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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
+.\" 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 XkbOpenDisplay __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
+.SH NAME
+XkbOpenDisplay \-  Checks for a compatible version of the Xkb extension in both 
+the library and the server, and initializes the extension for use.
+.SH SYNOPSIS
+.B Display XkbOpenDisplay
+(
+.I display_name,
+.I event_rtrn,
+.I error_rtrn,
+.I major_in_out,
+.I minor_in_out,
+.I reason_rtrn
+)
+.br
+      char *\fIdisplay_name\fP\^;
+.br
+      int *\fIevent_rtrn\fP\^;
+.br
+      int *\fIerror_rtrn\fP\^;
+.br
+      int *\fImajor_in_out\fP\^;
+.br
+      int *\fIminor_in_out\fP\^;
+.br
+      int *\fIreason_rtrn\fP\^;                   
+.if n .ti +5n
+.if t .ti +.5i
+.SH ARGUMENTS
+.TP
+.I display_name
+hardware display name, which determines the display and communications domain to 
+be used
+.TP
+.I event_rtrn
+backfilled with the extension base event code
+.TP
+.I error_rtrn
+backfilled with the extension base error code
+.TP
+.I major_in_out
+compile time lib major version in, server major version out
+.TP
+.I minor_in_out
+compile time lib min version in, server minor version out 
+.TP
+.I reason_rtrn
+backfilled with a status code 
+.SH DESCRIPTION
+.LP
+As a convenience, you can use the function 
+.I XkbOpenDisplay 
+to perform these three 
+tasks at once: open a connection to an X server, check for a compatible version 
+of the Xkb extension in both the library and the server, and initialize the 
+extension for use.
+
+.I XkbOpenDisplay 
+is a convenience function that opens an X display connection and 
+initializes the X keyboard extension. In all cases, upon return 
+.I reason_rtrn 
+contains a status value indicating success or the type of failure. If 
+.I major_in_out 
+and 
+.I minor_in_out 
+are not NULL, 
+.I XkbOpenDisplay 
+first calls 
+.I XkbLibraryVersion 
+to determine whether the client library is compatible, passing 
+it the values pointed to by 
+.I major_in_out and 
+.I minor_in_out. If the library is 
+incompatible, 
+.I XkbOpenDisplay backfills 
+.I major_in_out 
+and 
+.I minor_in_out 
+with the 
+major and minor extension versions of the library being used and returns NULL. 
+If the library is compatible, 
+.I XkbOpenDisplay 
+next calls 
+.I XOpenDisplay 
+with the 
+.I display_name. 
+If this fails, the function returns NULL. If successful, 
+.I XkbOpenDisplay 
+calls 
+.I XkbQueryExtension 
+and backfills the major and minor Xkb 
+server extension version numbers in 
+.I major_in_out and 
+.I minor_in_out. If the server 
+extension version is not compatible with the library extension version or if the 
+server extension is not present, 
+.I XkbOpenDisplay 
+closes the display and returns 
+NULL. When successful, the function returns the display connection.
+
+The possible values for reason_rtrn are:
+
+.IP \(bu 5
+XkbOD_BadLibraryVersion indicates XkbLibraryVersion returned False.
+.IP \(bu 5
+XkbOD_ConnectionRefused indicates the display could not be opened.
+.IP \(bu 5
+XkbOD_BadServerVersion indicates the library and the server have incompatible 
+extension versions.
+.IP \(bu 5
+XkbOD_NonXkbServer indicates the extension is not present in the X server.
+.IP \(bu 5
+XkbOD_Success indicates that the function succeeded.
+.SH "RETURN VALUES"
+.TP 15
+NULL
+The 
+.I XkbOpenDisplay 
+function returns NULL if the library is incompatible.
+.sp
+.in 20
+The 
+.I XkbOpenDisplay 
+function returns NULL if the call to 
+.I XOpenDisplay 
+with the 
+.I display_name
+fails.
+.sp
+.in 20
+The 
+.I XkbOpenDisplay 
+function returns NULL and closes the display if the server extension version is not 
+compatible with the library extension version or if the server extension is not present.
+.SH DIAGNOSTICS
+.TP 15
+.SM BadAccess
+The Xkb extension has not been properly initialized
+.SH "SEE ALSO"
+.BR XkbLibraryVersion (__libmansuffix__),
+.BR XkbQueryExtension (__libmansuffix__),
+.BR XOpenDisplay (3X11)