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

XkbSetBounceKeysDelay(3)		  XKB FUNCTIONS 		 XkbSetBounceKeysDelay(3)

NAME
       XkbSetBounceKeysDelay - Sets the BounceKeys delay for a keyboard device

SYNOPSIS
       Bool XkbSetBounceKeysDelay ( display, device_spec, delay )
	     Display *display;
	     unsigned int device_spec;
	     unsigned int *delay;

ARGUMENTS
       - display
	      connection to X server

       - device_spec
	      device ID, or XkbUseCoreKbd

       - delay
	      backfilled with bounce keys delay, ms

DESCRIPTION
       The  server can generate XkbAccessXNotify events for some of the global keyboard controls.
       The detail field describes what AccessX event just occurred and can be any of  the  values
       in Table 1.

		       Table 1 AccessXNotify Events
       -------------------------------------------------------------
       detail		   Reason
       -------------------------------------------------------------
       XkbAXN_SKPress	   A  key  was	pressed  when  SlowKeys was
			   enabled.
       XkbAXN_SKAccept	   A key was accepted (held longer than the
			   SlowKeys delay).
       XkbAXN_SKRelease    An accepted SlowKeys key was released.
       XkbAXN_SKReject	   A  key was rejected (released before the
			   SlowKeys delay expired).
       XkbAXN_BKAccept	   A key was accepted by BounceKeys.
       XkbAXN_BKReject	   A key was rejected (pressed	before	the
			   BounceKeys delay expired).
       XkbAXN_AXKWarning   AccessXKeys	is  about  to  turn  on/off
			   StickyKeys or BounceKeys.

       The keycode field reports the keycode of the key for which  the	event  occurred.  If  the
       action  is  related  to	SlowKeys,  the	slowKeysDelay field contains the current SlowKeys
       acceptance delay. If the action is related to BounceKeys, the debounceDelay field contains
       the current BounceKeys debounce delay.

       Selecting for AccessX Events

       To  receive XkbAccessXNotify events under all possible conditions, use XkbSelectEvents and
       pass XkbAccesXNotifyMask in both bits_to_change and values_for_bits.

       To receive XkbStateNotify events only under certain conditions, use  XkbSelectEventDetails
       using  XkbAccessXNotify	as  the  event_type  and  specifying the desired state changes in
       bits_to_change and values_for_bits using mask bits from Table 2.

			 Table 2 AccessXNotify Event Details
       -------------------------------------------------------------------------
       XkbAccessXNotify Event Details	Value	 Circumstances
       -------------------------------------------------------------------------

       XkbAXN_SKPressMask		(1<<0)	 Slow  key  press  notification
						 wanted
       XkbAXN_SKAcceptMask		(1<<1)	 Slow  key  accept notification
						 wanted
       XkbAXN_SKRejectMask		(1<<2)	 Slow key  reject  notification
						 wanted
       XkbAXN_SKReleaseMask		(1<<3)	 Slow  key release notification
						 wanted
       XkbAXN_BKAcceptMask		(1<<4)	 Bounce key accept notification
						 wanted
       XkbAXN_BKRejectMask		(1<<5)	 Bounce key reject notification
						 wanted
       XkbAXN_AXKWarningMask		(1<<6)	 AccessX  warning  notification
						 wanted
       XkbAXN_AllEventsMask		(0x7f)	 All AccessX features notifica-
						 tions wanted

       Some users may accidentally "bounce" on a key when they release it. They  press	it  once,
       then accidentally press it again after they release it. The BounceKeys control temporarily
       disables a key after it has been  pressed,  effectively	"debouncing"  the  keyboard.  The
       period  of time the key is disabled after it is released is known as the BounceKeys delay.
       BounceKeys is a boolean control.

       When the BounceKeys control is active, the server reports acceptance or rejection  of  any
       key to interested clients by sending an appropriate AccessXNotify event.

       XkbSetBounceKeysDelay  sends  a request to configure the BounceKeys control to the server.
       It does not wait for a reply and normally returns True. Specifying a value of zero for the
       delay  parameter  causes XkbSetBounceKeysDelay to generate a BadValue protocol error. If a
       compatible version of the Xkb extension is not available in the server,	XkbSetBounceKeys-
       Delay returns False.

RETURN VALUES
       True	      The  XkbSetBounceKeysDelay function returns True when it sends a request to
		      configure the BounceKeys control to the server.

       False	      The XkbSetBounceKeysDelay function returns False if a compatible version of
		      the Xkb extension is not available in the server.

STRUCTURES
       The structure for the XkbAccessXNotify event type is as follows:

       typedef struct {
	   int		  type; 	  /* Xkb extension base event code */
	   unsigned long  serial;	  /* X server serial number for event */
	   Bool 	  send_event;	  /* True => synthetically generated */
	   Display *	  display;	  /* server connection where event generated */
	   Time 	  time; 	  /* server time when event generated */
	   int		  xkb_type;	  /* XkbAccessXNotify */
	   int		  device;	  /* Xkb device ID, will not be XkbUseCoreKbd
       */
	   int		  detail;	  /* XkbAXN_* */
	   KeyCode	  keycode;	  /* key of event */
	   int		  slowKeysDelay;  /* current SlowKeys delay */
	   int		  debounceDelay;  /* current debounce delay */
       } XkbAccessXNotifyEvent;

DIAGNOSTICS
       BadValue       An argument is out of range

X Version 11				   libX11 1.2.1 		 XkbSetBounceKeysDelay(3)


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