is a tool that lets you click keys with your mouse, rather than typing on your keyboard. It is an assistive program, ideal for people with limited dexterity in their hands.
You can type all normal characters, both upper and lower case, but those requiring either the Command or Option keys to be depressed in combination with the typed key are excepted.
However, the keyboard is still active on the keypad, so you would be able to type "Copyright) 1999." (The ")" symbol is created by pressing Option-G.)