'\" 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 XkbChangeDeviceInfo __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
.SH NAME
XkbChangeDeviceInfo \- Update the server's description of a device with the changes noted in an 
XkbDeviceChangesRec
.SH SYNOPSIS
.B Bool XkbChangeDeviceInfo
(
.I dpy,
.I device_info,
.I changes
)
.br
      Display * \fIdpy\fP\^;
.br
      XkbDeviceInfoPtr \fIdevice_info\fP\^;
.br
      XkbDeviceChangesPtr \fIchanges\fP\^;
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I \- dpy
connection to X server
.TP
.I \- device_info
local copy of device state and configuration
.TP
.I \- changes
note specifying changes in device_info
.SH DESCRIPTION
.LP
.I XkbChangeDeviceInfo 
updates the server's description of the device specified in 
.I device_info->device_spec 
with the changes specified in 
.I changes 
and contained in 
.I device_info. 
The update is made by an 
.I XkbSetDeviceInfo 
request.
.SH STRUCTURES
.LP
Changes to an Xkb extension device may be tracked by listening to XkbDeviceExtensionNotify events 
and accumulating the changes in an XkbDeviceChangesRec structure. The changes noted in the 
structure may then be used in subsequent operations to update either a server configuration or a 
local copy of an Xkb extension device configuration. The changes structure is defined as follows:
.nf

typedef struct _XkbDeviceChanges {
    unsigned int         changed;        /\(** bits indicating what has changed */
    unsigned short       first_btn;      /\(** number of first button which changed, if any */
    unsigned short       num_btns;       /\(** number of buttons that have changed */
    XkbDeviceLedChangesRec leds;
} XkbDeviceChangesRec,*XkbDeviceChangesPtr;

.fi
.SH "SEE ALSO"
.BR XkbSetDeviceInfo (__libmansuffix__)