164 lines
3.9 KiB
Groff
164 lines
3.9 KiB
Groff
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'\" t
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.\" Title: xchangepointerdevice
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.\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 05/04/2023
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.\" Manual: \ \&
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.\" Source: \ \&
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.\" Language: English
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.\"
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.TH "XCHANGEPOINTERDEVICE" "libmansuffix" "05/04/2023" "\ \&" "\ \&"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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XChangePointerDevice \- change which device is the X pointer
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.SH "SYNOPSIS"
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.sp
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.nf
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#include <X11/extensions/XInput\&.h>
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.fi
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.sp
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.nf
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Status XChangePointerDevice( Display *display,
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XDevice *device,
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int xaxis,
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int yaxis);
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.fi
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.sp
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.nf
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display
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Specifies the connection to the X server\&.
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.fi
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.sp
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.nf
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device
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Specifies the device to be used as the X pointer\&.
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.fi
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.sp
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.nf
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xaxis
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Specifies the axis of the device to be used as the X
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pointer x\-axis\&.
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.fi
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.sp
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.nf
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yaxis
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Specifies the axis of the device to be used as the X
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pointer y\-axis\&.
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.fi
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.SH "DESCRIPTION"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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The XChangePointerDevice request causes the server to use the
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specified device as the X pointer\&. The device must have been
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opened by the client via XOpenDevice or a BadDevice error will
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result\&. The device must support input class Valuators or a
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BadMatch error will result\&. If the implementation does not
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support use of the specified device as the X pointer, a
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BadDevice error will result\&.
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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If the specified device is grabbed by another client,
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AlreadyGrabbed is returned\&. If the specified device is frozen
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by a grab on another device, GrabFrozen is returned\&. If the
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request is successful, Success is returned\&.
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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If the request succeeds, a ChangeDeviceNotify event is sent to
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all clients that have selected that event\&. A MappingNotify
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event with request = MappingPointer is sent to all clients\&. The
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specified device becomes the X pointer, and the old X pointer
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becomes accessible through the input extension protocol
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requests\&.
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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XChangePointerDevice can generate a BadDevice or a BadMatch
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error\&.
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.fi
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.if n \{\
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.RE
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.\}
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.SH "DIAGNOSTICS"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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BadDevice
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An invalid device was specified\&. The specified device
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does not exist, has not been opened by this client via
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XOpenInputDevice, or is already one of the core X input
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devices (pointer or keyboard)\&. This error may also occur
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if the server implementation does not support using the
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specified device as the X pointer\&.
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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BadMatch
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This error may occur if an XChangePointerDevice request
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was made specifying a device that has less than two
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valuators, or specifying a valuator index beyond the
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range supported by the device\&.
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.fi
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.if n \{\
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.RE
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.\}
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.SH "SEE ALSO"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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XChangeKeyboardDevice(libmansuffix)
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.fi
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.if n \{\
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.RE
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.\}
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