man XDeviceBell (Fonctions bibliothèques) - ring a bell on a device supported through the input extension
NAME
XDeviceBell - ring a bell on a device supported through the input extension
SYNTAX
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.