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Points to remember

Here are some of the key points of this chapter:

  • Xtras come in five main flavors: Cast member Xtras, import Xtras, transition Xtras, scripting Xtras, and tool Xtras.

  • To install an Xtra, you need to include a copy of it in Director's Xtras folder, which should be in the same folder as the Director application.

  • You may need to bundle Xtras with any projectors derived from your movie. You can do this by bundling the Xtras into the projector (in the Modify Xtras dialog box, select Include in Projector) or by including an Xtras folder with the projector.

  • The Shockwave player provides all of the common Xtras. For most projects, it's likely that you won't need to include any Xtras with your Shockwave movie or slim projector (a projector that uses the Shockwave player to play).

  • Some Xtras come with their own user interfaces. Others are headless, offering functionality but requiring a good amount of Lingo manipulation to set them into action.

  • Treat FileIO and similar Xtras like parent scripts. You need to create a child object of each Xtra and then set that object to work.

  • Don't forget to dispose! Like all child objects, Xtra-derived objects will persist in RAM unless you get rid of them after their usefulness has passed.

  • Instructions on how to use a headless Xtra are usually encoded in the Xtra itself. You can read these instructions in the Message window by using the interface function. Some Xtras come with help files or a readMe file.



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