osf1 man page for xchangepointercontrol

XChangePointerControl(3X11)											       XChangePointerControl(3X11)

NAME
       XChangePointerControl, XGetPointerControl - control pointer

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

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

ARGUMENTS
       Specifies the denominator for the acceleration multiplier.  Returns the denominator for the acceleration multiplier.  Specifies the numera-
       tor for the acceleration multiplier.  Returns the numerator for the acceleration multiplier.  Specifies the connection  to  the	X  server.
       Specifies  a  Boolean  value  that  controls whether the values for the accel_numerator or accel_denominator are used.  Specifies a Boolean
       value that controls whether the value for the threshold is used.  Specifies the acceleration threshold.	Returns the  acceleration  thresh-
       old.

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 acceleration multiplier and acceleration threshold.

DIAGNOSTICS
       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

														       XChangePointerControl(3X11)