XDeviceBell(3) X FUNCTIONS XDeviceBell(3)
NAME
XDeviceBell - ring a bell on a device supported through the input
extension
SYNTAX
Status XDeviceBell(Display *display, XDevice *device, XID *feedback-
class, 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 speci-
fied feedback of the specified device, if possible. The specified vol-
ume 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 XGetFeedback-
Control request and uniquely identify the bell to ring. If a feedback-
class 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 non-
negative is:
base - [(base * percent) / 100] + percent
The volume at which the bell rings when the percent argument is nega-
tive 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 XOpen-
InputDevice.
BadValue An invalid feedbackclass, feedbackid, or percent value was
specified.
SEE ALSO
XChangeFeedbackControl(3), XBell(3)
Programming With Xlib
X Version 11 libXi 1.2.1 XDeviceBell(3)
Mac OS X 10.6 X11 - Generated Sun Mar 7 12:30:14 CST 2010