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'\" t
.\" Title: xchangepointerdevice
.\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\" Date: 05/04/2023
.\" Manual: \ \&
.\" Source: \ \&
.\" Language: English
.\"
.TH "XCHANGEPOINTERDEVICE" "libmansuffix" "05/04/2023" "\ \&" "\ \&"
.\" -----------------------------------------------------------------
.\" * 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"
XChangePointerDevice \- change which device is the X pointer
.SH "SYNOPSIS"
.sp
.nf
#include <X11/extensions/XInput\&.h>
.fi
.sp
.nf
Status XChangePointerDevice( Display *display,
XDevice *device,
int xaxis,
int yaxis);
.fi
.sp
.nf
display
Specifies the connection to the X server\&.
.fi
.sp
.nf
device
Specifies the device to be used as the X pointer\&.
.fi
.sp
.nf
xaxis
Specifies the axis of the device to be used as the X
pointer x\-axis\&.
.fi
.sp
.nf
yaxis
Specifies the axis of the device to be used as the X
pointer y\-axis\&.
.fi
.SH "DESCRIPTION"
.sp
.if n \{\
.RS 4
.\}
.nf
The XChangePointerDevice request causes the server to use the
specified device as the X pointer\&. The device must have been
opened by the client via XOpenDevice or a BadDevice error will
result\&. The device must support input class Valuators or a
BadMatch error will result\&. If the implementation does not
support use of the specified device as the X pointer, a
BadDevice error will result\&.
.fi
.if n \{\
.RE
.\}
.sp
.if n \{\
.RS 4
.\}
.nf
If the specified device is grabbed by another client,
AlreadyGrabbed is returned\&. If the specified device is frozen
by a grab on another device, GrabFrozen is returned\&. If the
request is successful, Success is returned\&.
.fi
.if n \{\
.RE
.\}
.sp
.if n \{\
.RS 4
.\}
.nf
If the request succeeds, a ChangeDeviceNotify event is sent to
all clients that have selected that event\&. A MappingNotify
event with request = MappingPointer is sent to all clients\&. The
specified device becomes the X pointer, and the old X pointer
becomes accessible through the input extension protocol
requests\&.
.fi
.if n \{\
.RE
.\}
.sp
.if n \{\
.RS 4
.\}
.nf
XChangePointerDevice can generate a BadDevice or a BadMatch
error\&.
.fi
.if n \{\
.RE
.\}
.SH "DIAGNOSTICS"
.sp
.if n \{\
.RS 4
.\}
.nf
BadDevice
An invalid device was specified\&. The specified device
does not exist, has not been opened by this client via
XOpenInputDevice, or is already one of the core X input
devices (pointer or keyboard)\&. This error may also occur
if the server implementation does not support using the
specified device as the X pointer\&.
.fi
.if n \{\
.RE
.\}
.sp
.if n \{\
.RS 4
.\}
.nf
BadMatch
This error may occur if an XChangePointerDevice request
was made specifying a device that has less than two
valuators, or specifying a valuator index beyond the
range supported by the device\&.
.fi
.if n \{\
.RE
.\}
.SH "SEE ALSO"
.sp
.if n \{\
.RS 4
.\}
.nf
XChangeKeyboardDevice(libmansuffix)
.fi
.if n \{\
.RE
.\}
|
