XkbLockModifiers(3)		  XKB FUNCTIONS		     XkbLockModifiers(3)

NAME
     XkbLockModifiers  -  Locks and unlocks any of the eight real keyboard modi-
     fiers

SYNOPSIS
     Bool XkbLockModifiers (Display *display, unsigned int device_spec, unsigned
	    int affect, unsigned int values);

ARGUMENTS
     display
	    connection to the X server

     device_spec
	    device ID, or XkbUseCoreKbd

     affect
	    mask of real modifiers whose lock state is to change

     values
	    1 => lock, 0 => unlock; only for modifiers selected by affect

DESCRIPTION
     XkbLockModifiers sends a request to the server to lock the	 real  modifiers
     selected  by  both	 affect	 and values and to unlock the real modifiers se-
     lected by affect, but not selected by  values.  XkbLockModifiers  does  not
     wait  for a reply from the server. It returns True if the request was sent,
     and False otherwise.

     The functions in this section that change the use of modifiers use	 a  mask
     in the parameter affect. It is a bitwise inclusive OR of the legal modifier
     masks:

     c l l.  Table 1 Real Modifier Masks _ Mask _ ShiftMask LockMask ControlMask
     Mod1Mask Mod2Mask Mod3Mask Mod4Mask Mod5Mask

RETURN VALUES
     True	    The	 XkbLockModifiers  function returns True if a request is
		    sent to the server to lock the real	 modifiers  selected  by
		    both  affect and values and to unlock the real modifiers se-
		    lected by affect, but not selected by values.

     False	    The XkbLockModifiers function returns False if  the	 request
		    was not sent.

X Version 11			  libX11 1.8.13		     XkbLockModifiers(3)