XkbSetDebuggingFlags man page on QNX

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XkbSetDebuggingFlags(3)		 XKB FUNCTIONS	       XkbSetDebuggingFlags(3)

NAME
       XkbSetDebuggingFlags - Change the values of any of the debug controls

SYNOPSIS
       Bool   XkbSetDebuggingFlags   (Display  *display,  unsigned  int	 mask,
	      unsigned int flags, char *msg, unsigned int ctrls_mask, unsigned
	      int ctrls, unsigned int *ret_flags, unsigned int *ret_ctrls);

ARGUMENTS
       - display
	      connection to X server

       - mask mask selecting debug output flags to change

       - flags
	      values for debug output flags selected by mask

       - msg  message to print right now

       - ctrls_mask
	      mask selecting debug controls to change

       - ctrls
	      values for debug controls selected by ctrls_mask

       - ret_flags
	      resulting state of all debug output flags

       - ret_ctrls
	      resulting state of all debug controls

DESCRIPTION
       The  debugging  aids are intended for use primarily by Xkb implementors
       and are optional in any implementation.

       There are two bitmasks that may be used to control debugging. One  bit‐
       mask  controls  the output of debugging information, and the other con‐
       trols behavior.	Both bitmasks are initially all zeros.

       To change the values of any of the  debug  controls,  use  XkbSetDebug‐
       gingFlags.

       XkbSetDebuggingFlags  modifies  the  debug output flags as specified by
       mask and flags, modifies the  debug  controls  flags  as	 specified  by
       ctrls_mask  and	ctrls, prints the message msg, and backfills ret_flags
       and ret_ctrls with the resulting debug output and debug controls flags.

       When bits are set in the debug output masks, mask and flags, Xkb prints
       debug  information corresponding to each bit at appropriate points dur‐
       ing its processing. The device to which the output is written is imple‐
       mentation-dependent,  but is normally the same device to which X server
       error messages are directed; thus the bits that can be set in mask  and
       flags  is implementation-specific. To turn on a debug output selection,
       set the bit for the output in the mask parameter	 and  set  the	corre‐
       sponding bit in the flags parameter. To turn off event selection for an
       event, set the bit for the output in the mask parameter and do not  set
       the corresponding bit in the flags parameter.

       When  bits  are	set in the debug controls masks, ctrls_mask and ctrls,
       Xkb modifies its behavior according to each controls  bit.   ctrls_mask
       and  ctrls  are	related	 in  the same way that mask and flags are. The
       valid controls bits are defined in Table 1.

			   Table 1 Debug Control Masks
       ────────────────────────────────────────────────────────────────────
       Debug Control Mask   Value      Meaning
       ────────────────────────────────────────────────────────────────────
       XkbDF_DisableLocks   (1 << 0)   Disable actions that lock modifiers

       XkbSetDebuggingFlags returns True if successful	and  False  otherwise.
       The only protocol error it may generate is BadAlloc, if for some reason
       it is unable to allocate storage.

       XkbSetDebuggingFlags is intended for developer use and may be  disabled
       in production X servers. If it is disabled, XkbSetDebuggingFlags has no
       effect and does not generate any protocol errors.

       The message in msg is written immediately. The device to	 which	it  is
       written	is  implementation  dependent  but is normally the same device
       where X server error messages are directed.

RETURN VALUES
       True	      The XkbSetDebuggingFlags function returns True when suc‐
		      cessful.

       False	      The XkbSetDebuggingFlags function returns False when not
		      successful.

DIAGNOSTICS
       BadAlloc	      Unable to allocate storage

X Version 11			 libX11 1.3.5	       XkbSetDebuggingFlags(3)
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