179 lines
6.9 KiB
Groff
179 lines
6.9 KiB
Groff
'\" t
|
|
.\" Title: xallowdeviceevents
|
|
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
|
|
.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
|
|
.\" Date: 06/02/2011
|
|
.\" Manual: [FIXME: manual]
|
|
.\" Source: [FIXME: source]
|
|
.\" Language: English
|
|
.\"
|
|
.TH "XALLOWDEVICEEVENTS" "libmansuffix" "06/02/2011" "[FIXME: source]" "[FIXME: manual]"
|
|
.\" -----------------------------------------------------------------
|
|
.\" * Define some portability stuff
|
|
.\" -----------------------------------------------------------------
|
|
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
.\" http://bugs.debian.org/507673
|
|
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
|
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
.ie \n(.g .ds Aq \(aq
|
|
.el .ds Aq '
|
|
.\" -----------------------------------------------------------------
|
|
.\" * set default formatting
|
|
.\" -----------------------------------------------------------------
|
|
.\" disable hyphenation
|
|
.nh
|
|
.\" disable justification (adjust text to left margin only)
|
|
.ad l
|
|
.\" -----------------------------------------------------------------
|
|
.\" * MAIN CONTENT STARTS HERE *
|
|
.\" -----------------------------------------------------------------
|
|
.SH "NAME"
|
|
XAllowDeviceEvents \- release queued events
|
|
.SH "SYNOPSIS"
|
|
.sp
|
|
.nf
|
|
#include <X11/extensions/XInput\&.h>
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int XAllowDeviceEvents( Display *display,
|
|
XDevice *device,
|
|
int event_mode,
|
|
Time time);
|
|
display
|
|
Specifies the connection to the X server\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
device
|
|
Specifies the device from which events are to be
|
|
allowed\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
event_mode
|
|
Specifies the event mode\&.You can pass AsyncThisDevice,
|
|
SyncThisDevice, ReplayThisDevice, AsyncOtherDevices,
|
|
SyncAll,or AsyncAll\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
time
|
|
Specifies the time\&.You can pass either a timestamp or
|
|
CurrentTime\&.
|
|
.fi
|
|
.SH "DESCRIPTION"
|
|
.sp
|
|
The XAllowDeviceEvents function releases some queued events if the client has caused a device to freeze\&. It has no effect if the specified time is earlier than the last\-grab time of the most recent active grab for the client and device, or if the specified time is later than the current X server time\&.
|
|
.sp
|
|
The following describes the processing that occurs depending on what constant you pass to the event_mode argument\&.
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
AsyncThisDevice \- If the specified device is frozen by the client, event processing for that device continues as usual\&. If the device is frozen multiple times by the client on behalf of multiple separate grabs, AsyncThisDevice thaws for all\&.AsyncThisDevice has no effect if the specified device is not frozen by the client, but the device need not be grabbed by the client\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
SyncThisDevice \- If the specified device is frozen and actively grabbed by the client, event processing for that device continues normally until the next key or button event is reported to the client\&. At this time, the specified device again appears to freeze\&. However, if the reported event causes the grab to be released, the specified device does not freeze\&. SyncThisDevice has no effect if the specified device is not frozen by the client or is not grabbed by the client\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
ReplayThisDevice \- If the specified device is actively grabbed by the client and is frozen as the result of an event having been sent to the client (either from the activation of a GrabDeviceButton or from a previous AllowDeviceEvents with mode SyncThisDevice, but not from a GrabDevice), the grab is released and that event is completely reprocessed\&. This time, however, the request ignores any passive grabs at or above (toward the root) that the grab\-window of the grab just released\&. The request has no effect if the specified device is not grabbed by the client or if it is not frozen as the result of an event\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
AsyncOtherDevices \- If the remaining devices are frozen by the client, event processing for them continues as usual\&. If the other devices are frozen multiple times by the client on behalf of multiple grabs, AsyncOtherDevices "thaws" for all\&. AsyncOtherDevices has no effect if the devices are not frozen by the client\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
SyncAll \- If all devices are frozen by the client, event processing (for all devices) continues normally until the next button or key event is reported to the client for a grabbed device, at which time all devices again appear to freeze\&. However, if the reported event causes the grab to be released, then the devices do not freeze\&. If any device is still grabbed, then a subsequent event for it will still cause all devices to freeze\&. SyncAll has no effect unless all devices are frozen by the client\&. If any device is frozen twice by the client on behalf of two separate grabs, SyncAll thaws for both\&. A subsequent freeze for SyncAll will only freeze each device once\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
AsyncAll \- If all devices are frozen by the client, event processing for all devices continues normally\&. If any device is frozen multiple times by the client on behalf of multiple separate grabs, AsyncAll thaws for all\&. AsyncAll has no effect unless all devices are frozen by the client\&.
|
|
.RE
|
|
.sp
|
|
AsyncThisDevice, SyncThisDevice, and ReplayThisDevice have no effect on the processing of events from the remaining devices\&.AsyncOtherDevices has no effect on the processing of events from the specified device\&. When the event_mode is SyncAll or AsyncAll, the device parameter is ignored\&.
|
|
.sp
|
|
It is possible for several grabs of different devices by the same or different clients to be active simultaneously\&. If a device is frozen on behalf of any grab, no event processing is performed for the device\&. It is possible for a single device to be frozen because of several grabs\&. In this case, the freeze must be released on behalf of each grab before events can again be processed\&.
|
|
.sp
|
|
XAllowDeviceEvents can generate a BadDevice or BadValue error\&.
|
|
.SH "DIAGNOSTICS"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
BadDevice
|
|
An invalid device was specified\&. The specified device
|
|
does not exist or has not been opened by this client via
|
|
XOpenInputDevice\&. This error may also occur if the
|
|
specified device is the X keyboard or X pointer device\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
BadValue
|
|
An invalid mode was specified on the request\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.SH "SEE ALSO"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XGrabDevice(libmansuffix)
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|