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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /libX11/man/xkb/XkbKeyActionsPtr.man | |
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Checked in the following released items:
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font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
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font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
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bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'libX11/man/xkb/XkbKeyActionsPtr.man')
-rw-r--r-- | libX11/man/xkb/XkbKeyActionsPtr.man | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/libX11/man/xkb/XkbKeyActionsPtr.man b/libX11/man/xkb/XkbKeyActionsPtr.man new file mode 100644 index 000000000..c9d4a29fb --- /dev/null +++ b/libX11/man/xkb/XkbKeyActionsPtr.man @@ -0,0 +1,146 @@ +'\" t +.\" Copyright (c) 1999 - Sun Microsystems, Inc. +.\" 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, and/or sell copies of the Software, and to permit persons +.\" to whom the Software is furnished to do so, provided that the above +.\" copyright notice(s) and this permission notice appear in all copies of +.\" the Software and that both the above copyright notice(s) and this +.\" permission notice appear in supporting documentation. +.\" +.\" 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 +.\" OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +.\" HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL +.\" INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING +.\" FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, +.\" NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION +.\" WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +.\" +.\" Except as contained in this notice, the name of a copyright holder +.\" shall not be used in advertising or otherwise to promote the sale, use +.\" or other dealings in this Software without prior written authorization +.\" of the copyright holder. +.\" +.TH XkbKeyActionsPtr __libmansuffix__ __xorgversion__ "XKB FUNCTIONS" +.SH NAME +XkbKeyActionsPtr \- Returns a pointer to the two-dimensional array of key +actions associated with +the key corresponding to keycode +.SH SYNOPSIS +.B XkbKeyActionPtr XkbKeyActionsPtr macro +( +.I xkb, +.I keycode +) +.br + XkbDescPtr \fIxkb\fP\^; +.br + KeyCode \fIkeycode\fP\^; +.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 XkbKeyActionsPtr +returns a pointer to the two-dimensional array of key actions associated with +the key corresponding +to +.I keycode. +Use +.I XkbKeyActionsPtr +only if the key actually has some actions associated with it, that is, +.I XkbKeyNumActions +(xkb, keycode) returns something greater than zero. +.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 XkbKeyNumActions (__libmansuffix__) |