NAME
XkbGetIndicatorState - Obtains the current state of the keyboard
indicators
SYNOPSIS
Status XkbGetIndicatorState (Display *display, unsigned int
device_spec, unsigned int state_return);
ARGUMENTS
- display
connection to the X server
- device_spec
device ID, or XkbUseCoreKbd
- state_return
backfilled with a mask of the indicator state
DESCRIPTION
Xkb allows applications to obtain information about indicators using
two different methods. The first method, which is similar to the core X
implementation, uses a mask to specify the indicators. The second
method, which is more suitable for applications concerned with
interoperability, uses indicator names. The correspondence between the
indicator name and the bit position in masks is as follows: one of the
parameters returned from XkbGetNamedIndicators is an index that is the
bit position to use in any function call that requires a mask of
indicator bits, as well as the indicator’s index into the
XkbIndicatorRec array of indicator maps.
XkbGetIndicatorState queries the display for the state of the
indicators on the device specified by the device_spec. For each
indicator that is "turned on" on the device, the associated bit is set
in state_return. If a compatible version of the Xkb extension is not
available in the server, XkbGetIndicatorState returns a BadMatch error.
Otherwise, it sends the request to the X server, places the state of
the indicators into state_return, and returns Success. Thus the value
reported by XkbGetIndicatorState is identical to the value reported by
the core protocol.
DIAGNOSTICS
BadMatch A compatible version of Xkb was not available in the
server or an argument has correct type and range, but is
otherwise invalid
SEE ALSO
XkbGetNamedIndicators(3)