380 lines
8.9 KiB
Groff
380 lines
8.9 KiB
Groff
'\" t
|
|
.\" Title: xigrabenter
|
|
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
|
|
.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
|
|
.\" Date: 12/21/2011
|
|
.\" Manual: [FIXME: manual]
|
|
.\" Source: [FIXME: source]
|
|
.\" Language: English
|
|
.\"
|
|
.TH "XIGRABENTER" "libmansuffix" "12/21/2011" "[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"
|
|
XIGrabEnter, XIUngrabEnter, XIGrabFocusIn, XIUngrabFocusIn \- grab/ungrab enter or focus in events\&.
|
|
.SH "SYNOPSIS"
|
|
.sp
|
|
.nf
|
|
#include <X11/extensions/XInput\&.h>
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int XIGrabEnter( Display *display,
|
|
int deviceid,
|
|
Window grab_window,
|
|
Cursor cursor,
|
|
int grab_mode,
|
|
int paired_device_mode,
|
|
Bool owner_events,
|
|
XIEventMask *mask,
|
|
int num_modifiers,
|
|
XIGrabModifiers *modifiers_inout);
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int XIUngrabEnter( Display *display,
|
|
int deviceid,
|
|
Window grab_window
|
|
int num_modifiers,
|
|
XIGrabModifiers *modifiers);
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int XIGrabFocusIn ( Display *display,
|
|
int deviceid,
|
|
Window grab_window
|
|
int grab_mode,
|
|
int paired_device_mode,
|
|
Bool owner_events,
|
|
XIEventMask *mask,
|
|
int num_modifiers,
|
|
XIGrabModifiers *modifiers_inout);
|
|
.fi
|
|
.sp
|
|
.nf
|
|
int XIUngrabFocusIn( Display *display,
|
|
int deviceid,
|
|
Window grab_window
|
|
int num_modifiers,
|
|
XIGrabModifiers *modifiers);
|
|
display
|
|
Specifies the connection to the X server\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
device
|
|
Specifies the device that is to be grabbed or released
|
|
.fi
|
|
.sp
|
|
.nf
|
|
num_modifiers
|
|
Number of elements in modifiers or modifiers_inout\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
modifiers
|
|
Specifies the set of latched and base modifiers or
|
|
XIAnyModifier to ungrab\&. The data type is for
|
|
consistency with the respective grab request and the
|
|
status code of the XIGrabModifiers struct is ignored\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
modifiers_inout
|
|
Specifies the set of latched and base modifiers or
|
|
XIAnyModifier to grab\&. Returns the modifiers that could
|
|
not be grabbed and their status code\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
grab_window
|
|
Specifies the grab window\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
owner_events
|
|
Specifies a Boolean value that indicates whether the are
|
|
to be reported as usual or reported with respect to the
|
|
grab window\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
mask
|
|
Specifies the event mask\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
grab_mode
|
|
Specifies further processing of events from this device\&.
|
|
You can pass XIGrabModeSync or XIGrabModeAsync\&.
|
|
.fi
|
|
.sp
|
|
.nf
|
|
paired_device_mode
|
|
Specifies further processing of events from the paired
|
|
master device\&. You can pass XIGrabModeSync or
|
|
XIGrabModeAsync\&. If deviceid specifies a floating slave
|
|
device, this parameter is ignored\&.
|
|
.fi
|
|
.SH "DESCRIPTION"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XIGrabEnter and XIGrabFocusIn establish a passive grab\&. The
|
|
modifier device for a enter grab is the paired master device if
|
|
deviceid specifies a master pointer\&. Otherwise, the modifier
|
|
device is the device specified with deviceid\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
For XIGrabEnter and XIGrabFocusIn, in the future, the device is
|
|
actively grabbed (as for XIGrabDevice, the last\-grab time is
|
|
set to the time at which the pointer/focus entered window) if
|
|
the device is not grabbed and the pointer has entered the
|
|
grab_window or the focus has been set to the grab_window when
|
|
the specified modifier keys are logically down on the modifier
|
|
device and no other buttons or modifier keys are logically
|
|
down\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
The interpretation of the remaining arguments is as for
|
|
XIGrabDevice\&. The active grab is terminated automatically when
|
|
the pointer leaves the window or the focus is set to a
|
|
different window (independent of the logical state of the
|
|
modifier keys)\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
If the device is an attached slave device, the device is
|
|
automatically detached from the master device when the grab
|
|
activates and reattached to the same master device when the
|
|
grab deactivates\&. If the master device is removed while the
|
|
device is floating as a result of a grab, the device remains
|
|
floating once the grab deactivates\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
Note that the logical state of a device (as seen by client
|
|
applications) may lag the physical state if device event
|
|
processing is frozen\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
This request overrides all previous grabs by the same client of
|
|
the same type and modifier combinations on the same window\&. A
|
|
modifiers of XIAnyModifier is equivalent to issuing the grab
|
|
request for all possible modifier combinations (including the
|
|
combination of no modifiers)\&. It is not required that all
|
|
modifiers specified have currently assigned KeyCodes\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
If some other client has already issued a XIGrabEnter or
|
|
XIGrabFocusIn on the same window, a BadAccess error results\&.
|
|
When using XIAnyModifier, the request fails completely, and a
|
|
XIBadAccess error results (no grabs are established) if there
|
|
is a conflicting grab for any combination\&. XIGrabEnter and
|
|
XIGrabFocusin have no effect on an active grab\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
On success, XIGrabEnter and XIGrabFocusIn return 0;
|
|
If one or more modifier combinations could not be grabbed,
|
|
XIGrabEnter and XIGrabFocusIn return the number of failed
|
|
combinations and modifiers_inout contains the failed combinations
|
|
and their respective status codes\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XIGrabEnter and XIGrabFocusIn can generate BadDevice,
|
|
BadMatch, BadValue, and BadWindow errors\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XIUngrabEnter and XIUngrabFocusIn releases the passive grab on
|
|
the specified window if it was grabbed by this client\&. A
|
|
modifier of XIAnyModifier is equivalent to issuing the ungrab
|
|
request for all possible modifier combinations, including the
|
|
combination of no modifiers\&. XIUngrabEnter and XIUngrabFocusIn
|
|
have no effect on an active grab\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XIUngrabEnter and XIUngrabFocusIn can generate BadDevice,
|
|
BadMatch, BadValue and BadWindow errors\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.SH "RETURN VALUE"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XIGrabEnter and XIGrabFocusIn return the number of modifier combination
|
|
that could not establish a passive grab\&. The modifiers are returned in
|
|
modifiers_inout, along with the respective error for this modifier
|
|
combination\&. If XIGrabEnter or XIGrabFocusIn return zero, passive grabs
|
|
with all requested modifier combinations were established successfully\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.SH "DIAGNOSTICS"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
BadDevice
|
|
An invalid deviceid was specified\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
BadMatch
|
|
This error may occur if XIGrabEnter specified a device
|
|
that has no valuators, or XIGrabFocusIn specified a device
|
|
that has no keys\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
BadValue
|
|
Some numeric value falls outside the range of values
|
|
accepted by the request\&. Unless a specific range is
|
|
specified for an argument, the full range defined by the
|
|
argument\*(Aqs type is accepted\&. Any argument defined as a
|
|
set of alternatives can generate this error\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
BadWindow
|
|
A value for a Window argument does not name a defined
|
|
Window\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.SH "BUGS"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
The protocol headers for XI 2\&.0 did not provide
|
|
XIGrabModeAsync or XIGrabModeSync\&. Use GrabModeSync and
|
|
GrabModeAsync instead, respectively\&.
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.SH "SEE ALSO"
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
XIAllowEvents(libmansuffix)
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|