xsetdevicevaluators(3x11) [redhat man page]

XSetDeviceValuators(3X11)					    X FUNCTIONS 					 XSetDeviceValuators(3X11)

NAME

       XSetDeviceValuators - initialize the valuators on an extension input device

SYNTAX

       XSetDeviceValuators(display, device, valuators, first_valuator, num_valuators)
	     Display *display;
	     XDevice *device;
	     int *valuators;
	     int first_valuator;
	     int num_valuators;

ARGUMENTS

       display	   Specifies the connection to the X server.

       device	   Specifies the device whose valuators are to be initialized.

       valuators   Specifies a pointer to an array of integer values to be used to initialize the device valuators.

       first_valuator
		   Specifies the first valuator to be set.  Valuators are numbered beginning with zero.

       num_valuators
		   Specifies the number of valuators to be set.

DESCRIPTION

       The  XSetDeviceValuators request sets the current values of the valuators of an input device.  The valuators in the range first_valuator to
       (first_valuator + num_valuators) are set to the specified values.  Valuators are numbered beginning with 0.  Not all input devices  support
       initialization  of  valuator  values.  If this request is made to a device that does not support valuators initialization, a BadMatch error
       will occur.

       If the request succeeds, a status of Success is returned.  If another client  has  the  device  grabbed,  a  status  of	AlreadyGrabbed	is
       returned.

       XSetDeviceValuators can generate a BadLength, BadDevice , BadMatch, or BadValue error.

DIAGNOSTICS

       BadDevice   An  invalid	device was specified.  The specified device does not exist or has not been opened by this client via XOpenInputDe-
		   vice.

       BadMatch    This error may occur if an XSetDeviceValuators request is made specifying a device that has no valuators and reports no axes of
		   motion, or if such a request is made specifying a device that does not support valuator initialization.

       BadValue    An invalid first_valuator or num_valuators values was specified.

SEE ALSO

       Programming with Xlib

X Version 11							    Release 6.6 					 XSetDeviceValuators(3X11)

XChangePointerDevice(3X11)					    X FUNCTIONS 					XChangePointerDevice(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 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 spec-
		   ifying a valuator index beyond the range supported by the device.

SEE ALSO

       XChangeKeyboardDevice
       Programming With Xlib

X Version 11							    Release 6.6 					XChangePointerDevice(3X11)