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X11R7.4 - man page for xkbsetcontrols (x11r4 section 3)

XkbSetControls(3)			  XKB FUNCTIONS 			XkbSetControls(3)

       XkbSetControls  -  Copies changes to the X server based on a modified ctrls structure in a
       local copy of the keyboard description

       Bool XkbSetControls ( display, which, xkb )
	     Display *display;
	     unsigned long which;
	     XkbDescPtr xkb;

       - display
	      connection to X server

       - which
	      mask of controls requested

       - xkb  keyboard description for controls information

       For each bit that is set in the which parameter, XkbSetControls	sends  the  corresponding
       values from the xkb->ctrls field to the server. 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 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 |
       XkbAllBooleanCtrlsMask			ok	  (0x00001FFF)
       XkbAllControlsMask	ok			  (0xF8001FFF)

       If xkb->ctrls is NULL, the server does not support a compatible version of Xkb, or the Xkb
       extension has not been properly initialized, XkbSetControls returns False.  Otherwise,  it
       sends the request to the X server and returns True.

       Note  that  changes to attributes of controls in the XkbControlsRec structure are apparent
       only when the associated control is enabled, although the corresponding values  are  still
       updated	in  the  X  server.  For example, the repeat_delay and repeat_interval fields are
       ignored unless the RepeatKeys control is enabled (that is, the X  server's  equivalent  of
       xkb->ctrls  has	XkbRepeatKeyMask  set in enabled_ctrls).  It is permissible to modify the
       attributes of a control in one call to XkbSetControls and enable the control in	a  subse-
       quent  call.  See  XkbChangeEnabledControls for more information on enabling and disabling

       Note that the enabled_ctrls field is itself a control - the  EnabledControls  control.  As
       such,  to  set a specific configuration of enabled and disabled boolean controls, you must
       set enabled_ctrls to the appropriate bits to enable only the controls you want and disable
       all others, then specify the XkbControlsEnabledMask in a call to XkbSetControls.

       Because this is somewhat awkward if all you want to do is enable and disable controls, and
       not modify any of their attributes, a convenience function is also provided for this  pur-
       pose, XkbChangeEnabledControls.

       True	      The XkbSetControls function returns True when it sends the request to the X

       False	      The XkbSetControls function returns False  when  xkb->ctrls  is  NULL,  the
		      server  does  not support a compatible version of Xkb, or the Xkb extension
		      has not been properly initialized.

       BadAlloc       Unable to allocate storage

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

       XkbChangeEnabledControls(3), XkbFreeControls(3)

X Version 11				   libX11 1.2.1 			XkbSetControls(3)

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