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.\"     Title: xsendextensionevent
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 09/15/2021
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "XSENDEXTENSIONEVENT" "libmansuffix" "09/15/2021" "\ \&" "\ \&"
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.SH "NAME"
XSendExtensionEvent \- send input extension events to a client
.SH "SYNOPSIS"
.sp
.nf
#include <X11/extensions/XInput\&.h>
.fi
.sp
.nf
Status XSendExtensionEvent( Display *display,
                            XDevice *device,
                            Window destination,
                            Bool propagate,
                            int event_count,
                            XEventClass *event_list,
                            XEvent *event_send);
.fi
.sp
.nf
display
       Specifies the connection to the X server\&.
.fi
.sp
.nf
device
       Specifies the device from which the events are to be
       sent\&.
.fi
.sp
.nf
destination
       Specifies the window the event is to be sent to\&. You can
       pass window id, PointerWindow, or InputFocus\&.
.fi
.sp
.nf
propagate
       Specifies a Boolean value that is either True or False\&.
.fi
.sp
.nf
event_count
       Specifies the count of XEventClasses in event_list\&.
.fi
.sp
.nf
event_list
       Specifies the list of event selections to be used\&.
.fi
.sp
.nf
event_send
       Specifies a pointer to the event that is to be sent\&.
.fi
.SH "DESCRIPTION"
.sp
.if n \{\
.RS 4
.\}
.nf
The XSendExtensionEvent request identifies the destination
window, determines which clients should receive the specified
events, and ignores any active grabs\&. This request requires you
to pass an event class list\&. For a discussion of the valid
event class names, see XOpenDevice(libmansuffix) This
request uses the w argument to identify the destination window
as follows:
  * If w is PointerWindow, the destination window is the window
    that contains the pointer\&.
  * If w is InputFocus and if the focus window contains the
    pointer, the destination window is the window that contains
    the pointer; otherwise, the destination window is the focus
    window\&.
.fi
.if n \{\
.RE
.\}
.sp
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.RS 4
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.nf
To determine which clients should receive the specified events,
XSendExtensionEvent uses the propagate argument as follows:
  * If event_list is the empty set, the event is sent to the
    client that created the destination window\&. If that client
    no longer exists, no event is sent\&.
  * If propagate is False, the event is sent to every client
    selecting on destination any of the event types specified by
    the event_list array\&.
  * If propagate is True and no clients have selected on
    destination any of the events specified by the event_list
    array, the destination is replaced with the closest ancestor
    of destination for which some client has selected a type
    specified by the event\-list array and for which no
    intervening window has that type in
    its do\-not\-propagate\-mask\&. If no such window exists or if
    the window is an ancestor of the focus window and
    InputFocus was originally specified as the destination, the
    event is not sent to any clients\&. Otherwise, the event is
    reported to every client selecting on the final destination
    any of the events specified in the event_list array\&.
.fi
.if n \{\
.RE
.\}
.sp
.if n \{\
.RS 4
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.nf
The event in the XEvent structure must be one of the events
defined by the input extension (or a BadValue error results) so
that the X server can correctly byte\-swap the contents as
necessary\&. The contents of the event are otherwise unaltered and
unchecked by the X server except to force send_event to True in
the forwarded event and to set the serial number in the event
correctly\&.
.fi
.if n \{\
.RE
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.sp
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.RS 4
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.nf
XSendExtensionEvent returns zero if the conversion to wire
protocol format failed and returns nonzero
otherwise\&. XSendExtensionEvent can generate BadClass, BadDevice,
BadValue, and BadWindow errors\&.
.fi
.if n \{\
.RE
.\}
.SH "DIAGNOSTICS"
.sp
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.RS 4
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.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
       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
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.RS 4
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.nf
BadWindow
       A value for a Window argument does not name a defined
       window\&.
.fi
.if n \{\
.RE
.\}