bell(n) Tk Built-In Commands bell(n)
__________________________________________________________________________________________________________________________________________________NAME
bell - Ring a display's bell
SYNOPSIS
bell ?-displayof window? ?-nice?
_________________________________________________________________DESCRIPTION
This command rings the bell on the display for window and returns an empty string. If the -displayof option is omitted, the display of the
application's main window is used by default. The command uses the current bell-related settings for the display, which may be modified
with programs such as xset.
If -nice is not specified, this command also resets the screen saver for the screen. Some screen savers will ignore this, but others will
reset so that the screen becomes visible again.
KEYWORDS
beep, bell, ring
Tk 8.4 bell(n)
Check Out this Related Man Page
XDEVICEBELL(3)XDEVICEBELL(3)NAME
XDeviceBell - ring a bell on a device supported through the input extension
SYNOPSIS
#include <X11/extensions/XInput.h>
Status XDeviceBell( Display *display,
XDevice *device,
XID feedbackclass,
XID feedbackid,
int percent);
display
Specifies the connection to the X server.
device
Specifies the device with which the bell is associated.
feedbackclass
Specifies the class of the feedback with which the bell
is associated.
feedbackid
Specifies the id of the feedback with which the bell is
associated.
percent
Specifies the volume in the range -100 to 100 at which
the bell should be rung.
DESCRIPTION
The XDeviceBell request causes the server to ring a bell on the
specified feedback of the specified device, if possible. The
specified volume is relative to the base volume for the bell.
If an invalid device is specified, a BadDevice error will be
returned. The feedbackclass and feedbackid parameters contain
values returned by an XGetFeedbackControl request and uniquely
identify the bell to ring. If a feedbackclass is specified that
does not support a bell, or if a nonexistent feedbackid is
specified, or a percent value is specified that is not in the
range -100 to 100, a BadValue error will be returned.
The volume at which the bell is rung when the percent argument
is nonnegative is: base - [(base * percent) / 100] + percent
The volume at which the bell rings when the percent argument is
negative is: base + [(base * percent) / 100]
To change the base volume of the bell, use
XChangeFeedbackControl.
XDeviceBell can generate a BadDevice or a BadValue error.
DIAGNOSTICS
BadDevice
An invalid device was specified. The specified device
does not exist, or has not been opened by this client
via XOpenInputDevice.
BadValue
An invalid feedbackclass, feedbackid, or percent value
was specified.
SEE ALSO XChangeFeedbackControl(3), XBell(3)
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