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Man Pages


Manual Reference Pages  -  XKBGETACCESSXTIMEOUT (3)

NAME

XkbGetAccessXTimeout - Queries the current AccessXTimeout options for a keyboard device

CONTENTS

Synopsis
Arguments
Description
Structures

SYNOPSIS

Bool XkbGetAccessXTimeout (Display *display, unsigned int device_spec, unsigned short *timeout_rtrn, unsigned int *ctrls_mask_rtrn, unsigned int *ctrls_values_rtrn, unsigned short *options_mask_rtrn, unsigned short *options_values_rtrn);    

ARGUMENTS

- display
  unsigned short
- device_spec
  device to query, or XkbUseCoreKbd
- timeout_rtrn
  delay until AccessXTimeout, seconds
- ctrls_mask_rtrn
  backfilled with controls to modify
- ctrls_values_rtrn
  backfilled with on/off status for controls
- options_mask_rtrn
  backfilled with ax_options to modify
- options_values_rtrn
  backfilled with values for ax_options

DESCRIPTION

In environments where computers are shared, features such as SlowKeys present a problem: if SlowKeys is on, the keyboard can appear to be unresponsive because keys are not accepted until they are held for a certain period of time. To help solve this problem, Xkb provides an AccessXTimeout control to automatically change the enabled/disabled state of any boolean controls and to change the value of the AccessXKeys and AccessXFeedback control attributes if the keyboard is idle for a specified period of time.

When a timeout as specified by AccessXTimeout occurs and a control is consequently modified, Xkb generates an XkbControlsNotify event.

XkbGetAccessXTimeout sends a request to the X server to obtain the current values for the AccessXTimeout attributes, waits for a reply, and backfills the values into the appropriate arguments. The parameters options_mask_rtrn and options_values_rtrn are backfilled with the options to modify and the values for ax_options, which is a field in the XkbControlsRec structure. XkbGetAccessXTimeout returns True if successful; if a compatible version of the Xkb extension is not available in the server, XkbGetAccessXTimeout returns False.

RETURN VALUES

True The XkbGetAccessXTimeout returns True when it successfully sends a request to the X server to obtain the current values for the AccessXTimeout attributes, waits for a reply, and backfills the values into the appropriate arguments.
False The XkbGetAccessXTimeout funtion returns False if a compatible version of the Xkb extension is not available in the server.

STRUCTURES

The XkbControlsRec structure is defined as follows:

#define XkbMaxLegalKeyCode 255 #define XkbPerKeyBitArraySize ((XkbMaxLegalKeyCode+1)/8) typedef struct { unsigned char mk_dflt_btn; /* default button for keyboard driven mouse */ unsigned char num_groups; /* number of keyboard groups */ unsigned char groups_wrap; /* how to wrap out-of-bounds groups */ XkbModsRec internal; /* defines server internal modifiers */ XkbModsRec ignore_lock; /* modifiers to ignore when checking for grab */ unsigned int enabled_ctrls; /* 1 bit => corresponding boolean control enabled */ unsigned short repeat_delay; /* ms delay until first repeat */ unsigned short repeat_interval; /* ms delay between repeats */ unsigned short slow_keys_delay; /* ms minimum time key must be down to be ok */ unsigned short debounce_delay; /* ms delay before key reactivated */ unsigned short mk_delay; /* ms delay to second mouse motion event */ unsigned short mk_interval; /* ms delay between repeat mouse events */ unsigned short mk_time_to_max; /* # intervals until constant mouse move */ unsigned short mk_max_speed; /* multiplier for maximum mouse speed */ short mk_curve; /* determines mouse move curve type */ unsigned short ax_options; /* 1 bit => Access X option enabled */ unsigned short ax_timeout; /* seconds until Access X disabled */ unsigned short axt_opts_mask; /* 1 bit => options to reset on Access X timeout */ unsigned short axt_opts_values; /* 1 bit => turn option on, 0=> off */ unsigned int axt_ctrls_mask; /* which bits in enabled_ctrls to modify */ unsigned int axt_ctrls_values; /* values for new bits in enabled_ctrls */ unsigned char per_key_repeat[XkbPerKeyBitArraySize]; /* per key auto repeat */ } XkbControlsRec, *XkbControlsPtr;

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X Version 11 XKBGETACCESSXTIMEOUT (3) libX11 1.6.3

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