Apple QuickTime Guide de l'utilisateur télécharger pdf (Page 41)

Chapter 4 Advanced Concepts 41

Copy-Protecting QuickTime Movies

QuickTime movies can be encrypted so that only authorized people can view them.

Such movies are known as “secured media files.” To use such a file, you must enter a

“media key,” which is usually available from the media file provider.

To enter a media key so you can open a secured QuickTime file:

Mac OS X: Open System Preferences, click QuickTime, click Media Keys, and enter the

key provided by the author or vendor.

Windows: Open the QuickTime control panel, choose Media Keys from the pop-up

menu, and enter the key provided by the author or vendor.

Automating QuickTime Player With AppleScript

In Mac OS X, you can use AppleScript to automate QuickTime Player functions. For

example, you can open a movie and tell it to play for a specific duration; automate the

conversion of movies from one format to another; adjust track playback properties

such as start time, volume, and layer; or adjust movie properties such as copyright and

author.

To determine all of the AppleScript commands you can use to control QuickTime

Player, install AppleScript and look at the QuickTime Player AppleScript dictionary.

1 Open Script Editor.

2 Choose File > Open Dictionary.

3 Select QuickTime Player.

Sample QuickTime Player scripts can be found on the AppleScript website.

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Apple QuickTime Guide de l'utilisateur Page 41