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+'\" t
+.\" Copyright (c) 1999 - Sun Microsystems, Inc.
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+.\"
+.TH XkbUpdateMapFromCore __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
+.SH NAME
+XkbUpdateMapFromCore \-  Update a local Xkb keyboard map to reflect the mapping 
+expressed by a core format mapping
+.SH SYNOPSIS
+.B Bool XkbUpdateMapFromCore
+(
+.I xkb,
+.I first_key,
+.I num_keys,
+.I map_width,
+.I core_keysyms,
+.I changes
+)
+.br
+      XkbDescPtr \fIxkb\fP\^;
+.br
+      KeyCode \fIfirst_key\fP\^;
+.br
+      int \fInum_keys\fP\^;
+.br
+      int \fImap_width\fP\^;
+.br
+      KeySym * \fIcore_keysyms\fP\^;
+.br
+      XkbChangesPtr \fIchanges\fP\^;
+.if n .ti +5n
+.if t .ti +.5i
+.SH ARGUMENTS
+.TP
+.I \- xkb
+keyboard description to update
+.TP
+.I \- first_key
+keycode of first key description to update
+.TP
+.I \- num_keys
+number of key descriptions to update
+.TP
+.I \- map_width
+width of core protocol keymap
+.TP
+.I \- core_keysyms
+symbols in core protocol keymap
+.TP
+.I \- changes
+backfilled with changes made to Xkb
+.SH DESCRIPTION
+.LP
+Xkb provides several functions that make it easier to apply the compatibility 
+map to configure a client-side Xkb keyboard mapping, given a core protocol 
+representation of part or all of a keyboard mapping. Obtain a core protocol 
+representation of a keyboard mapping from an actual server (by using
+.I XGetKeyboardMapping, 
+for example), a data file, or some other source.
+
+.I XkbUpdateMapFromCore 
+interprets input argument information representing a keyboard map in core format 
+to update the Xkb keyboard description passed in 
+.I xkb. 
+Only a portion of the Xkb map is updated - the portion corresponding to keys 
+with keycodes in the range 
+.I first_key 
+through 
+.I first_key + num_keys - 1. 
+If 
+.I XkbUpdateMapFromCore 
+is being called in response to a MappingNotify event, 
+.I first_key 
+and 
+.I num_keys 
+are reported in the MappingNotify event. 
+.I core_keysyms 
+contains the keysyms corresponding to the keycode range being updated, in core 
+keyboard description order. 
+.I map_width 
+is the number of keysyms per key in 
+.I core_keysyms. 
+Thus, the first 
+.I map_width 
+entries in 
+.I core_keysyms 
+are for the key with keycode 
+.I first_key, 
+the next 
+.I map_width 
+entries are for key 
+.I first_key + 1, 
+and so on.
+
+In addition to modifying the Xkb keyboard mapping in 
+.I xkb, XkbUpdateMapFromCore 
+backfills the changes structure whose address is passed in 
+.I changes 
+to indicate the modifications that were made. You may then use 
+.I changes 
+in subsequent calls such as 
+.I XkbSetMap, 
+to propagate the local modifications to a server.
+.SH "SEE ALSO"
+.BR XkbSetMap (__libmansuffix__)