---
name: "XSetDeviceValuators"
section: "3x"
platform: "linux"
package: "libxi-dev"
version: "4.3.0.dfsg.1-14sarge7"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/XSetDeviceValuators/3x"
---

# XSetDeviceValuators(3x)

initialize the valuators on an extension input device

## 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 *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.

## SEE ALSO

*Programming with Xlib*