanges {
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unsigned short changed; /\(** identifies valid components in
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structure */
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KeyCode min_key_code; /\(** lowest numbered keycode for device
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*/
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KeyCode max_key_code; /\(** highest numbered keycode for device
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*/
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unsigned char first_type; /\(** index of first key type modified */
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unsigned char num_types; /\(** # types modified */
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KeyCode first_key_sym; /\(** first key whose key_sym_map changed
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*/
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unsigned char num_key_syms; /\(** # key_sym_map entries changed */
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KeyCode first_key_act; /\(** first key whose key_acts entry
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changed */
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unsigned char num_key_acts; /\(** # key_acts entries changed */
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KeyCode first_key_behavior; /\(** first key whose behaviors changed */
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unsigned char num_key_behaviors; /\(** # behaviors entries changed */
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KeyCode first_key_explicit; /\(** first key whose explicit entry
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changed */
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unsigned char num_key_explicit; /\(** # explicit entries changed */
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KeyCode first_modmap_key; /\(** first key whose modmap entry changed
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*/
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unsigned char num_modmap_keys; /\(** # modmap entries changed */
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KeyCode first_vmodmap_key; /\(** first key whose vmodmap changed */
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unsigned char num_vmodmap_keys; /\(** # vmodmap entries changed */
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unsigned char pad1; /\(** reserved */
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unsigned short vmods; /\(** mask indicating which vmods changed
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*/
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} XkbMapChangesRec,*XkbMapChangesPtr;
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.fi
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.SH DIAGNOSTICS
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.TP 15
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.B BadAlloc
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Unable to allocate storage
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.TP 15
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.B BadLength
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The length of a request is shorter or longer than that required to minimally
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contain the arguments
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.TP 15
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.B BadValue
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An argument is out of range
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