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XSETDEVICEVALUATORS(3)   XSETDEVICEVALUATORS(3)

NAME

XSetDeviceValuators - initialize the valuators on an extension input device

SYNOPSIS

#include <X11/extensions/XInput.h>

XSetDeviceValuators( Display *display,

XDevice *device,
int *valuators,
int first_valuator,
int num_valuators);

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
XOpenInputDevice.

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.
06/19/2019