XDeviceBell(3X11) X Version 11 (Release 6.6) XDeviceBell(3X11)
NAME
XDeviceBell - ring a bell on a device supported through the
input extension
SYNTAX
Status XDeviceBell(display, device, feedbackclass,
feedbackid, percent)
Display *display;
XDevice *device;
XID *feedbackclass;
XID *feedbackid;
int *percent;
ARGUMENTS
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]
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XDeviceBell(3X11) X Version 11 (Release 6.6) XDeviceBell(3X11)
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(3X), XBell(3X)
Programming With Xlib
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