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XChangePointerControl(3)	XLIB FUNCTIONS	      XChangePointerControl(3)

NAME
       XChangePointerControl, XGetPointerControl - control pointer

SYNTAX
       int   XChangePointerControl(Display   *display,	 Bool  do_accel,  Bool
	      do_threshold, int	accel_numerator,  int  accel_denominator,  int
	      threshold);

       int  XGetPointerControl(Display	*display, int *accel_numerator_return,
	      int *accel_denominator_return, int *threshold_return);

ARGUMENTS
       accel_denominator
		 Specifies the denominator for the acceleration	multiplier.

       accel_denominator_return
		 Returns the denominator for the acceleration multiplier.

       accel_numerator
		 Specifies the numerator for the acceleration multiplier.

       accel_numerator_return
		 Returns the numerator for the acceleration multiplier.

       display	 Specifies the connection to the X server.

       do_accel	 Specifies a Boolean value that	controls  whether  the	values
		 for the accel_numerator or accel_denominator are used.

       do_threshold
		 Specifies a Boolean value that	controls whether the value for
		 the threshold is used.

       threshold Specifies the acceleration threshold.

       threshold_return
		 Returns the acceleration threshold.

DESCRIPTION
       The XChangePointerControl function  defines  how	 the  pointing	device
       moves.	The acceleration, expressed as a fraction, is a	multiplier for
       movement.  For example, specifying 3/1 means the	 pointer  moves	 three
       times  as  fast	as normal.  The	fraction may be	rounded	arbitrarily by
       the X server.  Acceleration only	takes effect if	the pointer moves more
       than threshold pixels at	once and only applies to the amount beyond the
       value in	the threshold argument.	 Setting a value to  -1	 restores  the
       default.	 The values of the do_accel and	do_threshold arguments must be
       True for	the pointer values to be set, or the parameters	are unchanged.
       Negative	 values	 (other	 than -1) generate a BadValue error, as	does a
       zero value for the accel_denominator argument.

       XChangePointerControl can generate a BadValue error.

       The XGetPointerControl function returns the pointer's current accelera-
       tion multiplier and acceleration	threshold.

DIAGNOSTICS
       BadValue	 Some numeric value falls outside the range of values accepted
		 by the	request.  Unless a specific range is specified for  an
		 argument,  the	 full  range defined by	the argument's type is
		 accepted.  Any	argument defined as a set of alternatives  can
		 generate this error.

SEE ALSO
       Xlib - C	Language X Interface

X Version 11			 libX11	1.6.12	      XChangePointerControl(3)

NAME | SYNTAX | ARGUMENTS | DESCRIPTION | DIAGNOSTICS | SEE ALSO

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