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Man Pages


Manual Reference Pages  -  XISETCLIENTPOINTER (3)

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NAME

XISetClientPointer, XIGetClientPointer - set or get the ClientPointer device.

CONTENTS

SYNOPSIS

#include <X11/extensions/XInput2.h>

XISetClientPointer( Display *display,
                    Window win,
                    int deviceid);

Bool XIGetClientPointer( Display *display,
                         Window win,
                         int *device);

display
       Specifies the connection to the X server.

win
       Specifies a window belonging to the client. May be None.

deviceid
       Specifies the ClientPointer device.

DESCRIPTION

The ClientPointer is the device that is percieved to be the
core pointer for non-XI protocol requests and replies. Each
time a protocol message needs device-dependent data and the
device is not explicitly given, the ClientPointer device is
used to obtain the data. For example, a XQueryPointer request
will return the coordinates of the ClientPointer.

XISetClientPointer request sets the ClientPointer device for
the client that owns the given window. If win is None, the
requesting clients ClientPointer is set to the device
specified with deviceid. Only master pointer devices can be set
as ClientPointer.

XISetClientPointer and can generate a BadDevice and a BadWindow
error.

The XIGetClientPointer request returns the ClientPointers
device ID for the client that owns the given window. If win is
None, the requesting clients ClientPointer is returned.

win may be a client ID instead of a window.

XIGetClientPointer can generate a BadWindow error.

DIAGNOSTICS

BadDevice
       An invalid device was specified. The device does not
       exist or is not a master pointer device.

BadWindow
       A value for a Window argument does not name a defined
       window.

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& XISETCLIENTPOINTER (3) 03/09/2013

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