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XkbGetDeviceLedInfo(3)           XKB FUNCTIONS          XkbGetDeviceLedInfo(3)

       XkbGetDeviceLedInfo  - Query the indicator names, maps, and state asso-
       ciated with an LED feedback of an input extension device

       Status XkbGetDeviceLedInfo ( dpy, device_info, led_class, led_id, which
             Display * dpy;
             XkbDeviceInfoPtr device_info;
             unsigned int led_class;
             unsigned int led_id;
             unsigned int which;

       - dpy  connection to X server

       - device_info
              structure to update with results

       - led_class
              LED feedback class assigned by input extension

       - led_id
              LED feedback ID assigned by input extension

       - which
              mask indicating desired information

       XkbGetDeviceLedInfo  queries the server for the desired LED information
       for the feedback specified by led_class and  led_id  for  the  X  input
       extension  device indicated by device_spec->device_info and waits for a
       reply. If successful, XkbGetDeviceLedInfo backfills the relevant fields
       of device_info as determined by which with the results and returns Suc-
       cess. Valid values for which are the inclusive OR of any of XkbXI_Indi-
       catorNamesMask, XkbXI_IndicatorMapsMask, and XkbXI_IndicatorStateMask.

       The fields of device_info that are filled in when this request succeeds
       are name, type, supported, and unsupported, and portions  of  the  leds
       structure  corresponding  to  led_class  and led_id as indicated by the
       bits set in which.  The device_info->leds vector is allocated if neces-
       sary  and  sz_leds  and  num_leds  filled in. The led_class, led_id and
       phys_indicators fields of the device_info->leds entry corresponding  to
       led_class and led_id are always filled in.

       If which contains XkbXI_IndicatorNamesMask, the names_present and names
       fields of the device_info->leds structure  corresponding  to  led_class
       and led_id are updated, if which contains XkbXI_IndicatorStateMask, the
       corresponding state field is updated, and if which contains XkbXI_Indi-
       catorMapsMask, the maps_present and maps fields are updated.

       If  a  compatible  version of Xkb is not available in the server or the
       Xkb extension has not been  properly  initialized,  XkbGetDeviceLedInfo
       returns  BadAccess.  If  allocation  errors occur, a BadAlloc status is
       returned. If  the  device  has  no  indicators,  a  BadMatch  error  is
       returned. If ledClass or ledID have illegal values, a BadValue error is
       returned. If they have legal values but do not specify a feedback  that
       contains  LEDs  and is associated with the specified device, a BadMatch
       error is returned.

       BadAccess      The Xkb extension has not been properly initialized

       BadAlloc       Unable to allocate storage

       BadMatch       A compatible version of Xkb was  not  available  in  the
                      server or an argument has correct type and range, but is
                      otherwise invalid

       BadValue       An argument is out of range

X Version 11                     libX11 1.1.5           XkbGetDeviceLedInfo(3)