StopWatch v2.00 Sep 1996
========================

Introduction
------------

StopWatch is a simple OPL program for the Psion S3a to time
events to a resolution of up to 10mS.  It behaves as a start/
stop stopwatch.  100 lap times may be latched (though only
the last few are visible in this version)  as the clock is
running.

StopWatch may be freely distributed.


Author
------

Simon Pooley, email: spooley@cix.compulink.co.uk
or try my web page: http://www.cix.compulink.co.uk/~ropewalk/psion

I make no promise to support or enhance StopWatch , but if you have
any ideas, requests or comments then please feel free to email me.


Installation
------------

The distribution contains two versions of StopWatch: StopWatch.OPO and
StopWatch.OPA.

If you want StopWatch to appear with its own icon, copy StopWatch.OPA
to the \APP\ directory on any drive, and install it on the system
screen using Psion-I.

If you want StopWatch to appear under the RunOPL icon on the system
screen, copy StopWatch.OPO to the \OPO\ directory on any drive.

If you want on-line help, copy the help file STOPWTCH.RSC to the
\OPD\ directory on any Psion drive.


Operation
---------

Launch StopWatch by selecting its name under its own icon (StopWatch.OPA)
or the name "StopWatch" under the RunOPL icon (StopWatch.OPO) on the
system screen and pressing <Enter>.

The StopWatch screen features a window showing the current reading,
with several "buttons" under it to remind you of the keyboard
shortcuts to the most common operations.  The right-side of the
screen shows a table where any latched lap times are displayed.

Press Space to start the clock running.  Pressing Space again will
stop the clock.  Delete zeros the display and clears any lap times.
clock running again.

While the clock is running, Enter will latch the current value into
the lap table, without stopping the clock.  Diamond toggles the
display between hh:mm:ss.ss and ssss.ss formats.

See the on-line help for more notes.


Distribution
------------

The following files are contained in the distribution:

STOPWTCH.OPO	OPO version of StopWatch, for launching via the
		RunOPL icon.

STOPWTCH.OPA	Application version of StopWatch, for installation
		on the system screen.

STOPWTCH.RSC	Help file.  Install in an \OPD\ directory on any
		drive.

STOPWTCH.TXT	This file.


History
-------

v1.00 jun1996
 - First widely-distributed version.

v2.00 30sep1996
 Many thanks to all those people who responded to version 1.00 by
 emailing me comments.  Most of the suggestions below are a direct
 result of that feedback.  Thankyou.
 - Change behaviour so that space acts as a start/stop toggle.
   In version 1.00 starting the stopped clock automatically zeroed
   the clock.  Now you must explicitly reset the clock with Delete.
 - Many changes to the lap table:
   o Lap values are now stored so that they can be redisplayed if
     the screen is resized to display a status window or if the
     format is toggled between hh:mm:ss ssss.ss;
   o The font used can be zoomed so you can display between 6 and
     13 lap times;
   o Successive laps now scroll up the table, rather than wrapping;
   o Tab will now clear any lap times without affecting the clock.
 - The program logic has been reworked to be less modal: now most
   functions can be actioned whilst the clock is running (although
   the clock display is not updated whilst other re-drawing is
   going on, StopWatch will still maintain time).
 - Change process name to StopWtch.

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