XChangePointerDevice(3) X FUNCTIONS XChangePointerDevice(3)
NAME
XChangePointerDevice - change which device is the X pointer
SYNTAX
Status XChangePointerDevice(Display *display, XDevice *device, int
xaxis, int yaxis);
ARGUMENTS
display Specifies the connection to the X server.
device Specifies the device to be used as the X pointer.
xaxis Specifies the axis of the device to be used as the X
pointer x-axis.
yaxis Specifies the axis of the device to be used as the X
pointer y-axis.
DESCRIPTION
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.
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.
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.
XChangePointerDevice can generate a BadDevice or a BadMatch error.
DIAGNOSTICS
BadDevice An invalid device was specified. The specified device does
not exist, has not been opened by this client via XOpenIn-
putDevice, 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.
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.
SEE ALSO
XChangeKeyboardDevice(3)
Programming With Xlib
X Version 11 libXi 1.2.1 XChangePointerDevice(3)
Mac OS X 10.6 X11 - Generated Sun Mar 7 12:30:05 CST 2010