bionic (3) XkbFreeControls.3.gz

Provided by: libx11-doc_1.6.4-3ubuntu0.4_all bug

NAME

       XkbFreeControls - Frees memory used by the ctrls member of an XkbDescRec structure

SYNOPSIS

       void XkbFreeControls (XkbDescPtr xkb, unsigned int which, Bool free_all);

ARGUMENTS

       - xkb  Xkb description in which to free controls components

       - which
              mask of components of ctrls to free

       - free_all
              True => free everything + ctrls itself

DESCRIPTION

       XkbFreeControls  frees  the  specified  components of the ctrls field in the xkb keyboard description and
       sets the corresponding structure component values to NULL or zero. The which mask specifies the fields of
       ctrls to be freed and can contain any of the controls components specified in Table 1.

       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  the  table  (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 free_all is True, XkbFreeControls frees every non-NULL structure component in the controls, frees  the
       XkbControlsRec structure referenced by the ctrls member of xkb, and sets ctrls to NULL.