2011-05-30 13:19:29 -06:00
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.\" Copyright 1999 Oracle and/or its affiliates. All rights reserved.
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2010-09-04 04:36:30 -06:00
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining a
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.\" copy of this software and associated documentation files (the "Software"),
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.\" to deal in the Software without restriction, including without limitation
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.\" Software is furnished to do so, subject to the following conditions:
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.\"
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.\" The above copyright notice and this permission notice (including the next
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.\" paragraph) shall be included in all copies or substantial portions of the
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.\" Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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.\" THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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.\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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.\" DEALINGS IN THE SOFTWARE.
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.\"
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.TH XkbGetDetectableAutoRepeat __libmansuffix__ __xorgversion__ "XKB FUNCTIONS"
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.SH NAME
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XkbGetDetectableAutoRepeat \- Determines whether or not the server supports
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DetectableAutoRepeat
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.SH SYNOPSIS
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.HP
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.B Bool XkbGetDetectableAutoRepeat
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.BI "(\^Display *" "display" "\^,"
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.BI "Bool *" "supported_rtrn" "\^);"
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.if n .ti +5n
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.if t .ti +.5i
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.SH ARGUMENTS
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.TP
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.I \- display
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connection to X server
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.TP
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.I \- supported_rtrn
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backfilled True if DetectableAutoRepeat supported
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.SH DESCRIPTION
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.LP
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Auto-repeat is the generation of multiple key events by a keyboard when the user
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presses a key and holds it down. Keyboard hardware and device-dependent X server
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software often implement auto-repeat by generating multiple KeyPress events with no
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intervening KeyRelease event. The standard behavior of the X server is to generate
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a KeyRelease event for every KeyPress event. If the keyboard hardware and
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device-dependent software of the X server implement auto-repeat by generating
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multiple KeyPress events, the device-independent part of the X server by default
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synthetically generates a KeyRelease event after each KeyPress event. This provides
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predictable behavior for X clients, but does not allow those clients to detect the
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fact that a key is auto-repeating.
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Xkb allows clients to request
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.I detectable auto-repeat.
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If a client requests and the server supports DetectableAutoRepeat, Xkb generates
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KeyRelease events only when the key is physically released. If DetectableAutoRepeat
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is not supported or has not been requested, the server synthesizes a KeyRelease
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event for each repeating KeyPress event it generates.
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DetectableAutoRepeat, unlike other controls, is not contained in the XkbControlsRec
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structure, nor can it be enabled or disabled via the EnabledControls control.
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Instead, query and set DetectableAutoRepeat using
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.I XkbGetDetectableAutoRepeat
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and
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.I XkbSetDetectableAutoRepeat.
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DetectableAutoRepeat is a condition that applies to all keyboard devices for a
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client's connection to a given X server; it cannot be selectively set for some
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devices and not for others. For this reason, none of the Xkb library functions
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involving DetectableAutoRepeat involve a device specifier.
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.I XkbGetDetectableAutoRepeat
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queries the server for the current state of DetectableAutoRepeat and waits for a
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reply. If
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.I supported_rtrn
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is not NULL, it backfills
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.I supported_rtrn
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with True if the server supports DetectableAutoRepeat, and False otherwise.
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.I XkbGetDetectableAutoRepeat
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returns the current state of DetectableAutoRepeat for the requesting client:
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True if DetectableAutoRepeat is set, and False otherwise.
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.SH "RETURN VALUES"
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.TP 15
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True
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The
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.I XkbGetDetectableAutoRepeat
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function returns True if the server supports DetectableAutoRepeat.
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.TP 15
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False
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The
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.I XkbGetDetectableAutoRepeat
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function returns False if the server does not support DetectableAutoRepeat.
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