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+.\" 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
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+.\"
+.TH XkbKeyGroupsWidth __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
+.SH NAME
+XkbKeyGroupsWidth \- Computes the maximum width associated with the key 
+corresponding to 
+.I keycode
+.SH SYNOPSIS
+.B int XkbKeyGroupsWidth 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
+The key width and number of groups associated with a key are used to form a 
+small two-dimensional array of KeySyms for a key. This array may be different 
+sizes for different keys. The array for a single key is stored as a linear list, 
+in row-major order. The arrays for all of the keys are stored in the 
+.I syms 
+field of the client map. There is one row for each group associated with a key 
+and one column for each level. The index corresponding to a given group and 
+shift level is computed as:
+.nf
+
+     idx = group_index * key_width + shift_level
+     
+.fi
+The 
+.I offset 
+field of the 
+.I key_sym_map 
+entry for a key is used to access the beginning of the array.
+
+.I XkbKeyGroupsWidth 
+computes the maximum width associated with the key corresponding to 
+.I keycode.