Currency Converter
by Andrew Renault                 
                   
This program converts between different currencies. When run, the
application adds an icon to the icon bar. Clicking Menu over this icon
displays a menu containing the usual Info and Quit options, as well as a
Rates option. Choosing Rates opens the Rates window, allowing the exchange
rates to be set.

Clicking Select over the icon bar icon opens the Currency window. This
displays 12 icons containing the names of countries and two writeable icons
for values. Entering a value in pounds into the top writeable icon then
selecting a country results in the equivalent value in its currency being
displayed in the lower writeable icon.

The procedure can be reversed by entering a value into the lower writeable
icon then selecting the country. The equivalent value in pounds will be
displayed in the top icon. A range of conversions can be performed on one
value by clicking each country's icon in turn. The value in the icon
containing the caret will remain constant while the other value changes.

The exchange rates can be altered from the Rates window. The value of a
country's currency in pounds is entered into a writeable icon. For the last
two entries, the names of the country and the currency can also be changed.
The changes to the rates take effect when the Confirm icon is clicked with
Select. The Cancel icon cancels any changes since the last time Confirm was
selected. The Reset icon resets the rates to their values when the program
was run.

Clicking Menu over the Rates window displays a menu containing two options:  
Save leads to the standard 'Save as' dialogue box, allowing the rates to be
saved in a file, while Print prints the current exchange rates. (Ensure that
you have selected the Confirm icon before either saving or printing,
otherwise the old values will be used).

