NAME

xclock - analog / digital clock for X

SYNOPSIS

xclock [-toolkitoption ...] [-option ...]

DESCRIPTION

The xclock program displays the time in analog or digital form.  The time is continuously updated at a frequency which may be specified by the user.  This program is nothing more than a wrapper around the Athena Clock widget. 

OPTIONS

Xclock accepts all of the standard X Toolkit command line options along with the additional options listed below:

−help This option indicates that a brief summary of the allowed options should be printed on the standard error. 

−analog
This option indicates that a conventional 12 hour clock face with ticks marks and hands should be used.  This is the default.

−digital
This option indicates that a 24 hour digital clock should be used.

−chime This option indicates that the clock should chime once on the half hour and twice on the hour. 

−hd color
This option specifies the color of the hands on an analog clock.  The default is “black”.

−hl color
This option specifies the color of the edges of the hands on an analog clock, and is only useful on color displays.  The default is “black”.

−update seconds
This option specifies the frequency in seconds at which xclock should update its display.  If the clock is obscured and then exposed, it will be updated immediately.  A value of less than 30 seconds will enable a second hand on an analog clock.  The default is 60 seconds. 

−padding number
This option specifies the width in pixels of the padding between the window border and clock text or picture.  The default is 10 on a digital clock and 8 on an analog clock.

The following standard X Toolkit command line arguments are commonly used with xclock:

−bg color
This option specifies the color to use for the background of the window. The default is “white.”

−bd color
This option specifies the color to use for the border of the window. The default is “black.”

−bw number
This option specifies the width in pixels of the border surrounding the window.

−fg color
This option specifies the color to use for displaying text.  The default is “black”.

−fn font
This option specifies the font to be used for displaying normal text.  The default is “6x10.”

−rv This option indicates that reverse video should be simulated by swapping the foreground and background colors. 

−geometry geometry
This option specifies the prefered size and position of the clock window.

−display host:display
This option specifies the X server to contact.

−xrm resourcestring
This option specifies a resource string to be used.  This is especially useful for setting resources that do not have separate command line options.

X DEFAULTS

This program uses the Clock widget in the X Toolkit.  It understands all of the core resource names and classes as well as:

width (class Width)
Specifies the width of the clock.

height (class Height)
Specifies the height of the clock.

update (class Interval)
Specifies the frequency in seconds at which the time should be redisplayed.

foreground (class Foreground)
Specifies the color for the tic marks.  Using the class specifies the color for all things that normally would appear in the foreground color. The default is “black” since the core default for background is “white.”

hand (class Foreground)
Specifies the color of the insides of the clock’s hands.

high (class Foreground)
Specifies the color used to highlight the clock’s hands.

analog (class Boolean)
Specifies whether or not an analog clock should be used instead of a digital one.  The default is True.

chime (class Boolean)
Specifies whether or not a bell should be rung on the hour and half hour.

padding (class Margin)
Specifies the amount of internal padding in pixels to be used.  The default is 8.

font (class Font)
Specifies the font to be used for the digital clock.  Note that variable width fonts currently will not always display correctly.

reverseVideo (class ReverseVideo)
Specifies that the foreground and background colors should be reversed.

ENVIRONMENT

DISPLAY
to get the default host and display number.

XENVIRONMENT
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

SEE ALSO

X(1), xrdb(1), time(3C), Athena Clock widget

BUGS

Xclock believes the system clock. 

When in digital mode, the string should be centered automatically. 

When specifying an offset, the grammar requires an hours field but if only minutes are given they will be quietly ignored.  A negative offset of less than 1 hour is treated as a positive offset. 

Digital clock windows default to the analog clock size. 

Border color has to be explicitly specified when reverse video is used. 

When the update is an even divisor of 60 seconds, the second hand should always be on a multiple of the update time. 

COPYRIGHT

Copyright 1988, Massachusetts Institute of Technology. 
See X(1) for a full statement of rights and permissions. 

AUTHORS

Tony Della Fera (MIT-Athena, DEC)
Dave Mankins (MIT-Athena, BBN)
Ed Moy (UC Berkeley)
 

X Version 11  —  1 March 1988