XChangePointerDeviceX3Version 11 (ReleaXChangePointerDevice(3X11)
NAME
XChangePointerDevice - change which device is the X pointer
SYNTAX
Status XChangePointerDevice(display, device xaxis, yaxis)
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 XOpenInputDevice, or is already
one of the core X input devices (pointer or
keyboard). This error may also occur if the
Page 1 (printed 7/20/06)
XChangePointerDeviceX3Version 11 (ReleaXChangePointerDevice(3X11)
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
Programming With Xlib
Page 2 (printed 7/20/06)
