GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 7.3.0(Wheezy) |
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XkbGetAccessXTimeout(3) |
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XkbGetAccessXTimeout − Queries the current AccessXTimeout options for a keyboard device
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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);
− 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
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.
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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. | ||
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False |
The XkbGetAccessXTimeout funtion returns False if a compatible version of the Xkb extension is not available in the server. |
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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XkbGetAccessXTimeout(3) | |