Displays a list box, and ask an item to user.
listbox <message> <title> <string array>
The listbox macro command shows all selected items of the <string array> array.
If the <string array> is defined as bigger entries than selected nums as follows,
the empty string will be shown at last.
strdim msg 4 msg[0] = 'Banana' msg[1] = 'Apple' msg[2] = 'Orange' listbox 'Select your favorite food.' 'Confirmation' msg ; displays 4 items Banana Apple Orange [Enpty string]
strdim msg 3 msg[0] = 'Banana' msg[1] = 'Apple' msg[2] = 'Orange' listbox 'Select your favorite food.' 'Confirmation' msg sprintf2 var "%d" result messagebox var "result" ; result ; -1: Cancel ; 0: Banana ; 1: Apple ; 2: Orange