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Diffstat (limited to 'libX11/man/xkb/XkbKeyNumActions.man')
-rw-r--r-- | libX11/man/xkb/XkbKeyNumActions.man | 226 |
1 files changed, 113 insertions, 113 deletions
diff --git a/libX11/man/xkb/XkbKeyNumActions.man b/libX11/man/xkb/XkbKeyNumActions.man index 6b94a2a51..37dea9ca2 100644 --- a/libX11/man/xkb/XkbKeyNumActions.man +++ b/libX11/man/xkb/XkbKeyNumActions.man @@ -1,113 +1,113 @@ -'\" 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"),
-.\" 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 XkbKeyNumActions __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
-.SH NAME
-XkbKeyNumActions \- Computes the number of actions associated with the key corresponding to
-keycode
-.SH SYNOPSIS
-.HP
-.B int XkbKeyNumActions
-.BI "(\^XkbDescPtr " "xkb" "\^,"
-.BI "KeyCode " "keycode" "\^);"
-.if n .ti +5n
-.if t .ti +.5i
-.SH ARGUMENTS
-.TP
-.I \- xkb
-Xkb description of interest
-.TP
-.I \- keycode
-keycode of interest
-.SH DESCRIPTION
-.LP
-A key action defines the effect key presses and releases have on the internal state of the
-server. For example, the expected key action associated with pressing the Shift key is to set
-the Shift modifier. There is zero or one key action associated with each keysym bound to each
-key.
-
-Just as the entire list of key symbols for the keyboard mapping is held in the
-.I syms
-field of the client map, the entire list of key actions for the keyboard mapping is held in the
-.I acts
-array of the server map. The total size of
-.I acts
-is specified by
-.I size_acts,
-and the number of entries is specified by
-.I num_acts.
-
-The
-.I key_acts
-array, indexed by keycode, describes the actions associated with a key. The
-.I key_acts
-array has
-.I min_key_code
-unused entries at the start to allow direct indexing using a keycode. If a
-.I key_acts
-entry is zero, it means the key does not have any actions associated with it. If an entry is not
-zero, the entry represents an index into the
-.I acts
-field of the server map, much as the
-.I offset
-field of a KeySymMapRec structure is an index into the
-.I syms
-field of the client map.
-
-The reason the
-.I acts
-field is a linear list of XkbActions is to reduce the memory consumption associated with a
-keymap. Because Xkb allows individual keys to have multiple shift levels and a different number
-of groups per key, a single two-dimensional array of KeySyms would potentially be very large and
-sparse. Instead, Xkb provides a small two-dimensional array of XkbActions for each key. To store
-all of these individual arrays, Xkb concatenates each array together in the
-.I acts
-field of the server map.
-
-The key action structures consist only of fields of type char or unsigned char. This is done to
-optimize data transfer when the server sends bytes over the wire. If the fields are anything but
-bytes, the server has to sift through all of the actions and swap any nonbyte fields. Because
-they consist of nothing but bytes, it can just copy them out.
-
-.I XkbKeyNumActions
-computes the number of actions associated with the key corresponding to
-.I keycode.
-This should be the same value as the result of
-.I XkbKeyNumSyms.
-.SH STRUCTURES
-.LP
-The KeySymMapRec structure is defined as follows:
-.nf
-
- #define XkbNumKbdGroups 4
- #define XkbMaxKbdGroup (XkbNumKbdGroups-1)
-
- typedef struct { /\(** map to keysyms for a single keycode */
- unsigned char kt_index[XkbNumKbdGroups]; /\(** key type index for each group */
- unsigned char group_info; /\(** # of groups and out of range group handling */
- unsigned char width; /\(** max # of shift levels for key */
- unsigned short offset; /\(** index to keysym table in syms array */
-} XkbSymMapRec, *XkbSymMapPtr;
-
-.fi
-.SH "SEE ALSO"
-.BR XkbKeyNumSyms (__libmansuffix__)
+'\" 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"), +.\" 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 XkbKeyNumActions __libmansuffix__ __xorgversion__ "XKB FUNCTIONS" +.SH NAME +XkbKeyNumActions \- Computes the number of actions associated with the key corresponding to +keycode +.SH SYNOPSIS +.HP +.B int XkbKeyNumActions +.BI "(\^XkbDescPtr " "xkb" "\^," +.BI "KeyCode " "keycode" "\^);" +.if n .ti +5n +.if t .ti +.5i +.SH ARGUMENTS +.TP +.I \- xkb +Xkb description of interest +.TP +.I \- keycode +keycode of interest +.SH DESCRIPTION +.LP +A key action defines the effect key presses and releases have on the internal state of the +server. For example, the expected key action associated with pressing the Shift key is to set +the Shift modifier. There is zero or one key action associated with each keysym bound to each +key. + +Just as the entire list of key symbols for the keyboard mapping is held in the +.I syms +field of the client map, the entire list of key actions for the keyboard mapping is held in the +.I acts +array of the server map. The total size of +.I acts +is specified by +.I size_acts, +and the number of entries is specified by +.I num_acts. + +The +.I key_acts +array, indexed by keycode, describes the actions associated with a key. The +.I key_acts +array has +.I min_key_code +unused entries at the start to allow direct indexing using a keycode. If a +.I key_acts +entry is zero, it means the key does not have any actions associated with it. If an entry is not +zero, the entry represents an index into the +.I acts +field of the server map, much as the +.I offset +field of a KeySymMapRec structure is an index into the +.I syms +field of the client map. + +The reason the +.I acts +field is a linear list of XkbActions is to reduce the memory consumption associated with a +keymap. Because Xkb allows individual keys to have multiple shift levels and a different number +of groups per key, a single two-dimensional array of KeySyms would potentially be very large and +sparse. Instead, Xkb provides a small two-dimensional array of XkbActions for each key. To store +all of these individual arrays, Xkb concatenates each array together in the +.I acts +field of the server map. + +The key action structures consist only of fields of type char or unsigned char. This is done to +optimize data transfer when the server sends bytes over the wire. If the fields are anything but +bytes, the server has to sift through all of the actions and swap any nonbyte fields. Because +they consist of nothing but bytes, it can just copy them out. + +.I XkbKeyNumActions +computes the number of actions associated with the key corresponding to +.I keycode. +This should be the same value as the result of +.I XkbKeyNumSyms. +.SH STRUCTURES +.LP +The KeySymMapRec structure is defined as follows: +.nf + + #define XkbNumKbdGroups 4 + #define XkbMaxKbdGroup (XkbNumKbdGroups-1) + + typedef struct { /\(** map to keysyms for a single keycode */ + unsigned char kt_index[XkbNumKbdGroups]; /\(** key type index for each group */ + unsigned char group_info; /\(** # of groups and out of range group handling */ + unsigned char width; /\(** max # of shift levels for key */ + unsigned short offset; /\(** index to keysym table in syms array */ +} XkbSymMapRec, *XkbSymMapPtr; + +.fi +.SH "SEE ALSO" +.BR XkbKeyNumSyms (__libmansuffix__) |