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.TH TWCLOCK 1
.SH NAME
twclock \- Amateur radio clock
.SH SYNOPSIS
.B twclock
.SH DESCRIPTION
This manual page documents the
.BR twclock
program.
This manual page was written for the Debian GNU/Linux distribution
because the original program does not have a manual page.
.PP
.B Twclock
is a clock program which will prove to be very helpful
for ham operators. It is implemented with Motif widgets, and
will displays the current time in major cities around the world.
The current time at some point on the globe is determined using
the time zone information contained in the files located under the
directory /usr/share/zoneinfo. A file selection box allows you to
pick the area and city of interest, and the environment variable
TZ is set to the pathname for that time zone file. The clock will
then display the current time for the selected location. Don't
worry, this only changes TZ for the clock process - other processes
are unaffected.
The GUI uses scale widgets to display hours, minutes, and seconds.
There is a label for date and time zone info and a button
which you can give any name. This button acts as an alarm
clock when pressed. The time for this alarm clock can be
set in the application defaults file.
Very few properties were hard coded. This way you can set widget
properties (colors, fonts, labels, etc.) as you like in the defaults
file -
.I Twclock
without recompiling.
There are no pulldown menus, instead there is only this one
"UNDOCUMENTED" popup menu (via mouse button 3). Two of the
menu buttons, "Local" and "GMT" set the clock to that time.
The third menu button, "Others:", pops up a file
selection box dialog that allows you to select an area and city.
The OK button will set the clock to the selected zone. The Cancel
button can be pressed at any time to popdown the dialog, leaving the
time unchange.
The application defaults file
.I Twclock
can be changed to fit
your needs. Instead of changing this system-wide file, you can also
add some lines to your
.I ~/.Xresources
file.
For example, to change the timer, add these lines:
twclock.minutes: t1
.br
twcock.seconds: t2
Some other things you can play with in
.I Twclock
are the x and y values
to position the clock, foreground/background colors, the font and
some labels.
.SH FILES
The application defaults file is in /etc/X11/app-defaults.
.SH SEE ALSO
/usr/share/doc/twclock/README.*
.SH AUTHOR
This manual page was written by Joop Stakenborg <pa3aba@debian.org>,
for the Debian GNU/Linux system (but may be used by others).
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