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+'\" 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 XkbSetDebuggingFlags __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
+.SH NAME
+XkbSetDebuggingFlags \- Change the values of any of the debug controls
+.SH SYNOPSIS
+.B Bool XkbSetDebuggingFlags
+(
+.I display,
+.I mask,
+.I flags,
+.I msg,
+.I ctrls_mask,
+.I ctrls,
+.I ret_flags,
+.I ret_ctrls
+)
+.br
+ Display *\fIdisplay\fP\^;
+.br
+ unsigned int \fImask\fP\^;
+.br
+ unsigned int \fIflags\fP\^;
+.br
+ char *\fImsg\fP\^;
+.br
+ unsigned int \fIctrls_mask\fP\^;
+.br
+ unsigned int \fIctrls\fP\^;
+.br
+ unsigned int *\fIret_flags\fP\^;
+.br
+ unsigned int *\fIret_ctrls\fP\^;
+.if n .ti +5n
+.if t .ti +.5i
+.SH ARGUMENTS
+.TP
+.I \- display
+connection to X server
+.TP
+.I \- mask
+mask selecting debug output flags to change
+.TP
+.I \- flags
+values for debug output flags selected by mask
+.TP
+.I \- msg
+message to print right now
+.TP
+.I \- ctrls_mask
+mask selecting debug controls to change
+.TP
+.I \- ctrls
+values for debug controls selected by ctrls_mask
+.TP
+.I \- ret_flags
+resulting state of all debug output flags
+.TP
+.I \- ret_ctrls
+resulting state of all debug controls
+.SH DESCRIPTION
+.LP
+The debugging aids are intended for use primarily by Xkb implementors and are
+optional in any implementation.
+
+There are two bitmasks that may be used to control debugging. One bitmask
+controls the output of debugging information, and the other controls behavior.
+Both bitmasks are initially all zeros.
+
+To change the values of any of the debug controls, use
+.I XkbSetDebuggingFlags.
+
+.I XkbSetDebuggingFlags
+modifies the debug output flags as specified by
+.I mask
+and
+flags,
+modifies the debug controls flags as specified by
+.I ctrls_mask
+and
+ctrls,
+prints the message
+.I msg,
+and backfills
+.I ret_flags
+and
+.I ret_ctrls
+with the resulting debug output and debug controls flags.
+
+When bits are set in the debug output masks,
+.I mask
+and
+.I flags,
+Xkb prints debug information corresponding to each bit at appropriate points
+during its processing. The device to which the output is written is
+implementation-dependent, but is normally the same device to which X server
+error messages are directed; thus the bits that can be set in
+.I mask
+and
+.I flags
+is implementation-specific. To turn on a debug output selection, set the bit for
+the output in the
+.I mask
+parameter and set the corresponding bit in the
+.I flags
+parameter. To turn off event selection for an event, set the bit for the output
+in the
+.I mask
+parameter and do not set the corresponding bit in the
+.I flags
+parameter.
+
+When bits are set in the debug controls masks,
+.I ctrls_mask
+and
+.I ctrls,
+Xkb modifies its behavior according to each controls bit.
+.I ctrls_mask
+and
+ctrls
+are related in the same way that
+.I mask
+and
+.I flags
+are. The valid controls bits are defined in Table 1.
+
+.TS
+c s s
+l l l.
+Table 1 Debug Control Masks
+_
+Debug Control Mask Value Meaning
+_
+XkbDF_DisableLocks (1 << 0) Disable actions that lock modifiers
+.TE
+
+.I XkbSetDebuggingFlags
+returns True if successful and False otherwise. The only protocol error it may
+generate is BadAlloc, if for some reason it is unable to allocate storage.
+
+.I XkbSetDebuggingFlags
+is intended for developer use and may be disabled in production X servers. If it
+is disabled,
+.I XkbSetDebuggingFlags
+has no effect and does not generate any protocol errors.
+
+The message in
+.I msg
+is written immediately. The device to which it is written is implementation
+dependent but is normally the same device where X server error messages are
+directed.
+.SH "RETURN VALUES"
+.TP 15
+True
+The
+.I XkbSetDebuggingFlags
+function returns True when successful.
+.TP 15
+False
+The
+.I XkbSetDebuggingFlags
+function returns False when not successful.
+.SH DIAGNOSTICS
+.TP 15
+.B BadAlloc
+Unable to allocate storage