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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 XkbSelectEventDetails __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
.SH NAME
XkbSelectEventDetails \- Selects or deselects for a specific Xkb event and
optionally places conditions on when events of that type are reported to your
client
.SH SYNOPSIS
.HP
.B Bool XkbSelectEventDetails
.BI "(\^Display *" "display" "\^,"
.BI "unsigned int " "device_spec" "\^,"
.BI "unsigned int " "event_type" "\^,"
.BI "unsigned long int " "bits_to_change" "\^,"
.BI "unsigned long int " "values_for_bits" "\^);"
.if n .ti +5n
.if t .ti +.5i
.SH ARGUMENTS
.TP
.I display
connection to the X server
.TP
.I device_spec
device ID, or XkbUseCoreKbd
.TP
.I event_type
Xkb event type of interest
.TP
.I bits_to_change
determines events to be selected / deselected
.TP
.I values_for_bits
1=>select, 0->deselect; for events in bits_to_change
.SH DESCRIPTION
.LP
Xkb events are selected using an event mask, much the same as normal core X
events are selected. However, unlike selecting core X events, where you must
specify the selection status (on or off) for all possible event types whenever
you wish to change the selection criteria for any one event, Xkb allows you to
restrict the specification to only the event types you wish to change. This
means that you do not need to remember the event selection values for all
possible types each time you want to change one of them.
Many Xkb event types are generated under several different circumstances. When
selecting to receive an Xkb event, you may specify either that you want it
delivered under all circumstances, or that you want it delivered only for a
subset of the possible circumstances.
You can also deselect an event type that was previously selected for, using the
same granularity.
Xkb provides two functions to select and deselect delivery of Xkb events.
.I XkbSelectEvents
allows you to select or deselect delivery of more than one Xkb event type at
once. Events selected using
.I XkbSelectEvents
are delivered to your program under all circumstances that generate the events.
To restrict delivery of an event to a subset of the conditions under which it
occurs, use
.I XkbSelectEventDetails. XkbSelectEventDetails
only allows you to change the selection conditions for a single event at a time,
but it provides a means of fine-tuning the conditions under which the event is
delivered.
To select or deselect for a specific Xkb event and optionally place conditions
on when events of that type are reported to your client, use
.I XkbSelectEventDetails.
This allows you to exercise a finer granularity of
control over delivery of Xkb events with
.I XkbSelectEvents.
While
.I XkbSelectEvents
allows multiple events to be selected,
.I XkbSelectEventDetails
changes the selection criteria for a single type of Xkb
event. The interpretation of the
.I bits_to_change
and
.I values_for_bits
masks depends on the event type in question.
.I XkbSelectEventDetails
changes the Xkb event selection mask for the keyboard
specified by
.I device_spec
and the Xkb event specified by
.I event_type.
To turn on event selection for an event detail, set the bit for the
detail in the
.I bits_to_change
parameter and set the corresponding bit in the
.I values_for_bits
parameter. To turn off event detail selection for a detail, set
the bit for the detail in the
.I bits_to_change
parameter and do not set the corresponding bit in the
.I values_for_bits
parameter.
If an invalid event type is specified, a BadValue protocol error results. If a
bit is not set in the
.I bits_to_change
parameter, but the corresponding bit is set in the
.I values_for_bits
parameter, a BadMatch protocol error results. If an undefined
bit is set in either the
.I bits_to_change
or the
.I values_for_bits
parameter, a BadValue protocol error results.
For each type of Xkb event, the legal event details that you can specify in the
.I XkbSelectEventDetails
request are listed in the chapters that describe each event in detail.
.SH DIAGNOSTICS
.TP 15
.SM BadMatch
A compatible version of Xkb was not available in the server or an argument has
correct type and range, but is otherwise invalid
.TP 15
.SM BadValue
An argument is out of range
.SH "SEE ALSO"
.BR XkbSelectEvents (__libmansuffix__),
.BR XkbUseCoreKbd (__libmansuffix__)
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