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XkbGetNamedIndicator

Section: XKB FUNCTIONS (3)
Updated: libX11 1.6.3
Index Return to Main Contents
 

NAME

XkbGetNamedIndicator - Look up the indicator map and other information for an indicator by name  

SYNOPSIS

Bool XkbGetNamedIndicator (Display *dpy, unsigned int dev_spec, Atom name, int *ndx_rtrn, Bool *state_rtrn, XkbIndicatorMapPtr map_rtrn, Bool *real_rtrn);
     
 

ARGUMENTS

- dpy
connection to the X server
- dev_spec
keyboard device ID, or XkbUseCoreKbd
- name
name of the indicator to be retrieved
- ndx_rtrn
backfilled with the index of the retrieved indicator
- state_rtrn
backfilled with the current state of the retrieved indicator
- map_rtrn

 backfilled with the mapping for the retrieved indicator 
- real_rtrn
backfilled with True if the named indicator is real (physical)
 

DESCRIPTION

Xkb also allows applications to refer to indicators by name. Use XkbGetNames to get the indicator names. Using names eliminates the need for hard-coding bitmask values for particular keyboards. For example, instead of using vendor-specific constants such as WSKBLed_ScrollLock mask on Digital workstations or XLED_SCROLL_LOCK on Sun workstations, you can instead use XkbGetNamedIndicator to look up information on the indicator named "Scroll Lock."

If the device specified by device_spec has an indicator named name, XkbGetNamedIndicator returns True and populates the rest of the parameters with information about the indicator. Otherwise, XkbGetNamedIndicator returns False.

The ndx_rtrn field returns the zero-based index of the named indicator. This index 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. state_rtrn returns the current state of the named indicator (True = on, False = off). map_rtrn returns the indicator map for the named indicator. In addition, if the indicator is mapped to a physical LED, the real_rtrn parameter is set to True.

Each of the " _rtrn " arguments is optional; you can pass NULL for any unneeded " _rtrn " arguments.  

RETURN VALUES

True
The XkbGetNamedIndicator function returns True if the device specified by device_spec has an indicator named name.
False
The XkbGetNamedIndicator function returns False if the device specified by device_spec does not have an indicator named name.
 

SEE ALSO

XkbGetNames(3)


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
RETURN VALUES
SEE ALSO


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