XkbGetDeviceLedInfo(3)						   XKB FUNCTIONS					    XkbGetDeviceLedInfo(3)

NAME

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

SYNOPSIS

       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;

ARGUMENTS

       - 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

DESCRIPTION

       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 Success. Valid values for which are the inclusive OR of any of
       XkbXI_IndicatorNamesMask, 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
       necessary 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  con-
       tains XkbXI_IndicatorMapsMask, 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.

DIAGNOSTICS

       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 1.2.1 					    XkbGetDeviceLedInfo(3)