Beginning AppleScript®

A.14. Chapter 14

A.14.1. Exercise 1 solution

Use the Info panel for the UI elements to change their properties. You can also change the label's title in the interface window by double-clicking the element.

A.14.2. Exercise 2 solution

In this exercise, you need to define one text field for input and two for output. If you name the three fields radius, circumference, and area, respectively, here's what your clicked handler might look like for the Calculate button:

on clicked theObject
    try
        set r to contents of text field "radius" of window "main" as number
    on error
        error "Please enter a number in the radius field!"
    end

    set contents of text field "circumference" of window "main" to 2 * pi * r
    set contents of text field "area" of window "main" to pi * r ^ 2
end clicked