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XkbSetDetectableAutoRepeat(3) XKB FUNCTIONS XkbSetDetectableAutoRepeat(3)
NAME
XkbSetDetectableAutoRepeat - Sets DetectableAutoRepeat
SYNOPSIS
Bool XkbSetDetectableAutoRepeat (Display *display, Bool detectable, Bool *supported_rtrn);
ARGUMENTS
- display
connection to X server
- detectable
True => set DetectableAutoRepeat
- supported_rtrn
backfilled True if DetectableAutoRepeat supported
DESCRIPTION
Auto-repeat is the generation of multiple key events by a keyboard when the user presses a
key and holds it down. Keyboard hardware and device-dependent X server software often
implement auto-repeat by generating multiple KeyPress events with no intervening KeyRe-
lease event. The standard behavior of the X server is to generate a KeyRelease event for
every KeyPress event. If the keyboard hardware and device-dependent software of the X
server implement auto-repeat by generating multiple KeyPress events, the device-indepen-
dent part of the X server by default synthetically generates a KeyRelease event after each
KeyPress event. This provides predictable behavior for X clients, but does not allow
those clients to detect the fact that a key is auto-repeating.
Xkb allows clients to request detectable auto-repeat. If a client requests and the server
supports DetectableAutoRepeat, Xkb generates KeyRelease events only when the key is physi-
cally released. If DetectableAutoRepeat is not supported or has not been requested, the
server synthesizes a KeyRelease event for each repeating KeyPress event it generates.
DetectableAutoRepeat, unlike other controls, is not contained in the XkbControlsRec struc-
ture, nor can it be enabled or disabled via the EnabledControls control. Instead, query
and set DetectableAutoRepeat using XkbGetDetectableAutoRepeat and XkbSetDetectableAutoRe-
peat.
DetectableAutoRepeat is a condition that applies to all keyboard devices for a client's
connection to a given X server; it cannot be selectively set for some devices and not for
others. For this reason, none of the Xkb library functions involving DetectableAutoRepeat
involve a device specifier.
This request affects all keyboard activity for the requesting client only; other clients
still see the expected nondetectable auto-repeat behavior, unless they have requested oth-
erwise.
XkbSetDetectableAutoRepeat sends a request to the server to set DetectableAutoRepeat on
for the current client if detectable is True, and off if detectable is False; it then
waits for a reply. If supported_rtrn is not NULL, XkbSetDetectableAutoRepeat backfills
supported_rtrn with True if the server supports DetectableAutoRepeat, and False if it does
not. XkbSetDetectableAutoRepeat returns the current state of DetectableAutoRepeat for the
requesting client: True if DetectableAutoRepeat is set, and False otherwise.
RETURN VALUES
True The XkbSetDetectableAutoRepeat function returns True if DetectableAutoRe-
peat is set.
False The XkbSetDetectableAutoRepeat function returns False if DetectableAutoRe-
peat is not set.
X Version 11 libX11 1.6.7 XkbSetDetectableAutoRepeat(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
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