'\" t
.\"     Title: xdevicebell
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 05/04/2023
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "XDEVICEBELL" "3" "05/04/2023" "\ \&" "\ \&"
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.SH "NAME"
XDeviceBell \- ring a bell on a device supported through the input extension
.SH "SYNOPSIS"
.sp
.nf
#include <X11/extensions/XInput\&.h>
.fi
.sp
.nf
Status XDeviceBell( Display *display,
                    XDevice *device,
                    XID feedbackclass,
                    XID feedbackid,
                    int percent);
display
       Specifies the connection to the X server\&.
.fi
.sp
.nf
device
       Specifies the device with which the bell is associated\&.
.fi
.sp
.nf
feedbackclass
       Specifies the class of the feedback with which the bell
       is associated\&.
.fi
.sp
.nf
feedbackid
       Specifies the id of the feedback with which the bell is
       associated\&.
.fi
.sp
.nf
percent
       Specifies the volume in the range \-100 to 100 at which
       the bell should be rung\&.
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.SH "DESCRIPTION"
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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\&.
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The volume at which the bell is rung when the percent argument
is nonnegative is: base \- [(base * percent) / 100] + percent
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.RE
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.RS 4
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The volume at which the bell rings when the percent argument is
negative is: base + [(base * percent) / 100]
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.RE
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.nf
To change the base volume of the bell, use
XChangeFeedbackControl\&.
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.RE
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XDeviceBell can generate a BadDevice or a BadValue error\&.
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.SH "DIAGNOSTICS"
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BadDevice
       An invalid device was specified\&. The specified device
       does not exist, or has not been opened by this client
       via XOpenInputDevice\&.
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.if n \{\
.RE
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.if n \{\
.RS 4
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.nf
BadValue
       An invalid feedbackclass, feedbackid, or percent value
       was specified\&.
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.if n \{\
.RE
.\}
.SH "SEE ALSO"
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.nf
XChangeFeedbackControl(3), XBell(3)
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