XDeviceBell(X3xi) X Version 11 (Release 6.1)
XDeviceBell --
ring a bell on a device supported through the input extension
Synopsis
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]"
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.
References
XChangeFeedbackControl(X3xi),
XBell(X3xlib)
Xlib - C Language X Interface
UnixWare 7 BL14 Release -- October 1997
© 1997 The Santa Cruz Operation, Inc. All rights reserved.