NAME

XBell — ring the bell. 

SYNOPSIS

XBell(display, percent) Display ∗display; int percent;

ARGUMENTS

displaySpecifies a connection to an X server; returned from XOpenDisplay(). 

percentSpecifies the volume for the bell, relative to the base volume set with XChangeKeyboardControl().  Possible values are −100 (off), through 0 (base volume), to 100 (loudest) inclusive. 

DESCRIPTION

Rings the bell on the keyboard at a volume relative to the base volume, if possible.  percent can range from −100 to 100 inclusive (else a BadValue error).  The volume at which the bell is rung when percent is nonnegative is:

volume = base - [(base ∗ percent) / 100] + percent and when percent is negative:

volume = base + [(base ∗ percent) / 100]

To change the base volume of the bell, set the bell_percent variable of XChangeKeyboardControl(). 

ERRORS

BadValuepercent < −100 or percent >100. 

SEE ALSO

XAutoRepeatOff(), XAutoRepeatOn(), XChangeKeyboardControl(), XGetDefault(), XGetKeyboardControl(), XGetPointerControl(). 

Xlib Reference Manual