XkbGetControls - Finds the current state of Xkb server controls

display
              connection to X server

       which  mask of controls requested

       xkb    keyboard description for controls information

XkbGetControls  queries  the  server  for  the requested control information, waits for a reply, and then
       copies the server's values for the requested information into the ctrls structure of  the  xkb  argument.
       Only  those  components  specified  by  the  which  parameter  are copied. Valid values for which are any
       combination of the masks listed in Table 1 that have "ok" in the which column.

       Table 1 shows the actual values for the individual mask bits used to select controls for modification and
       to enable and disable the control. Note that the same mask bit is used to specify  general  modifications
       to  the  parameters  used  to  configure  the  control  (which),  and  to  enable and disable the control
       (enabled_ctrls). The anomalies in Table 1 (no "ok" in column) are for controls that have no  configurable
       attributes; and for controls that are not boolean controls and therefore cannot be enabled or disabled.

                               Table 1 Controls Mask Bits
       ───────────────────────────────────────────────────────────────────────────
       Mask Bit                 which or        enabled   Value
                                changed_ctrls   _ctrls
       ───────────────────────────────────────────────────────────────────────────
       XkbRepeatKeysMask        ok              ok        (1L<<0)
       XkbSlowKeysMask          ok              ok        (1L<<1)
       XkbBounceKeysMask        ok              ok        (1L<<2)
       XkbStickyKeysMask        ok              ok        (1L<<3)
       XkbMouseKeysMask         ok              ok        (1L<<4)
       XkbMouseKeysAccelMask    ok              ok        (1L<<5)
       XkbAccessXKeysMask       ok              ok        (1L<<6)
       XkbAccessXTimeoutMask    ok              ok        (1L<<7)
       XkbAccessXFeedbackMask   ok              ok        (1L<<8)
       XkbAudibleBellMask                       ok        (1L<<9)
       XkbOverlay1Mask                          ok        (1L<<10)
       XkbOverlay2Mask                          ok        (1L<<11)
       XkbIgnoreGroupLockMask                   ok        (1L<<12)
       XkbGroupsWrapMask        ok                        (1L<<27)
       XkbInternalModsMask      ok                        (1L<<28)
       XkbIgnoreLockModsMask    ok                        (1L<<29)
       XkbPerKeyRepeatMask      ok                        (1L<<30)
       XkbControlsEnabledMask   ok                        (1L<<31)
       XkbAccessXOptionsMask    ok              ok        (XkbStickyKeysMask |
                                                          XkbAccessXFeedbackMask)
       XkbAllBooleanCtrlsMask                   ok        (0x00001FFF)
       XkbAllControlsMask       ok                        (0xF8001FFF)

       If  xkb->ctrls is NULL, XkbGetControls allocates and initializes it before obtaining the values specified
       by which.  If xkb->ctrls  is  not  NULL,  XkbGetControls  modifies  only  those  portions  of  xkb->ctrls
       corresponding to the values specified by which.XkbGetControls  returns  Success  if  successful;  otherwise,  it  returns  BadAlloc  if it cannot obtain
       sufficient storage, BadMatch if xkb is NULL or which is empty, or BadImplementation.

       To free the ctrls member of a keyboard description, use XkbFreeControls.

       The num_groups field in the ctrls structure is always filled in by XkbGetControls,  regardless  of  which
       bits are selected by which.

BadAlloc       Unable to allocate storage

       BadImplementation
                      Invalid reply from server

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

       XkbGetControls - Finds the current state of Xkb server controls

       Success        The XkbGetControls function returns Success if successful.

XkbFreeControls(3)

X Version 11                                      libX11 1.8.12                                XkbGetControls(3)

StatusXkbGetControls(Display*display,unsignedlongwhich,XkbDescPtrxkb);